Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSCHEVROLET1983CAVALIER CS, 2D CONVERTIBLE, 2.0 B, STANDARD, M19REPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEEMISSIONSEMISSION APPLICATIONS - 1966-83 - EXCEPT DIESELEMISSION APPLICATIONS

1983 Chevrolet Cavalier CS, 2D Convertible, 2.0 B, Standard, M19

Emission Applications

1983 Chevrolet Cavalier CS, 2D Convertible, 2.0 B, Standard, M19SECTION Emission Applications

1966 Buick (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

3.7L (225") 6-Cyl. 2-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

5.0L (300") V8 2-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

5.6L (340") V8 2-Bbl. & 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

6.5L (400") V8 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

6.6L (424") V8 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

7.0L (425") V8 4-Bbl. ⁽⁴⁾

⁽²⁾ PCV, ⁽³⁾ AIS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 3 vented (Federal); Type 4 closed (Calif.).

⁽³⁾	California only.

⁽⁴⁾

A/T only.

1966 Cadillac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

7.0L (429") V8 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ AP

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed (California); Type 1 vented (Federal).

⁽³⁾	California only.

1966 Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

5.4L (327") V8 4-Bbl.

PCV, ⁽²⁾ AIS

...

7.0L (427") V8 4-Bbl.

PCV

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	California emissions only.

1966 Chevrolet - Except Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

2.5L (153") 4-Cyl. 1-Bbl.

⁽²⁾ PCV

...

2.7L (164") 6-Cyl. 2x1-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

2.7L (164") 6-Cyl. 4x1-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

3.2L (194") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

3.8L (230") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

4.2L (250") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

4.6L (283") V8 2-Bbl. & 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

5.4L (327") V8 4-Bbl.

⁽²⁾ PCV, SPK, ⁽³⁾ AIS

...

6.5L (396") V8 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

7.0L (427") V8 4-Bbl.

⁽²⁾ PCV, SPK, ⁽³⁾ AIS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 1 vented; Type 4 closed.

⁽³⁾	California only.

1966 Oldsmobile (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

4.2L (250") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

5.4L (33") V8 2-Bbl. & 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

6.5L (400") V8 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

7.0L (425") V8 2-Bbl. & 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed.

⁽³⁾	California only.

1966 Pontiac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

3.8L (230") 6-Cyl. 1-Bbl.

⁽²⁾ ⁽³⁾ PCV, ⁽⁴⁾ AIS

...

3.8L (230") 6-Cyl. 4-Bbl.

⁽²⁾ ⁽³⁾ PCV

...

5.3L (326") V8 2-Bbl.

⁽²⁾ ⁽³⁾ PCV, ⁽⁴⁾ AIS

...

5.3L (326") V8 4-Bbl.

⁽²⁾ ⁽³⁾ PCV, ⁽⁴⁾ AIS

...

6.4L (389") V8 2-Bbl.

⁽²⁾ ⁽³⁾ PCV, ⁽⁴⁾ AIS

...

6.4L (389") V8 3x2-Bbl.

⁽²⁾ ⁽³⁾ PCV

...

6.4L (389") V8 4-Bbl.

⁽²⁾ ⁽³⁾ PCV, ⁽⁴⁾ AIS

...

6.9L (421") V8 3x2-Bbl.

⁽²⁾ ⁽³⁾ PCV

...

6.9L (421") V8 4-Bbl.

⁽²⁾ ⁽³⁾ PCV

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 3 vented (Federal).

⁽³⁾	Type 4 closed.

⁽⁴⁾	California A/T only.

1966 Domestic Trucks & Vans

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

All Models (Carb.) ⁽²⁾

PCV, ⁽³⁾ AIS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	For emission applications on gasoline-powered motor homes 8501 GVWR or more & built on a motor home chassis, see appropriate CLASS "A" MOTOR HOMES table.

⁽³⁾	Light duty California only (6000 GVWR or less).

1966 Class "A" Motor Homes

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

All Engines Carb.

PCV

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

1967 Buick (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

3.7L (225") 6-Cyl. 2-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

5.0L (300") V8 2-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

5.6L (340") V8 2-Bbl. & 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

6.5L (400") V8 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

6.6L (424") V8 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

7.0L (425") V8 4-Bbl. ⁽⁴⁾

⁽²⁾ PCV, ⁽³⁾ AIS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 3 vented (Federal); Type 4 closed (Calif.).

⁽³⁾	California only.

⁽⁴⁾

A/T only.

1967 Cadillac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

7.0L (429") V8 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ AP

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed (California); Type 1 vented (Federal).

⁽³⁾	California only.

1967 Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

5.4L (327") V8 4-Bbl.

PCV, ⁽²⁾ AIS

...

7.0L (427") V8 3x2-Bbl.

PCV, ⁽³⁾ SPK, ⁽²⁾ AIS

...

7.0L (427") V8 4-Bbl.

PCV, ⁽²⁾ AIS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	California emissions only.

⁽³⁾	If equipped with factory multiple carburetors.

1967 Chevrolet - Except Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

2.5L (153") 4-Cyl. 1-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

2.7L (164") 6-Cyl. 2x1-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

2.7L (164") 6-Cyl. 4x1-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

3.2L (194") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

3.8L (230") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

4.2L (250") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

4.6L (283") V8 2-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

5.4L (327") V8 2-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

5.4L (327") V8 4-Bbl.

⁽²⁾ PCV, SPK, ⁽³⁾ AIS

...

5.7L (350") V8 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

6.5L (396") V8 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

7.0L (427") V8 3x2-Bbl.

⁽²⁾ PCV, SPK, ⁽³⁾ AIS

...

7.0L (427") V8 4-Bbl.

⁽²⁾ PCV, SPK, ⁽³⁾ AIS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 1 vented; Type 4 closed.

⁽³⁾	California only.

1967 Oldsmobile (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

4.2L (250") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS

...

5.4L (330") V8 2-Bbl. & 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS
CCS

...

6.5L (400") V8 2-Bbl. & 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS
CCS

...

7.0L (425") V8 2-Bbl. & 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ AIS
CCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed.

⁽³⁾	California only.

1967 Pontiac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

3.8L (230") 6-Cyl. 1-Bbl.

⁽²⁾ ⁽³⁾ PCV, ⁽⁴⁾ SPK, ⁽⁵⁾ AIS

...

3.8L (230") 6-Cyl. 4-Bbl.

⁽²⁾ ⁽³⁾ PCV, ⁽⁴⁾ SPK, ⁽⁵⁾ AIS

...

5.3L (326") V8 2-Bbl.

⁽²⁾ ⁽³⁾ PCV, ⁽⁴⁾ SPK, ⁽⁵⁾ AIS

...

5.3L (326") V8 4-Bbl.

⁽²⁾ ⁽³⁾ PCV, ⁽⁴⁾ SPK, ⁽⁵⁾ AIS

...

6.5L (400") V8 2-Bbl. ⁽⁶⁾

⁽²⁾ ⁽³⁾ PCV, ⁽⁴⁾ SPK, ⁽⁵⁾ ⁽⁷⁾ AIS
⁽⁸⁾ CCS

...

6.5L (400") V8 2-Bbl. ⁽⁹⁾

⁽²⁾ ⁽³⁾ PCV, ⁽⁴⁾ SPK, ⁽⁵⁾ ⁽⁷⁾ AIS

...

6.5L (400") V8 4-Bbl.

⁽²⁾ ⁽³⁾ PCV, ⁽⁴⁾ SPK, ⁽⁵⁾ ⁽⁷⁾ AIS

...

7.0L (428") V8 4-Bbl.

⁽²⁾ ⁽³⁾ PCV, ⁽⁴⁾ SPK, ⁽⁵⁾ ⁽⁷⁾ AIS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 3 vented (Federal).

⁽³⁾	Type 4 closed.

⁽⁴⁾	Some models.

⁽⁵⁾	California only.

⁽⁶⁾

A/T only.

⁽⁷⁾	255 HP engines with A/C.

⁽⁸⁾	Except Tempest.

⁽⁹⁾

M/T only.

1967 Domestic Trucks & Vans

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

All Models (Carb.) ⁽²⁾

PCV, ⁽³⁾ AIS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	For emission applications on gasoline-powered motor homes 8501 GVWR or more & built on a motor home chassis, see appropriate CLASS "A" MOTOR HOMES table.

⁽³⁾	Light duty California only (6000 GVWR or less).

1967 Class "A" Motor Homes

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

All Engines Carb.

PCV

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

1968 Buick (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

4.0L (250") 6-Cyl. 1-Bbl.

PCV, ⁽²⁾ ACL, SPK
CCS

...

5.7L (350") V8 2-Bbl. & 4-Bbl.

PCV, ACL, SPK
CCS

...

6.5L (400") V8 4-Bbl.

PCV, ACL, SPK
CCS

...

7.0L (430") V8 4-Bbl.

PCV, ACL, SPK
CCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾

A/T only.

1968 Cadillac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

7.7L (472") V8 4-Bbl.

PCV, AP

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

1968 Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

5.4L (327") V8 4-Bbl.

PCV, ⁽²⁾ AIS

...

7.0L (427") V8 3x2Bbl.

PCV, ⁽³⁾ SPK, ⁽²⁾ AIS

...

7.0L (427") V8 4-Bbl.

PCV, ⁽²⁾ AIS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾

M/T only.

⁽³⁾	If equipped with factory multiple carburetors.

1968 Chevrolet - Except Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

2.5L (153") 4-Cyl. 1-Bbl.

⁽²⁾ PCV, AIS

...

2.7L (164") 6-Cyl. 2x1-Bbl.

⁽³⁾ PCV, AIS

...

2.7L (164") 6-Cyl. 4x1-Bbl.

⁽³⁾ PCV, AIS

...

3.8L (230") 6-Cyl. 1-Bbl. ⁽⁴⁾

⁽²⁾ PCV, ⁽⁵⁾ AIS

...

3.8L (230") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ACL, ⁽⁵⁾ AIS
⁽⁶⁾ CCS

...

4.2L (250") 6-Cyl. 1-Bbl. ⁽⁴⁾

⁽²⁾ PCV, ⁽⁵⁾ AIS
⁽⁶⁾ CCS

...

4.2L (250") 6-Cyl. 1-Bbl. ⁽⁶⁾

⁽²⁾ PCV, ACL, ⁽⁵⁾ AIS
⁽⁶⁾ CCS

...

5.0L (302") V8 4-Bbl. ⁽⁴⁾

⁽²⁾ PCV, AIS

...

5.0L (307") V8 2-Bbl. ⁽⁴⁾

⁽²⁾ PCV, AIS

...

5.0L (307") V8 2-Bbl. ⁽⁶⁾

⁽²⁾ PCV, ACL
CCS

...

5.4L (327") V8 2-Bbl. ⁽⁴⁾

⁽²⁾ PCV, AIS

...

5.4L (327") V8 2-Bbl.

⁽²⁾ PCV, ⁽⁶⁾ ACL, ⁽⁵⁾ AIS
CCS

...

5.4L (327") 4-Bbl. ⁽³⁾

⁽²⁾ PCV, SPK, ⁽⁵⁾ AIS

...

5.4L (327") V8 4-Bbl. ⁽⁴⁾

⁽²⁾ PCV, AIS
⁽⁶⁾ CCS

...

5.4L (327") V8 4-Bbl. ⁽⁶⁾

⁽²⁾ PCV, ⁽⁶⁾ ACL
⁽⁶⁾ CCS

...

5.7L (350") V8 4-Bbl. ⁽⁴⁾

⁽²⁾ PCV, ⁽⁵⁾ AIS
⁽⁶⁾ CCS

...

5.7L (350") 4-Bbl. ⁽⁶⁾

⁽²⁾ PCV, ⁽⁶⁾ ACL, ⁽⁵⁾ AIS
⁽⁶⁾ CCS

...

6.5L (396") V8 4-Bbl. ⁽⁴⁾

⁽²⁾ PCV, ⁽⁵⁾ AIS
⁽⁶⁾⁽⁷⁾ CCS

...

6.5L (396") V8 4-Bbl. ⁽⁶⁾

⁽²⁾ PCV, ACL, ⁽⁵⁾ AIS
⁽⁶⁾⁽⁷⁾ CCS

...

7.0L (427") V8 3x2-Bbl.

⁽²⁾ PCV, SPK, ⁽⁵⁾ AIS

...

7.0L (427") V8 4-Bbl.

⁽²⁾ PCV, SPK, ⁽⁵⁾ AIS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed.

⁽³⁾	Type 1 vented; Type 4 closed.

⁽⁴⁾	M/T & open element air cleaner.

⁽⁵⁾	California only.

⁽⁶⁾	A/T, except open element air cleaner.

⁽⁷⁾	Except Camaro & Nova.

1968 Oldsmobile (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

4.2L (250") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ⁽³⁾ ACL, SPK
CCS

...

5.7L (350") V8 2-Bbl. & 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ ACL, SPK
CCS

...

6.5L (400") V8 2-Bbl. & 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ ACL, SPK
CCS

...

7.5L (455") V8 2-Bbl. & 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ ACL, SPK
CCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed.

⁽³⁾	Some models.

1968 Pontiac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

4.2L (250") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ SPK
CCS

...

4.2L (250") 6-Cyl. 4-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ SPK
CCS

...

5.7L (350") V8 2-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ SPK
CCS

...

5.7L (350") V8 4-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ SPK
CCS

...

6.5L (400") V8 2-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ SPK
CCS

...

6.5L (400") V8 4-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ SPK
CCS

...

7.0L (428") V8 4-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ SPK
CCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed.

⁽³⁾	Some models.

1968 Domestic Trucks & Vans

Engine & Fuel System ⁽¹⁾

⁽²⁾ Emission Control Systems & Devices

EGR Test No.

3.8L (230") 6-Cyl. Carb. ⁽³⁾

PCV, ⁽⁴⁾ ACL, ⁽⁵⁾ AIS
⁽⁶⁾ CCS

...

4.1L (250") 6-Cyl. Carb. ⁽³⁾

PCV, ⁽⁴⁾ ACL, ⁽⁵⁾ AIS
CCS

...

4.8L (292") 6-Cyl. Carb. ⁽³⁾

PCV, ⁽⁴⁾ ACL

...

5.0L (307") V8 Carb. ⁽³⁾

PCV, ⁽⁴⁾ ACL, ⁽⁵⁾ AIS
⁽⁷⁾ CCS

...

5.4L (327") V8 Carb. ⁽³⁾

PCV, ⁽⁴⁾ ACL

...

6.5L (396") V8 Carb. ⁽³⁾

PCV, ⁽⁴⁾ ACL, ⁽⁸⁾ AIS
⁽⁹⁾ CCS

...

⁽¹⁾	For emission applications on gasoline-powered motor homes 8501 GVWR or more & built on a motor home chassis, see appropriate CLASS "A" MOTOR HOMES table.

⁽²⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽³⁾	Heavy duty uses PCV only (6001 GVWR or more).

⁽⁴⁾	All except oil bath type air cleaner.

⁽⁵⁾

M/T only.

⁽⁶⁾	El Camino with A/T.

⁽⁷⁾

A/T only.

⁽⁸⁾	All light duty trucks & El Camino with 350 HP.

⁽⁹⁾	El Camino with 350 HP.

1968 Class "A" Motor Homes

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

All Engines Carb.

PCV

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

1969 Buick (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

4.0L (250") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ACL, SPK
SPK-TCS, CCS

...

5.7L (350") V6 2-Bbl. & 4-Bbl.

⁽²⁾ PCV, ACL, SPK
SPK-TCS, CCS

...

6.5L (400") V8 4-Bbl.

⁽²⁾ PCV, ACL, SPK
SPK-TCS, CCS

...

7.0L (430) V8 4-Bbl.

⁽²⁾ PCV, ACL, SPK
SPK-TCS, CCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed.

1969 Cadillac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

7.7L (472") V8 4-Bbl.

PCV, AP

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

1969 Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

5.7L (350") V8 4-Bbl.

PCV, ⁽²⁾ AIS

...

7.0L (427") V8 3x2-Bbl.

PCV, ⁽³⁾ SPK, AIS
⁽⁴⁾ CCS

...

7.0L (427") V8 4-Bbl.

PCV, ⁽²⁾ AIS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾

M/T only.

⁽³⁾	If equipped with factory multiple carburetors.

⁽⁴⁾

A/T only.

1969 Chevrolet - Except Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

2.5L (153") 4-Cyl. 1-Bbl.

⁽²⁾ PCV, ⁽³⁾ ACL, ⁽⁴⁾ AIS
⁽⁵⁾ CCS

...

3.8L (230") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ⁽³⁾ ACL, ⁽⁴⁾ AIS
⁽⁵⁾ CCS

...

4.2L (250") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ⁽³⁾ ACL, ⁽⁴⁾ AIS
⁽⁵⁾ CCS

...

5.0L (302") V8 4-Bbl. ⁽⁶⁾

⁽²⁾ PCV, AIS

...

5.0L (307") V8 2-Bbl.

⁽²⁾ PCV, ⁽³⁾ ACL, ⁽⁴⁾ AIS
⁽⁵⁾ CCS

...

5.4L (327") V8 2-Bbl.

⁽²⁾ PCV, ⁽³⁾ ACL, ⁽⁴⁾ AIS
⁽⁵⁾ CCS

...

5.4L (327") V8 4-Bbl.

⁽²⁾ PCV, ⁽⁴⁾ SPK, ⁽⁶⁾ AIS

...

5.7L (350") V8 4-Bbl.

⁽²⁾ PCV, ⁽⁵⁾ ACL, ⁽⁴⁾ AIS
⁽⁵⁾ CCS

...

6.5L (396") V8 2-Bbl.

⁽²⁾ PCV, ⁽³⁾ ACL, ⁽⁴⁾ AIS
⁽⁵⁾ CCS

...

6.5L (396") V8 4-Bbl.

⁽²⁾ PCV, ⁽⁵⁾ ACL, ⁽⁴⁾ AIS
⁽⁵⁾ CCS

...

7.0L (427") V8 3x2-Bbl.

⁽²⁾ PCV, ⁽⁷⁾ SPK, ⁽⁶⁾ AIS
⁽³⁾ CCS

...

7.0L (427") V8 4-Bbl.

⁽²⁾ PCV, ⁽⁴⁾ SPK, ⁽³⁾ AIS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed.

⁽³⁾

A/T only.

⁽⁴⁾	California only.

⁽⁵⁾	A/T, except open element air cleaner.

⁽⁶⁾

M/T only.

⁽⁷⁾	All except open element or dual inlet air cleaner.

1969 Oldsmobile (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

4.2L (250") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ⁽³⁾ ACL, SPK
CCS

...

5.7L (350") V8 2-Bbl. & 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ ACL, SPK
CCS

...

6.5L (400") V8 2-Bbl. & 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ ACL, SPK
CCS

...

7.5L (455") V8 2-Bbl. & 4-Bbl.

⁽²⁾ PCV, ⁽³⁾ ACL, SPK
CCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed.

⁽³⁾	Some models.

1969 Pontiac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

4.2L (250") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ SPK
CCS

...

4.2L (250") 6-Cyl. 4-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ SPK
CCS

...

5.7L (350") V8 2-Bbl. ⁽⁴⁾

⁽²⁾ PCV, ACL, ⁽³⁾ SPK
CCS

...

5.7L (350") V8 2-Bbl. ⁽⁵⁾

⁽²⁾ PCV, ACL, ⁽³⁾ SPK
CCS, VA

...

5.7L (350") V8 4-Bbl. ⁽⁴⁾

⁽²⁾ PCV, ACL, ⁽³⁾ SPK
CCS

...

5.7L (350") V8 4-Bbl. ⁽⁵⁾

⁽²⁾ PCV, ACL, ⁽³⁾ SPK
CCS

...

6.5L (400") V8 2-Bbl. ⁽⁴⁾

⁽²⁾ PCV, ACL, ⁽³⁾ SPK
CCS

...

6.5L (400") V8 2-Bbl. ⁽⁵⁾

⁽²⁾ PCV, ACL, ⁽³⁾ SPK
CCS, VA

...

6.5L (400") V8 4-Bbl. ⁽⁴⁾

⁽²⁾ PCV, ACL, ⁽³⁾ SPK
CCS

...

6.5L (400") V8 4-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ SPK
CCS

...

7.0L (428") V8 4-Bbl. ⁽⁴⁾

⁽²⁾ PCV, ACL, ⁽³⁾ SPK
CCS

...

7.0L (428") V8 4-Bbl. ⁽⁵⁾

⁽²⁾ PCV, ACL, ⁽³⁾ SPK
CCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed.

⁽³⁾	Some models.

⁽⁴⁾

A/T only.

⁽⁵⁾

M/T only.

1969 Domestic Trucks & Vans

Engine & Fuel System ⁽¹⁾

⁽²⁾ Emission Control Systems & Devices

EGR Test No.

3.8L (230") 6-Cyl. Carb. ⁽³⁾

PCV, ⁽⁴⁾ ACL, ⁽⁵⁾ AIS
⁽⁶⁾ CCS

...

4.1L (250") 6-Cyl. Carb. ⁽³⁾

PCV, ⁽⁴⁾ ACL, ⁽⁵⁾ AIS
⁽⁶⁾ CCS

...

4.8L (292") 6-Cyl. Carb. ⁽³⁾

PCV, ⁽⁴⁾ ACL, ⁽⁵⁾ AIS
⁽⁶⁾ CCS

...

5.0L (307") V8 Carb.

PCV, ⁽⁴⁾ ACL, ⁽⁷⁾ AIS
⁽⁸⁾ CCS

...

5.7L (350") V8 Carb. ⁽³⁾

PCV, ⁽⁴⁾ ACL, ⁽⁷⁾ AIS
⁽⁸⁾ CCS

...

6.5L (396") V8 Carb. ⁽³⁾

PCV, ⁽⁴⁾ ACL, ⁽⁵⁾ AIS
⁽⁸⁾ CCS

...

⁽¹⁾	For emission applications on gasoline-powered motor homes 8501 GVWR or more & built on a motor home chassis, see appropriate CLASS "A" MOTOR HOMES table.

⁽²⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽³⁾	Heavy duty uses PCV only (6001 GVWR or more).

⁽⁴⁾	All except oil bath type air cleaner.

⁽⁵⁾

M/T only.

⁽⁶⁾	El Camino with A/T.

⁽⁷⁾	M/T light duty trucks only.

⁽⁸⁾	A/T light duty trucks only.

1969 Class "A" Motor Homes

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

All Engines Carb.

PCV

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

1970 Buick (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

4.0L (250") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

5.7L (350") V8 2-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

5.7L (350") V8 4-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

7.5L (455") V8 4-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed.

⁽³⁾	California only.

1970 Cadillac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

7.7L (472") V8 4-Bbl.

PCV, ACL, ⁽³⁾ EVAP, SPK, AP
⁽³⁾ EVAP-VC, SPK-TCS, CCS

...

8.2L (500") V8 4-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ EVAP, SPK
⁽³⁾ EVAP-VC, SPK-TCS, CCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed (California); Type 1 vented (Federal).

⁽³⁾	California only.

1970 Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

5.7L (350") V8 4-Bbl. California

PCV, EVAP, ⁽²⁾ SPK
EVAP-VC, CCS

...

5.7L (350") V8 4-Bbl. Federal

PCV, ⁽²⁾ SPK, ⁽³⁾ AIS

...

7.5L (454") V8 4-Bbl.

PCV, ⁽⁴⁾ EVAP, SPK, ⁽⁵⁾ AIS
EVAP-VC

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Some models.

⁽³⁾	On 370 HO (LT-1) engine only.

⁽⁴⁾	California emissions only.

⁽⁵⁾	On 460 HP engine only.

1970 Chevrolet - Except Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

2.5L (153") 4-Cyl. 1-Bbl.

⁽²⁾ PCV, ⁽³⁾ EVAP, SPK, AIS
EVAP-VC, SPK-TCS

...

3.8L (230") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

4.2L (250") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

5.0L (302") V8 4-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

5.0L (307") V8 2-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

5.7L (350") V8 2-Bbl.

⁽²⁾ PCV, ⁽⁴⁾ ACL, ⁽³⁾ EVAP, SPK, ⁽³⁾ AIS
EVAP-VC, SPK-TCS, ⁽⁴⁾ CCS

...

5.7L (350") V8 4-Bbl.

⁽²⁾ PCV, ⁽⁴⁾ ACL, ⁽³⁾ EVAP, SPK, ⁽³⁾ AIS
EVAP-VC, SPK-TCS, ⁽⁴⁾ CCS

...

6.5L (396") V8 4-Bbl.

⁽²⁾ PCV, ⁽⁴⁾ ACL, ⁽³⁾ EVAP, SPK, ⁽³⁾ AIS
EVAP-VC, SPK-TCS, ⁽⁴⁾ CCS

...

6.5L (400") v8 2-Bbl.

⁽²⁾ PCV, ⁽⁴⁾ ACL, ⁽³⁾ EVAP, SPK, ⁽³⁾ AIS
EVAP-VC, SPK-TCS, ⁽⁴⁾ CCS

...

6.6L (402") V8 4-Bbl.

⁽²⁾ PCV, ⁽⁴⁾ ACL, ⁽³⁾ EVAP, SPK, ⁽³⁾ AIS
EVAP-VC, SPK-TCS, ⁽⁴⁾ CCS

...

7.0L (427") V8 4-Bbl.

⁽²⁾ PCV, ⁽⁴⁾ ACL, ⁽³⁾ EVAP, SPK, ⁽³⁾ AIS
EVAP-VC, SPK-TCS, ⁽⁴⁾ CCS

...

7.5L (454") V8 4-Bbl.

⁽²⁾ PCV, ⁽⁴⁾ EVAP, SPK, ⁽³⁾ AIS
EVAP-VC, SPK-TCS, ⁽⁴⁾ CCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed.

⁽³⁾	California only.

⁽⁴⁾	All except open element or dual inlet air cleaner.

1970 Oldsmobile (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

4.2L (250") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ EVAP, SPK
EVAP-VC, CCS, SPK-TCS

...

5.7L (350") V8 2-Bbl. & 4-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ EVAP, SPK
EVAP-VC, CCS, SPK-TCS

...

7.5L (455") V8 2-Bbl. & 4-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ EVAP, SPK
EVAP-VC, CCS, SPK-TCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed.

⁽³⁾	California only.

1970 Pontiac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

4.2L (250") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

5.7L (350") V8 2-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

6.5L (400") V8 2-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

6.5L (400") V8 4-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

7.5L (455") V8 4-Bbl.

⁽²⁾ PCV, ACL, ⁽³⁾ EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed.

⁽³⁾	California only.

1970 Domestic Trucks & Vans

Engine & Fuel System ⁽¹⁾

⁽²⁾ Emission Control Systems & Devices

EGR Test No.

4.1L (250") 6-Cyl. Carb. ⁽³⁾

PCV, ⁽⁴⁾ ACL, ⁽⁵⁾ EVAP, ⁽⁶⁾ SPK
EVAP-VC, SPK-TCS, ⁽⁶⁾ CCS

...

4.8L (292") 6-Cyl. Carb. ⁽³⁾

PCV, ⁽⁴⁾ ACL, ⁽⁵⁾ EVAP, ⁽⁶⁾ SPK
EVAP-VC, SPK-TCS, ⁽⁶⁾ CCS

...

5.0L (307") V8 Carb. ⁽³⁾

PCV, ⁽⁴⁾ ⁽⁷⁾ ACL, ⁽⁵⁾ EVAP, ⁽⁶⁾ SPK
EVAP-VC, SPK-TCS, ⁽⁶⁾ CCS

...

5.7L (350") V8 Carb. ⁽³⁾

PCV, ⁽⁴⁾ ACL, ⁽⁵⁾ EVAP, ⁽⁶⁾ SPK
EVAP-VC, SPK-TCS, ⁽⁶⁾ CCS

...

6.0L (366") & 6.2L (379") V8 Carb.

PCV

...

6.5L (396") V8 Carb. ⁽³⁾

PCV, ⁽⁴⁾ ACL, ⁽⁵⁾ EVAP, ⁽⁶⁾ SPK
EVAP-VC, SPK-TCS, ⁽⁶⁾ CCS

...

7.0L (427"/432") V8 Carb.

PCV

...

7.7L (473") V8 Carb.

PCV

...

⁽¹⁾	For emission applications on gasoline-powered motor homes 8501 GVWR or more & built on a motor home chassis, see appropriate CLASS "A" MOTOR HOMES table.

⁽²⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽³⁾	Heavy duty uses PCV only (6001 GVWR or more).

⁽⁴⁾	All except oil bath type air cleaner.

⁽⁵⁾	Light duty California only (6000 GVWR or less).

⁽⁶⁾	All trucks & light duty vans only (6000 GVWR or less).

⁽⁷⁾	All air cleaners are thermostatically controlled, except oil bath type.

1970 Class "A" Motor Homes

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

All Engines Carb.

PCV, ⁽²⁾ ⁽³⁾ EVAP

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Some California models.

⁽³⁾	Some models.

1971 Buick (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

4.0L (250") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

5.7L (350") V8 2-Bbl. & 4-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

7.5L (455") V8 4-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed.

1971 Cadillac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

7.7L (472") V8 4-Bbl.

PCV, ACL, EVAP, SPK, AP
EVAP-VC, SPK-TCS

...

8.2L (500") V8 4-Bbl.

PCV, ACL, EVAP, SPK, AP
EVAP-VC, SPK-TCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

1971 Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

5.7L (350") V8 4-Bbl.

PCV, EVAP, SPK, ⁽²⁾ AIS
EVAP-VC

...

7.5L (454") V8 4-Bbl.

PCV, EVAP-, SPK, ⁽³⁾ AIS
EVAP-VC

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	On 330 HP engine only.

⁽³⁾	On 425 engine only.

1971 Chevrolet - Except Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

2.3L (140") 4-Cyl. 1-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

4.2L (250") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

5.0L (307") V8 2-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

5.7L (350") V8 2-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK, ⁽³⁾ AIS
EVAP-VC, SPK-TCS, ⁽⁴⁾ CCS

...

5.7L (350") V8 4-Bbl.

⁽²⁾ PCV, ⁽⁴⁾ ACL, EVAP, SPK, ⁽³⁾ AIS
EVAP-VC, SPK-TCS, ⁽⁴⁾ CCS

...

6.5L (400") V8 2-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

6.6L (402") V8 4-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

7.5L (454") V8 4-Bbl.

⁽²⁾ PCV, ⁽⁴⁾ ACL, EVAP, SPK, ⁽³⁾ AIS
EVAP-VC, SPK-TCS, ⁽⁴⁾ CCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed.

⁽³⁾	Open element air cleaner only.

⁽⁴⁾	All except open element or dual inlet air cleaner.

1971 Oldsmobile (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

4.2L (250") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

5.7L (350") V8 2-Bbl. & 4-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, ⁽³⁾ SPK-DVCS, ⁽⁴⁾ SPK-TCS, CCS

...

7.5L (455") V8 2-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, ⁽³⁾⁽⁵⁾ SPK-DVCS, ⁽⁶⁾ SPK-TCS, CCS

...

7.5L (455") V8 4-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, ⁽³⁾⁽⁵⁾ SPK-DVCS, ⁽⁷⁾ SPK-TCS, CCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed.

⁽³⁾	A/C or heavy duty cooling only.

⁽⁴⁾	Without A/C.

⁽⁵⁾	"A" Body & Toronado.

⁽⁶⁾	"B" Body with A/C.

⁽⁷⁾	"B" & "C" Bodies with A/C.

1971 Pontiac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

4.2L (250") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

5.0L (307") V8 2-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

5.7L (350") V8 2-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

6.5L (400") V8 2-Bbl. ⁽³⁾

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

6.5L (400") V8 4-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

7.5L (455") V8 2-Bbl. ⁽³⁾

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

7.5L (455") V8 4-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, ⁽⁴⁾ SPK-TCS, CCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed.

⁽³⁾

A/T only.

⁽⁴⁾	Except HO engines.

1971 Domestic Trucks & Vans

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

Light Duty Emissions (6000 GVWR Or Less)

4.1L (250") 6-Cyl. Carb.

PCV, ⁽³⁾ ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

4.8L (292") 6-Cyl. Carb.

PCV, ⁽³⁾ ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

5.0L (307") V8 Carb.

PCV, ⁽³⁾ ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

5.7L (350") V8 Carb.

PCV, ⁽³⁾ ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

6.6L (402") V8 Carb.

PCV, ⁽³⁾ ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

Heavy Duty Emissions (6001 GVWR Or More) ⁽²⁾

4.1L (250") 6-Cyl. Carb.

PCV, ⁽³⁾ ACL
CCS

...

4.8L (292") 6-Cyl. Carb.

PCV, ⁽³⁾ ACL
CCS

...

5.0L (307"), 5.7L (350") & 6.6L (402") V8 Carb.

PCV, ⁽³⁾ ACL
CCS

...

6.0L (366") & 6.2L (379") V8 Carb.

PCV

...

7.0L (427"/432") V8 Carb.

PCV

...

7.7L (473") V8 Carb.

PCV

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	For emission applications on gasoline-powered motor homes 8501 GVWR or more & built on a motor home chassis, see appropriate CLASS "A" MOTOR HOMES table.

⁽³⁾	All air cleaners are thermostatically controlled, except oil bath type.

1971 Class "A" Motor Homes

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

All Engines Carb.

PCV, ⁽²⁾ ⁽³⁾ EVAP

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Some California models.

⁽³⁾	Some models.

1972 Buick (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

5.7L (350") V8 2-Bbl. ⁽³⁾⁽⁴⁾

⁽⁵⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, SPK-TCS, CCS

5.7L (350") V8 2-Bbl. ⁽⁴⁾⁽⁶⁾

⁽⁵⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

5.7L (350") V8 2-Bbl.

⁽⁵⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, SPK-TCS, CCS

5.7L (350") V8 2-Bbl. ⁽⁶⁾⁽⁷⁾

⁽⁵⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, SPK-TCS, CCS

5.7L (350") V8 4-Bbl. ⁽³⁾⁽⁴⁾

⁽⁵⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, SPK-TCS, CCS

5.7L (350") V8 4-Bbl. ⁽⁴⁾⁽⁶⁾

⁽⁵⁾ PCV, ACL, EVAP, SPK, AIS
EVAP-VC, SPK-TCS, CCS

...

5.7L (350") V8 4-Bbl. ⁽³⁾⁽⁷⁾

⁽⁵⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, SPK-TCS, CCS

5.7L (350") V8 4-Bbl. ⁽⁶⁾⁽⁷⁾

⁽⁵⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, SPK-TCS, CCS

7.5L (455") V8 4-Bbl.

⁽⁵⁾ PCV, ACL, ⁽⁸⁾ EVAP, EGR, SPK, AIS
EVAP-VC, SPK-TCS, CCS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California only.

⁽⁴⁾

A/T only.

⁽⁵⁾	Type 4 closed.

⁽⁶⁾	Federal only.

⁽⁷⁾

M/T only.

⁽⁸⁾	Type 3 vented (Federal); Type 4 closed (Calif.).

1972 Cadillac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

7.7L (472") V8 4-Bbl.

PCV, ACL, EVAP, AP
EVAP-VC, CCS

...

8.2L (500") V8 4-Bbl.

PCV, ACL, EVAP, AP
EVAP-VC, CCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

1972 Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

5.7L (350") V8 4-Bbl.

PCV, EVAP, SPK, ⁽²⁾ AIS
EVAP-CS, ⁽³⁾ CCS

...

7.5L (454") V8 4-Bbl.

PCV, EVAP, SPK, AIS
EVAP-VC

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Required on high performance Fed. 225 HP (LT-1) engine & Calif. engines.

⁽³⁾	Required on Federal base engine only.

1972 Chevrolet - Except Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

2.3L (140") 4-Cyl. 1-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK, ⁽⁴⁾ AIS
EVAP-VC, ⁽⁵⁾ SPK-TCS, ⁽⁶⁾ CCS

...

2.3L (140") 4-Cyl. 2-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK, ⁽⁴⁾ AIS
EVAP-VC, ⁽⁵⁾ SPK-TCS, ⁽⁶⁾ CCS

...

4.2L (250") 6-Cyl. 1-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK, ⁽³⁾ AIS
EVAP-VC, SPK-TCS, ⁽⁷⁾ CCS

...

5.0L (307") V8 2-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK, ⁽⁸⁾ ⁽⁹⁾ AIS
EVAP-VC, SPK-TCS, ⁽⁷⁾ CCS

...

5.7L (350") V8 2-Bbl.

⁽²⁾ PCV, ⁽¹⁰⁾ ACL, EVAP, SPK, ⁽⁸⁾ ⁽¹¹⁾ AIS
EVAP-VC, SPK-TCS, ⁽⁷⁾ CCS

...

5.7L (350") V8 4-Bbl.

⁽²⁾ PCV, ⁽¹⁰⁾ ACL, EVAP, SPK, ⁽⁸⁾ ⁽¹¹⁾ AIS
EVAP-VC, SPK-TCS, ⁽⁷⁾ CCS

...

6.5L (400") V8 2-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK, ⁽⁸⁾ AIS
EVAP-VC, SPK-TCS, ⁽⁷⁾ CCS

...

6.6L (402") V8 4-Bbl.

⁽²⁾ PCV, ⁽¹⁰⁾ ACL, EVAP, SPK, ⁽⁷⁾ AIS
EVAP-VC, SPK-TCS

...

7.5L (454") V8 4-Bbl.

⁽²⁾ PCV, ⁽¹⁰⁾ ACL, EVAP, SPK, ⁽⁷⁾ AIS
EVAP-VC, SPK-TCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed.

⁽³⁾	California only.

⁽⁴⁾	All 110 HP & Calif. 90 HP engines only.

⁽⁵⁾	All except California A/T.

⁽⁶⁾	All 90 HP, except California.

⁽⁷⁾	Federal only.

⁽⁸⁾	Required for California; optional for Federal.

⁽⁹⁾	165 HP only.

⁽¹⁰⁾	All except open element or dual element air cleaner.

⁽¹¹⁾	Federal open element air cleaner only.

1972 Oldsmobile (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

5.7L (350") V8 2-Bbl. & 4-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-DVCS, CCS

...

7.5L (455") V8 4-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-DVCS, CCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed.

1972 Pontiac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

4.2L (250") 6-Cyl. 1-Bbl. ⁽³⁾

⁽²⁾ PCV, ACL, EVAP, SPK, ⁽⁴⁾ AIS
EVAP-VC, CCS

...

4.2L (250") 6-Cyl. 1-Bbl. ⁽⁵⁾

⁽²⁾ PCV, ACL, EVAP, SPK, ⁽⁴⁾ AIS
EVAP-VC, CCS

...

5.0L (307") V8 2-Bbl.

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, CCS

...

5.7L (350") V8 2-Bbl. ⁽³⁾

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-SC, CCS

...

6.5L (400") V8 2-Bbl. ⁽³⁾

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-SC, CCS

...

6.5L (400") V8 4-Bbl. ⁽³⁾

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-SC, CCS

...

6.5L (400") V8 4-Bbl. ⁽⁵⁾

⁽²⁾ PCV, ACL, EVAP, ⁽⁶⁾ SPK
EVAP-VC, ⁽⁶⁾ SPK-SC, ⁽⁷⁾SPK-TCS, CCS

...

7.5L (455") V8 4-Bbl. ⁽³⁾

⁽²⁾ PCV, ACL, EVAP, SPK
EVAP-VC, SPK-SC, CCS

...

7.5L (455") V8 4-Bbl. ⁽⁵⁾

⁽²⁾ PCV, ACL, EVAP, ⁽⁶⁾ SPK
EVAP-VC, ⁽⁶⁾ SPK-SC, ⁽⁷⁾ SPK-TCS, CCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Type 4 closed.

⁽³⁾

A/T only.

⁽⁴⁾	California only.

⁽⁵⁾

M/T only.

⁽⁶⁾

3-speed.

⁽⁷⁾

4-speed.

1972 Domestic Trucks & Vans

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

Light Duty Emissions (6000 GVWR Or Less)

4.1L (250") 6-Cyl. Carb.

PCV, ACL, EVAP, ⁽³⁾ SPK, ⁽⁴⁾ AIS
EVAP-VC, SPK-TCS, ⁽³⁾ CCS

...

4.8L (292") 6-Cyl. Carb.

PCV, ACL, EVAP, SPK, ⁽⁵⁾ SPK
EVAP-VC, SPK-TCS, CCS

...

5.0L (307") V8 Carb.

PCV, ACL, EVAP, SPK
EVAP-VC, SPK-TCS, CCS

...

5.7L (350") V8 Carb.

PCV, ACL, EVAP, ⁽⁴⁾ SPK, ⁽⁵⁾ AIS
EVAP-VC, SPK-TCS, ⁽⁴⁾ CCS

...

6.6L (402") V8 Carb.

PCV, ACL, EVAP, SPK, ⁽³⁾ SPK
EVAP-VC, SPK-TCS

...

Heavy Duty Emissions (6001 GVWR Or More) ⁽²⁾

4.1L (250") 6-Cyl. Carb.

PCV, ACL
⁽³⁾ CCS

...

4.8L (292") V8 Carb

PCV, ACL
CCS

...

5.0L (307") V8 Carb.

PCV, ACL
CCS

...

5.7L (350") V8 Carb.

PCV, ACL
CCS

...

6.0L (366") & 6.2L (379") V8 Carb.

PCV, ⁽³⁾ ACL

...

6.6L (402") V8 Carb.

PCV, ACL
CCS

...

7.0L (427"/432") V8 Carb.

PCV, ⁽³⁾ ACL

...

7.7L (473") V8 Carb.

PCV, ⁽³⁾ ACL

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	For emission applications on gasoline-powered motor homes 8501 GVWR or more & built on a motor home chassis, see appropriate CLASS "A" MOTOR HOMES table.

⁽³⁾	Federal only.

⁽⁴⁾	Some models.

⁽⁵⁾	California only.

1972 Class "A" Motor Homes

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

All Engines Carb.

PCV, ⁽²⁾ ⁽³⁾ EVAP

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Some California models.

⁽³⁾	Some models.

1972 Imported Cars & Trucks

Model, Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

LUV 2-Bbl.

PCV, ACL, ⁽²⁾ EVAP, SPK, AIS
CRV, SPK-DPD

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Crankcase storage type.

1973 Buick (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

4.0L (250") 6-Cyl. 1-Bbl. ⁽³⁾

⁽⁴⁾ PCV, ACL, ⁽⁵⁾ EVAP, EGR, SPK, AIS

4.0L (250") 6-Cyl. 1-Bbl. ⁽⁶⁾

⁽⁴⁾ PCV, ACL, EVAP, SPK, AIS
EVAP-VC, SPK-TCS, CCS

...

5.7L (350") V8 2-Bbl.

⁽⁴⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, SPK-TCS, CCS

5.7L (350") V8 4-Bbl. ⁽³⁾

⁽⁴⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, CCS

5.7L (350") V8 4-Bbl. ⁽⁶⁾

⁽⁴⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, SPK-TCS, CCS

7.5L (455") V8 4-Bbl. ⁽³⁾

⁽⁴⁾ PCV, ACL, EVAP, EGR, ⁽⁷⁾ SPK, AIS
EVAP-VC, ⁽⁷⁾ SPK-TCS, CCS

7.5L (455") V8 4-Bbl. ⁽⁶⁾

⁽⁴⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, SPK-TCS, CCS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾

A/T only.

⁽⁴⁾	Type 4 closed.

⁽⁵⁾	Vapor canister type.

⁽⁶⁾

M/T only.

⁽⁷⁾	Stage 1 engine only.

1973 Cadillac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

7.7L (472") V8 4-Bbl.

PCV, ACL, ⁽³⁾ EVAP, EGR, AP

8.2L (500") V8 4-Bbl.

PCV, ACL, ⁽³⁾ EVAP, EGR, AP

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Vapor canister type.

1973 Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

5.7L (350") V8 4-Bbl.

PCV, EVAP, EGR, SPK, AIS
EVAP-VC

7.5L (454") V8 4-Bbl.

PCV, EVAP, EGR, SPK, AIS
EVAP-VC

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

1973 Chevrolet - Except Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

2.3L (140") 4-Cyl. 1-Bbl. ⁽³⁾

⁽⁴⁾ PCV, ACL, EVAP, EGR
EVAP-VC, CCS

2.3L (140") 4-Cyl. 1-Bbl. ⁽⁵⁾

⁽⁴⁾ PCV, ACL, EVAP, EGR, SPK
EVAP-VC, ⁽⁶⁾ SPK-TCS, CCS

2.3L (140") 4-Cyl. 2-Bbl. ⁽⁵⁾

⁽⁴⁾ PCV, ACL, EVAP, EGR
EVAP-VC, CCS

2.3L (140") 4-Cyl. 2-Bbl. ⁽⁵⁾

⁽⁴⁾ PCV, ACL, EVAP, EGR, SPK
EVAP-VC, ⁽⁶⁾ SPK-TCS, CCS

4.2L (250") 6-Cyl. 1-Bbl. ⁽³⁾

⁽⁴⁾ PCV, ACL, ⁽⁷⁾ EVAP, EGR, AIS

4.2L (250") 6-Cyl. 1-Bbl. ⁽⁵⁾

⁽⁴⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, SPK-TCS

5.0L (307") V8 2-Bbl.

⁽⁴⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, SPK-TCS

5.7L (350") V8 2-Bbl.

⁽⁴⁾ PCV, ⁽⁸⁾ ACL, EVAP, EGR, SPK, AIS
EVAP-VC, ⁽⁸⁾ SPK-TCS

5.7L (350") V8 4-Bbl.

⁽⁴⁾ PCV, ⁽⁸⁾ ACL, EVAP, EGR, SPK, AIS
EVAP-VC, ⁽⁵⁾ SPK-TCS

6.5L (400") V8 2-Bbl. ⁽³⁾

⁽⁴⁾ PCV, ACL, ⁽⁷⁾ EVAP, EGR, AIS

7.5L (454") V8 4-Bbl.

⁽⁴⁾ PCV, ⁽⁸⁾ ACL, EVAP, EGR, SPK, AIS
EVAP-VC, ⁽⁵⁾ SPK-TCS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾

A/T only.

⁽⁴⁾	Type 4 closed.

⁽⁵⁾

M/T only.

⁽⁶⁾	All 110 HP & Calif. 90 HP engines only.

⁽⁷⁾	Vapor canister type.

⁽⁸⁾	All except open element or dual element air cleaner.

1973 Oldsmobile (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

4.2L (250") 6-Cyl. 1-Bbl. ⁽³⁾

⁽⁴⁾ PCV, ACL, EVAP, EGR, AIS
EVAP-VC, CCS

4.2L (250") 6-Cyl. 1-Bbl. ⁽⁵⁾

⁽⁴⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, CCS

5.7L (350") V8 2-Bbl. & 4-Bbl.

⁽⁴⁾ PCV, ACL, EVAP, EGR, AIS
EVAP-VC, CCS

7.5L (455") V8 4-Bbl.

⁽⁴⁾ PCV, ACL, EVAP, EGR, AIS
EVAP-VC, CCS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾

A/T only.

⁽⁴⁾	Type 4 closed.

⁽⁵⁾

M/T only.

1973 Pontiac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

4.2L (250") 6-Cyl. 1-Bbl. ⁽⁴⁾

⁽³⁾ PCV, ACL, ⁽⁵⁾ EVAP, EGR, SPK, AIS

4.2L (250") 6-Cyl. 1-Bbl. ⁽⁶⁾

⁽³⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, SPK-TCS

5.7L (350") V8 2-Bbl. ⁽⁴⁾

⁽³⁾ PCV, ACL, EVAP, EGR, SPK, ⁽⁷⁾ AIS
EVAP-VC, SPK-TCS

5.7L (350") V8 2-Bbl. ⁽⁶⁾

⁽³⁾ PCV, ACL, EVAP, EGR, SPK
EVAP-VC, SPK-TCS

6.5L (400") V8 2-Bbl. ⁽⁴⁾

⁽³⁾ PCV, ACL, EVAP, EGR, SPK, ⁽⁸⁾ AIS
EVAP-VC, SPK-TCS

6.5L (400") V8 4-Bbl. ⁽⁴⁾

⁽³⁾ PCV, ACL, EVAP, EGR, SPK
EVAP-VC, SPK-TCS

6.5L (400") V8 4-Bbl. ⁽⁶⁾

⁽³⁾ PCV, ACL, EVAP, EGR, SPK
EVAP-VC, SPK-TCS

7.5L (455") V8 4-Bbl.

⁽³⁾ PCV, ACL, EVAP, EGR, SPK
EVAP-VC, SPK-TCS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Type 4 closed.

⁽⁴⁾

A/T only.

⁽⁵⁾	Vapor canister type.

⁽⁶⁾

M/T only.

⁽⁷⁾	California only.

⁽⁸⁾	California "B" station wagon.

1973 Domestic Trucks & Vans

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

Light Duty Emissions (6000 GVWR Or Less)

4.1L (250") 6-Cyl. Carb.

PCV, ACL, EVAP, EGR, SPK, ⁽⁴⁾ AIS
EVAP-VC, SPK-TCS

5.0L (307") V8 Carb.

PCV, ACL, EVAP, EGR, ⁽⁵⁾ SPK, AIS
EVAP-VC, SPK-TCS, CCS

5.0L (350") V8 Carb.

PCV, ACL, EVAP, EGR, ⁽⁵⁾ SPK, AIS
EVAP-VC, SPK-TCS

7.4L (454") V8 Carb.

PCV, ACL, EVAP, EGR, ⁽⁵⁾ SPK, AIS
EVAP-VC, SPK-TCS

Heavy Duty Emissions (6001 GVWR Or More) ⁽³⁾

4.1L (250") 6-Cyl. Carb.

PCV, ACL, ⁽⁷⁾ EVAP
EVAP-VC, ⁽⁶⁾ CCS

...

4.8L (292") 6-Cyl. Carb.

PCV, ACL, ⁽⁷⁾ EVAP, ⁽⁸⁾ AIS
EVAP-VC, ⁽⁶⁾ CCS

...

5.0L (307") V8 Carb.

PCV, ⁽⁸⁾ ACL, ⁽⁷⁾ EVAP
EVAP-VC, CCS

...

5.7L (350") V8 Carb.

PCV, ⁽⁸⁾ ACL, ⁽⁷⁾ EVAP
EVAP-VC, CCS

...

6.0L (366") & 6.2L (379") V8 Carb.

PCV, ⁽⁶⁾ ACL

...

7.0L (427"/432") V8 Carb.

PCV, ⁽⁶⁾ ACL

...

7.4L (454") V8 Carb.

PCV, ⁽⁷⁾ ACL, ⁽⁷⁾ EVAP, ⁽⁸⁾ AIS
EVAP-VC, ⁽⁶⁾ CCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - TRUCKS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	For emission applications on gasoline-powered motor homes 8501 GVWR or more & built on a motor home chassis, see appropriate CLASS "A" MOTOR HOMES table.

⁽⁴⁾	All models except Federal A/T.

⁽⁵⁾

M/T only.

⁽⁶⁾	Federal only.

⁽⁷⁾	Some models.

⁽⁸⁾	California only.

1973 Class "A" Motor Homes

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

All Engines Carb.

PCV, ⁽²⁾ ⁽³⁾ EVAP

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Some California models.

⁽³⁾	Some models.

1973 Imported Cars & Trucks

Model, Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

LUV 2-Bbl.

PCV, ACL, ⁽²⁾ EVAP, SPK, AIS
CRV, SPK-DPD

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Crankcase storage type.

1974 Buick (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

4.0L (250") 6-Cyl. 1-Bbl. ⁽³⁾⁽⁴⁾

⁽⁵⁾ PCV, ACL, EVAP, EGR, SPK
EVAP-VC, CCS

4.0L (250") 6-Cyl. 1-Bbl. ⁽⁶⁾

⁽⁵⁾ PCV, ACL, ⁽⁷⁾ EVAP, EGR, SPK, AIS

5.7L (350") V8 2-Bbl. & 4-BbL.

⁽⁵⁾ PCV, ACL, EVAP, ⁽⁸⁾ EGR, SPK, AIS
EVAP-VC, CCS

7.5L (455") V8 2-Bbl.

⁽⁵⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, SPK-TCS, CCS

7.5L (455") 4-Bbl. ⁽⁴⁾

⁽⁵⁾ PCV, ACL, EVAP, EGR, ⁽⁹⁾ SPK, AIS
EVAP-VC, ⁽⁹⁾ SPK-TCS, CCS

7.5L (455") V8 4-Bbl. ⁽⁶⁾

⁽⁵⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, SPK-TCS, CCS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Federal only.

⁽⁴⁾

A/T only.

⁽⁵⁾	Type 4 closed.

⁽⁶⁾

M/T only.

⁽⁷⁾	Vapor canister type.

⁽⁸⁾	Dual Diaphragm EGR (Calif.).

⁽⁹⁾	Stage 1 engine only.

1974 Cadillac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

7.7L (472") V8 4-Bbl.

PCV, ACL, ⁽³⁾ EVAP, EGR, AP

8.2L (500") V8 4-Bbl.

PCV, ACL, ⁽³⁾ EVAP, EGR, AP

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Vapor canister type.

1974 Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

5.7L (350") V8 4-Bbl. California

PCV, EVAP, EGR, ⁽³⁾ SPK, AIS
EVAP-VC

5.7L (350") V8 4-Bbl. Federal

PCV, EVAP, EGR, ⁽³⁾ SPK, ⁽⁴⁾ AIS
EVAP-VC, ⁽⁵⁾ CCS

7.5L (454") V8 4-Bbl.

PCV, EVAP, EGR, ⁽³⁾ SPK, AIS
EVAP-VC

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾

M/T only.

⁽⁴⁾	M/T models & optional L-82 engine with A/T.

⁽⁵⁾	On base L-48 engine with A/T.

1974 Chevrolet - Except Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

2.3L (140") 4-Cyl. 1-Bbl. ⁽³⁾

⁽⁴⁾ PCV, ACL, ⁽⁵⁾ EVAP, EGR

2.3L (140") 4-Cyl. 1-Bbl. ⁽⁶⁾

⁽⁴⁾ PCV, ACL, EVAP, EGR, SPK
EVAP-VC, SPK-TCS

2.3L (140") 4-Cyl. 2-Bbl. ⁽³⁾

⁽⁴⁾ PCV, ACL, ⁽⁵⁾ EVAP, EGR

2.3L (140") 4-Cyl. 2-Bbl. ⁽⁶⁾

⁽⁴⁾ PCV, ACL, EVAP, EGR, SPK
EVAP-VC, SPK-TCS

4.2L (250") 6-Cyl. 1-Bbl. ⁽³⁾

⁽⁴⁾ PCV, ACL, ⁽⁵⁾ EVAP, EGR, AIS

4.2L (250") 6-Cyl. 1-Bbl. ⁽⁶⁾

⁽⁴⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, SPK-TCS

5.7L (350") V8 2-Bbl. ⁽³⁾⁽⁷⁾

⁽⁴⁾ PCV, ACL, ⁽⁵⁾ EVAP, EGR, AIS

5.7L (350") V8 2-Bbl. ⁽⁶⁾⁽⁷⁾

⁽⁴⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, ⁽⁷⁾ SPK-TCS

5.7L (350") V8 4-Bbl. ⁽³⁾

⁽⁴⁾ PCV, ⁽⁸⁾ ACL, ⁽⁵⁾ EVAP, EGR, AIS

5.7L (350") V8 4-Bbl. ⁽⁶⁾

⁽⁴⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, SPK-TCS

6.5L (400") V8 2-Bbl. ⁽³⁾⁽⁷⁾

⁽⁴⁾ PCV, ACL, ⁽⁵⁾ EVAP, EGR, AIS

7.5L (454") V8 4-Bbl. ⁽³⁾

⁽⁴⁾ PCV, ⁽⁸⁾ ACL, ⁽⁵⁾ EVAP, EGR, AIS

7.5L (454") V8 4-Bbl. ⁽⁶⁾

⁽⁴⁾ PCV, ⁽⁸⁾ ACL, EVAP, EGR, SPK, AIS
EVAP-VC, ⁽⁷⁾ SPK-TCS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California only.

⁽⁴⁾	Type 4 closed.

⁽⁵⁾	Vapor canister type.

⁽⁶⁾	Federal only.

⁽⁷⁾	On Federal models with M/T, on optional L82 engines with A/T & on all Calif. engines.

⁽⁸⁾

M/T only.

1974 Oldsmobile (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

4.2L (250") 6-Cyl. 1-Bbl. ⁽³⁾

⁽⁴⁾ PCV, ACL, EVAP, ⁽⁵⁾ EGR, AIS
EVAP-VC, CCS

4.2L (250") 6-Cyl. 1-Bbl. ⁽⁶⁾

⁽⁴⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, SPK-TCS, CCS

5.7L (350") V8 2-Bbl. ⁽³⁾

⁽⁴⁾ PCV, ACL, EVAP, EGR, SPK
EVAP-VC, CCS

5.7L (350") V8 4-Bbl.

⁽⁴⁾ PCV, ACL, EVAP, EGR, SPK
EVAP-VC, CCS

7.5L (455") V8 4-Bbl. ⁽⁷⁾

⁽⁴⁾ PCV, ⁽⁸⁾ ACL, EVAP, EGR, SPK
EVAP-VC, CCS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾

A/T only.

⁽⁴⁾	Type 4 closed.

⁽⁵⁾	California only.

⁽⁶⁾

M/T only.

⁽⁷⁾	Except Toronado.

⁽⁸⁾	Federal only.

1974 Pontiac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

4.2L (250") 6-Cyl. 1-Bbl. ⁽⁴⁾

⁽³⁾ PCV, ACL, EVAP, EGR, SPK, ⁽⁵⁾ AIS
EVAP-VC, CCS

4.2L (250") 6-Cyl. 1-Bbl. ⁽⁶⁾

⁽³⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, SPK-TCS, CCS

5.7L (350") V8 2-Bbl. ⁽⁴⁾

⁽³⁾ PCV, ACL, EVAP, EGR, SPK, ⁽⁵⁾ AIS
EVAP-VC, SPK-TCS, CCS

5.7L (350") V8 2-Bbl. ⁽⁶⁾

⁽³⁾ PCV, ACL, EVAP, EGR, SPK, AIS
EVAP-VC, SPK-TCS, CCS

5.7L (350") V8 4-Bbl. ⁽⁴⁾

⁽³⁾ PCV, ACL, EVAP, ⁽⁷⁾ EGR, SPK
EVAP-VC, SPK-TCS, CCS

2 or 3

5.7L (350") V8 4-Bbl. ⁽⁶⁾

⁽³⁾ PCV, ACL, EVAP, ⁽⁷⁾ EGR, SPK
EVAP-VC, SPK-TCS, CCS

2 or 3

6.5L (400") V8 2-Bbl. ⁽⁴⁾

⁽³⁾ PCV, ACL, EVAP, EGR, SPK
EVAP-VC, SPK-TCS, CCS

6.5L (400") V8 4-Bbl. ⁽⁴⁾

⁽³⁾ PCV, ACL, EVAP, ⁽⁷⁾ EGR, SPK
EVAP-VC, SPK-TCS, CCS

2 or 3

6.5L (400") V8 4-Bbl. ⁽⁶⁾

⁽³⁾ PCV, ACL, EVAP, ⁽⁷⁾ EGR, SPK
EVAP-VC, SPK-TCS, CCS

2 or 3

7.5L (455") V8 4-Bbl. ⁽⁴⁾

⁽³⁾ PCV, ACL, EVAP, ⁽⁷⁾ EGR, SPK
EVAP-VC, SPK-TCS, CCS

2 or 3

7.5L (455") V8 4-Bbl. ⁽⁶⁾

⁽³⁾ PCV, ACL, EVAP, ⁽⁷⁾ EGR, SPK
EVAP-VC, SPK-TCS, CCS

2 or 3

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Type 4 closed.

⁽⁴⁾

A/T only.

⁽⁵⁾	California only.

⁽⁶⁾

M/T only.

⁽⁷⁾	Dual diaphragm EGR valve (some Calif. models).

1974 Domestic Trucks & Vans

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

Light Duty Emissions (6000 GVWR Or Less)

4.1L (250") 6-Cyl. Carb.

PCV, ACL, EVAP, EGR, ⁽⁵⁾ SPK, ⁽⁴⁾ AIS
EVAP-VC, SPK-TCS, ⁽⁸⁾ CCS

5.7L (350") V8 2-Bbl. ⁽⁶⁾

PCV, ACL, EVAP, EGR, ⁽⁵⁾ SPK, AIS
EVAP-VC, SPK-TCS, CCS

5.7L (350") V8 4-Bbl.

PCV, ACL, EVAP, EGR, ⁽⁵⁾ SPK, AIS
EVAP-VC, SPK-TCS, CCS

7.4L (454") V8 4-Bbl.

PCV, ACL, EVAP, EGR, ⁽⁵⁾ SPK, ⁽⁷⁾ ⁽⁹⁾ AIS
EVAP-VC, SPK-TCS, ⁽⁸⁾ CCS

Heavy Duty Emissions (6001 GVWR Or More) ⁽³⁾

4.1L (250") 6-Cyl. Carb.

PCV, ⁽⁷⁾ ACL, ⁽⁷⁾ ⁽¹⁰⁾ EVAP

...

4.8L (292") 6-Cyl. Carb.

PCV, ⁽⁷⁾ ACL, ⁽⁷⁾ ⁽¹⁰⁾ EVAP

...

5.7L (350") V8 Carb.

PCV, ⁽⁷⁾ ACL, ⁽⁷⁾ ⁽¹⁰⁾ EVAP

...

6.0L (366") & 6.2L (379") V8 Carb.

PCV, ⁽⁷⁾ ACL

...

7.0L (427"/432") V8 Carb.

PCV, ⁽⁷⁾ ACL

...

7.4L (454") V8 Carb.

PCV, ⁽⁷⁾ ACL, ⁽⁷⁾ ⁽¹⁰⁾ EVAP

...

7.7L (473") V8 Carb.

PCV, ⁽⁷⁾ ACL

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - TRUCKS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	For emission applications on gasoline-powered motor homes 8501 GVWR or more & built on a motor home chassis, see appropriate CLASS "A" MOTOR HOMES table.

⁽⁴⁾	All models except Federal A/T.

⁽⁵⁾

M/T only.

⁽⁶⁾	Federal only.

⁽⁷⁾	Some models.

⁽⁸⁾	California only.

⁽⁹⁾	Federal with A/T.

⁽¹⁰⁾	Vapor canister type.

1974 Class "A" Motor Homes

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

All Engines Carb.

PCV, ⁽³⁾ ACL, ⁽²⁾ ⁽⁴⁾ EVAP

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Some California models.

⁽³⁾	Some models.

⁽⁴⁾	Vapor canister type.

1974 Imported Cars & Trucks

Model, Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

LUV 2-Bbl.

PCV, ACL, ⁽³⁾ EVAP, EGR, AIS
CRV

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - IMPORTED in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Crankcase storage type.

1975 Buick (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

3.8L (231") V6 2-Bbl.

⁽³⁾ PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, ⁽⁴⁾ SPK-DV

4.0L (250") 6-Cyl. 1-Bbl. ⁽⁴⁾⁽⁵⁾

⁽³⁾ PCV, ACL, EVAP, OC, FR, EGR, SPK, AIS, EFE
EVAP-VC, EFE-OTS

4.0L (250") 6-Cyl. 1-Bbl. ⁽⁶⁾

⁽³⁾ PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, EFE-OTS

4.3L (260") V8 2-Bbl. ⁽⁵⁾

⁽³⁾ PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, EFE
EVAP-VC, BP/EGR-BPS, SPK-CC

2 or 3

5.7L (350") V8 2-Bbl. & 4-Bbl.

⁽³⁾ PCV, ACL, ⁽⁷⁾ EVAP, OC, FR, EGR, SPK, ⁽⁸⁾ AIS, ⁽⁹⁾ EFE

6.5L (400") V8 2-Bbl. & 4-Bbl. ⁽⁵⁾

⁽³⁾ PCV, ACL, ⁽⁷⁾ EVAP, OC, FR, EGR, SPK, EFE

7.5L (455") V8 4-Bbl. ⁽⁵⁾

⁽³⁾ PCV, ACL, ⁽⁷⁾ EVAP, OC, FR, EGR, SPK, EFE

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Type 4 closed.

⁽⁴⁾	California only.

⁽⁵⁾

A/T only.

⁽⁶⁾	Federal only.

⁽⁷⁾	Vapor canister type.

⁽⁸⁾	4-Bbl. Century Wagon & LeSabre Sedan/Coupe (Calif. only).

⁽⁹⁾	Except 4-bbl. with AIS.

1975 Cadillac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

8.2L (500") V8 EFI

PCV, ACL, ⁽³⁾ EVAP, OC, FR, EGR, ⁽⁴⁾ AP

8.2L (500") V8 4-Bbl.

PCV, ACL, ⁽³⁾ EVAP, OC, FR, ⁽⁴⁾ EGR, ⁽⁴⁾ AP, EFE

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Vapor canister type.

⁽⁴⁾	Used on all Calif. models & all commercial chassis with 145-amp. alternator.

1975 Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

5.7L (350") V8 4-Bbl.

PCV, EVAP, OC, FR, EGR, AIS, EFE
EVAP-VC

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

1975 Chevrolet - Except Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

2.3L (140") 4-Cyl. 1-Bbl. ⁽⁴⁾

⁽⁵⁾ PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, ⁽⁶⁾ SPK-TCS

2.3L (140") 4-Cyl. 2-Bbl.

⁽⁵⁾ PCV, ACL, EVAP, OC, FR, EGR, SPK, ⁽⁷⁾ AIS, EFE
EVAP-VC, ⁽⁷⁾ SPK-TCS, ⁽⁸⁾ CCS

4.2L (250") 6-Cyl. 1-Bbl. ⁽⁷⁾⁽⁸⁾

⁽⁵⁾ PCV, ACL, ⁽⁹⁾ EVAP, OC, FR, EGR, AIS, EFE

4.2L (250") 6-Cyl. 1-Bbl. ⁽⁴⁾

⁽⁵⁾ PCV, ACL, EVAP, OC, FR, EGR, EFE
EVAP-VC, CCS

4.3L (262") V8 2-Bbl.

⁽⁵⁾ PCV, ACL, EVAP, OC, FR, EGR, ⁽⁷⁾ AIS, EFE
EVAP-VC, ⁽⁴⁾ CCS

5.7L (350") V8 2-Bbl. ⁽⁴⁾

⁽⁵⁾ PCV, ACL, EVAP, OC, FR, EGR, EFE
EVAP-VC, CCS

5.7L (350") V8 4-Bbl. ⁽¹⁰⁾

⁽⁵⁾ PCV, ACL, ⁽⁸⁾ EVAP, OC, FR, EGR, AIS, EFE

5.7L (350") V8 4-Bbl. ⁽³⁾

⁽⁵⁾ PCV, ACL, EVAP, OC, FR, EGR, ⁽⁷⁾ AIS, EFE
EVAP-VC, ⁽⁴⁾ CCS

6.5L (400") V8 4-Bbl. ⁽⁸⁾

⁽⁵⁾ PCV, ACL, EVAP, OC, FR, EGR, ⁽⁷⁾ ⁽¹¹⁾ AIS, EFE
EVAP-VC, ⁽⁴⁾ CCS

7.5L (454") V8 4-Bbl. ⁽⁴⁾⁽⁸⁾

⁽⁵⁾ PCV, ⁽⁴⁾ ACL, EVAP, OC, FR, EGR, EFE
EVAP-VC, CCS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	RPO LM-1 (155 HP) only.

⁽⁴⁾	Federal only.

⁽⁵⁾	Type 4 closed.

⁽⁶⁾	All 110 HP & Calif. 90 HP engines only.

⁽⁷⁾	California only.

⁽⁸⁾	A/T only (some models).

⁽⁹⁾	Vapor canister type.

⁽¹⁰⁾	RPO L48 (165 HP) & L82 (205 HP) only.

⁽¹¹⁾	Catalyst air injection.

1975 Oldsmobile (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

3.8L (231") V6 2-Bbl.

⁽³⁾ PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, ⁽⁴⁾ SPK-TVS

4.2L (250") 6-Cyl. 1-Bbl.

⁽³⁾ PCV, ACL, ⁽⁵⁾ EVAP, OC, FR, EGR, ⁽⁶⁾ AIS, EFE

4.3L (260) V8 2-Bbl.

⁽³⁾ PCV, ACL, ⁽⁵⁾ EVAP, OC, FR, BP/EGR, SPK, EFE

2 or 3

5.7L (350) V8 2-Bbl. ⁽⁷⁾

⁽³⁾ PCV, ACL, EVAP, OC, FR, EGR, SPK
EVAP-VC, SPK-TVS

5.7L (350") V8 4-Bbl. Cutlass & Eighty-Eight ⁽⁶⁾⁽⁸⁾

⁽³⁾ PCV, ACL, ⁽⁵⁾ EVAP, OC, FR, BP/EGR, SPK

2 or 3

5.7L (350") V8 4-Bbl. Cutlass & Eighty-Eight ⁽⁷⁾⁽⁸⁾

⁽³⁾ PCV, ACL, EVAP, OC, FR, BP/EGR, SPK
EVAP-VC, ⁽⁴⁾ SPK-TVS

2 or 3

5.7L (350") V8 4-Bbl. Omega ⁽⁸⁾

⁽³⁾ PCV, ACL, EVAP, OC, FR, EGR, SPK, ⁽⁷⁾ EFE
EVAP-VC, SPK-TVS

6.5L (400") V8 2-Bbl. & 4-Bbl. ⁽⁷⁾⁽⁸⁾

⁽³⁾ PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, SPK-DV

7.5L (455") V8 4-Bbl. ⁽⁶⁾⁽⁸⁾

⁽³⁾ PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, EFE
EVAP-VC, SPK-TVS

2 or 3

7.5L (455") V8 4-Bbl. ⁽⁷⁾⁽⁸⁾

⁽³⁾ PCV, ACL, EVAP, OC, FR, EGR, SPK
EVAP-VC, ⁽⁹⁾ SPK-TVS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Type 4 closed.

⁽⁴⁾	Early production only.

⁽⁵⁾	Vapor canister type.

⁽⁶⁾	California only.

⁽⁷⁾	Federal only.

⁽⁸⁾

A/T only.

⁽⁹⁾	Except late production Toronado.

1975 Pontiac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

2.3L (140") 4-Cyl. 1-Bbl. ⁽³⁾

⁽⁴⁾ PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, ⁽⁵⁾ SPK-TCS, CCS

2.3L (140") 4-Cyl. 2-Bbl. ⁽⁶⁾

⁽⁴⁾ PCV, ACL, ⁽⁷⁾ EVAP, OC, FR, EGR, AIS, EFE

2.3L (140") 4-Cyl. 2-Bbl. ⁽³⁾

⁽⁴⁾ PCV, ACL, EVAP, OC, FR, EGR, EFE
EVAP-VC, CCS

4.2L (250") 6-Cyl. 1-Bbl. ⁽⁶⁾⁽⁸⁾

⁽⁴⁾ PCV, ACL, ⁽⁷⁾ EVAP, OC, FR, EGR, AIS, EFE

4.2L (250") 6-Cyl. 1-Bbl. ⁽³⁾

⁽⁴⁾ PCV, ACL, ⁽⁷⁾ EVAP, OC, FR, EGR, EFE

4.3L (260") V8 2-Bbl. ⁽⁶⁾⁽⁸⁾

⁽⁴⁾ PCV, ACL, EVAP, OC, FR, BP/EGR, AIS, EFE
EVAP-VC, BP/EGR-BPS

2 or 3

4.3L (260") V8 2-Bbl. ⁽³⁾

⁽⁴⁾ PCV, ACL, EVAP, OC, FR, BP/EGR, EFE
EVAP-VC, BP/EGR-BPS

2 or 3

5.7L (350") V8 2-Bbl. ⁽³⁾⁽⁸⁾

⁽⁴⁾ PCV, ACL, EVAP, ⁽⁹⁾ BP/EGR, ⁽¹⁰⁾ EFE
EVAP-VC, ⁽¹¹⁾ BP/EGR-BPS

1 , 2 or 3

5.7L (350") V8 4-Bbl. ⁽⁸⁾

⁽⁴⁾ PCV, ACL, EVAP, OC, FR, ⁽⁹⁾ BP/EGR, ⁽⁶⁾ AIS, ⁽¹⁰⁾ EFE
EVAP-VC, ⁽¹¹⁾ BP/EGR-BPS

1 , 2 or 3

6.5L (400") V8 2-Bbl. ⁽³⁾⁽⁸⁾

⁽⁴⁾ PCV, ACL, EVAP, OC, FR, BP/EGR, EFE
EVAP-VC, BP/EGR-BPS

2 or 3

6.5L (400") V8 4-Bbl. ⁽⁸⁾

⁽⁴⁾ PCV, ACL, EVAP, OC, FR, BP/EGR, ⁽⁶⁾ AIS, ⁽³⁾ EFE

2 or 3

7.5L (455") V8 4-Bbl. ⁽⁸⁾

⁽⁴⁾ PCV, ACL, EVAP, OC, FR, BP/EGR, EFE
EVAP-VC, BP/EGR-BPS

2 or 3

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Federal only.

⁽⁴⁾	Type 4 closed.

⁽⁵⁾

M/T only.

⁽⁶⁾	California only.

⁽⁷⁾	Vapor canister type.

⁽⁸⁾

A/T only.

⁽⁹⁾	Conventional EGR on Ventura.

⁽¹⁰⁾	Firebird and Ventura only.

⁽¹¹⁾	Except Ventura.

1975 Domestic Trucks & Vans

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

Light Duty Emissions (6000 GVWR Or Less)

4.1L (250") 6-Cyl. Carb.

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, SPK-TCS, CCS

5.7L (350") V8 2-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, SPK-TCS, CCS

5.7L (350") V8 4-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, SPK, AIS, EFE
EVAP-VC, SPK-TCS, CCS

7.4L (454") V8 4-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, SPK-TCS, CCS

Heavy Duty Emissions (6001 GVWR Or More) ⁽³⁾

4.1L (250") 6-Cyl. Carb.

PCV, ACL, EFE
CCS

...

4.8L (292") 6-Cyl. Carb.

PCV, ACL, ⁽⁴⁾ ⁽⁵⁾ EVAP
CCS

...

5.7L (350") V8 4-Bbl.

PCV, ACL, ⁽⁴⁾ EVAP, ⁽⁴⁾ AIS
EVAP-VC, ⁽⁶⁾ CCS

...

6.0L (366") & 7.0L (427") V8 Carb.

PCV, ⁽⁴⁾ AIS

...

6.5L (400") V8 4-Bbl.

PCV, ACL, ⁽⁴⁾ EVAP, ⁽⁴⁾ AIS
EVAP-VC, ⁽⁶⁾ CCS

...

7.4L (454") V8 4-Bbl.

PCV, ACL, ⁽⁴⁾ EVAP, ⁽⁴⁾ EGR, ⁽⁴⁾ AIS
EVAP-VC, ⁽⁶⁾ CCS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - TRUCKS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	For emission applications on gasoline-powered motor homes 8501 GVWR or more & built on a motor home chassis, see appropriate CLASS "A" MOTOR HOMES table.

⁽⁴⁾	California only.

⁽⁵⁾	Vapor canister type.

⁽⁶⁾	Federal only.

1975 Class "A" Motor Homes

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

EGR Test No.

All Engines Carb.

PCV, ⁽³⁾ ACL, ⁽²⁾ ⁽⁴⁾ EVAP

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	Some California models.

⁽³⁾	Some models.

⁽⁴⁾	Vapor canister type.

1975 Imported Cars & Trucks

Model, Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

LUV 2-Bbl.

PCV, ACL, ⁽³⁾ EVAP, ⁽⁴⁾ EGR, AIS
CRV

1TEST 1

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - IMPORTED in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Crankcase storage type.

⁽⁴⁾	California emissions.

1976 Buick (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

3.8L (231") V6 2-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, EFE
EVAP-VC, EGR-PVS, EFE-PVS, ⁽³⁾ A/C-ISUS

4.3L (260") V8 2-Bbl. ⁽⁴⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, EFE
EVAP-VC, BP/EGR-BPS, BP/EGR-OVS, EFE-PVS

2 or 3

4.3L (260") V8 2-Bbl. ⁽⁵⁾

PCV, ACL, EVAP, OC, FR, BP/EGR
EVAP-VC, BP/EGR-BPS

2 or 3

4.3L (260") V8 2-Bbl. ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, BP/EGR
EVAP-VC, BP/EGR-BPS, BP/EGR-TVC

2 or 3

5.7L (350") V8 2-Bbl. & 4-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, SPK-DPVS, EGR-PVS

7.5L (455") V8 4-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, EGR-PVS, SPK-DPVS, EFE-PVS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Skylark with A/C.

⁽⁴⁾	Early production (Calif. only).

⁽⁵⁾	Late production (Calif. only).

⁽⁶⁾	Federal only.

1976 Cadillac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

5.7L (350") V8 EFI

PCV, EVAP, OC, FR, BP/EGR, AP
EVAP-VC, BP/EGR-BPS

2 or 3

8.2L (500") V8 EFI

PCV, EVAP, OC, FR, BP/EGR, AP
EVAP-VC, BP/EGR-BPS

2 or 3

8.2L (500") V8 4-Bbl.

PCV, ACL, ⁽³⁾ EVAP, OC, FR, EGR, ⁽⁴⁾ AP, EFE

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Vapor canister type.

⁽⁴⁾	Used on all Calif. models & all commercial chassis with 145-amp. alternator.

1976 Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

5.7L (350") V8 4-Bbl. California

PCV, ACL, EVAP, OC, FR, EGR, AIS, EFE
EVAP-VC

5.7L (350") V8 4-Bbl. Federal

PCV, ACL, EVAP, OC, FR, EGR, ⁽³⁾ AIS, EFE
EVAP-VC, ⁽⁴⁾ CCS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	On L-82 & high altitude engines only.

⁽⁴⁾	On L-48 engine only.

1976 Chevrolet - Except Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

1.4L (86") 4-Cyl. 1-Bbl. ⁽³⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AIS
EVAP-VC, EGR-TVS, SPK-DVDV

1.4L (86") 4-Cyl. 1-Bbl. ⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR
EVAP-VC, CCS

1.6L (98") 4-Cyl. 1-Bbl. ⁽³⁾

PCV, ACL, EVAP, OC, FR, EGR, AIS
EVAP-VC, EGR-TVS, SPK-DVDV

1.6L (98") 4-Cyl. 1-Bbl. ⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR
EVAP-VC, CCS

2.0L (122") Cosworth 4-Cyl. EFI

PCV, ⁽⁵⁾ EVAP, OC, FR, AIS

2.3L (140") 4-Cyl. 1-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, SPK
EVAP-VC, ⁽⁶⁾ SPK-TCS, CCS

2.3L (140") 4-Cyl. 2-Bbl. ⁽³⁾

PCV, ACL, ⁽⁵⁾ EVAP, OC, FR, EGR, AIS

2.3L (140") 4-Cyl. 2-Bbl. ⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR
EVAP-VC, CCS

4.2L (250") 6-Cyl. 1-Bbl. ⁽³⁾⁽⁷⁾

PCV, ACL, EVAP, OC, FR, EGR, AIS, EFE
EVAP-VC, EGR-TVS

4.2L (250") 6-Cyl. 1-Bbl. ⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR, EFE
EVAP-VC, CCS

4.3L (262") V8 2-Bbl. ⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR, EFE
EVAP-VC, CCS

5.0L (305") V8 2-Bbl. ⁽³⁾⁽⁷⁾

PCV, ACL, EVAP, OC, FR, EGR, ⁽⁸⁾ AIS, EFE
EVAP-VC, EGR-TVS

5.0L (305") V8 2-Bbl. ⁽⁴⁾⁽⁷⁾

PCV, ACL, EVAP, OC, FR, EGR, EFE
EVAP-VC, EGR-TVS, CCS

5.7L (350") V8 2-Bbl. ⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR, EFE
EVAP-VC, EGR-TVS, CCS

5.7L (350") V8 4-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, ⁽⁹⁾ AIS, EFE
EVAP-VC, EGR-TVS

6.5L (400") V8 4-Bbl. ⁽⁷⁾

PCV, ACL, EVAP, OC, FR, EGR, AIS, EFE
EVAP-VC, EGR-TVS

7.5L (454") V8 4-Bbl. ⁽⁴⁾⁽⁷⁾

PCV, ACL, EVAP, OC, FR, EGR, AIS, EFE
EVAP-VC, EGR-TVS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California only.

⁽⁴⁾	Federal only.

⁽⁵⁾	Vapor canister type.

⁽⁶⁾

M/T only.

⁽⁷⁾

A/T only.

⁽⁸⁾	Except VINs Q & U.

⁽⁹⁾

L82 only.

1976 Oldsmobile (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

2.3L (140") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, SPK, ⁽³⁾ AIS
EVAP-VC, SPK-DPVS

3.8L (231") V6 2-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, EGR-PVS, EFE-PVS

4.2L (250") 6-Cyl. 1-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, SPK, ⁽³⁾ ⁽⁴⁾ AIS, EFE
EVAP-VC, EGR-PVS

4.3L (260") V8 2-Bbl. ⁽⁵⁾⁽⁶⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK
ACL-TCV, EVAP-VC, BP/EGR-TCVLV

2 or 3

4.3L (260") V8 2-Bbl.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽⁷⁾ EFE
ACL-TCV, EVAP-VC, BP/EGR-TCVLV, BP/EGR-BPS, SPK-AVM, ⁽⁷⁾ EFE-PVS

2 or 3

4.3L (260") V8 2-Bbl. ⁽⁸⁾⁽³⁾⁽⁴⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK
ACL-TCV, EVAP-VC, BP/EGR-BPS, BP/EGR-TCVLV

2 or 3

5.7L (350") V8 4-Bbl. ⁽⁵⁾⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, EGR-PVS, ⁽⁹⁾ SPK-DPVS, EFE-PVS

5.7L (350") V8 4-Bbl. ⁽¹⁰⁾⁽⁵⁾⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK
EVAP-VC, EGR-TCVLV

5.7L (350") V8 4-Bbl. ⁽¹¹⁾⁽³⁾⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, EGR-PVS, ⁽⁹⁾ SPK-DPVS, EFE-PVS

5.7L (350") V8 4-Bbl. ⁽¹⁰⁾⁽³⁾⁽⁴⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK
EVAP-VC, BP/EGR-BPS, BP/EGR-TCVLV, SPK-DV

2 or 3

5.7L (350") V8 4-Bbl. ⁽¹²⁾⁽⁵⁾⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK
EVAP-VC, EGR-TCVLV, SPK-DPVS

2 or 3

7.5L (455") V8 4-Bbl. ⁽⁵⁾⁽⁴⁾⁽¹⁴⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK
EVAP-VC, EGR-TCVLV, SPK-DPVS

2 or 3

7.5L (455") V8 4-Bbl. ⁽³⁾⁽⁴⁾⁽¹⁴⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, EFE
EVAP-VC, BP/EGR-BPS, BP/EGR-TCVLV, SPK-DV, SPK-DPVS, EFE-PVS

7.5L (455") V8 4-Bbl. ⁽¹³⁾⁽⁵⁾⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK
EVAP-VC, EGR-TCVLV

7.5L (455") V8 4-Bbl. ⁽¹³⁾⁽³⁾⁽⁴⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, EFE
EVAP-VC, BP/EGR-BPS, BP/EGR-PVS, BP/EGR-TCVLV, SPK-DPVS, EFE-PVS

2 or 3

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California only.

⁽⁴⁾

A/T only.

⁽⁵⁾	Federal only.

⁽⁶⁾

M/T only.

⁽⁷⁾	First type.

⁽⁸⁾	Second type.

⁽⁹⁾	With A/C only.

⁽¹⁰⁾	Cutlass & Eighty-Eight only.

⁽¹¹⁾	Omega only.

⁽¹²⁾	Models with 2.41 axle.

⁽¹³⁾	Toronado only.

⁽¹⁴⁾	Except Toronado.

1976 Pontiac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

2.3L (140") 4-Cyl.. 1Bbl. ⁽³⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AIS, EFE
EVAP-VC, CCS, SPK-TCS

2.3L (140") 4-Cyl. 2-Bbl. ⁽⁴⁾

PCV, ACL, ⁽⁵⁾ EVAP, OC, FR, EGR, SPK, AIS, EFE

2.3L (140") 4-Cyl. 2-Bbl. ⁽³⁾

PCV, ACL, EVAP, OC, FR, EGR, EFE
EVAP-VC, CCS

3.8L (231") V6 2-Bbl. ⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR, EFE
EVAP-VC, SPK-TCS

3.8L (231") V6 2-Bbl. ⁽³⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, SPK-PVS, SPK-DV

4.2L (250") 6-Cyl. 1-Bbl. ⁽⁴⁾⁽⁶⁾

PCV, ACL, ⁽⁵⁾ EVAP, OC, FR, EGR, AIS, EFE

4.2L (250") 6-Cyl. 1-Bbl. ⁽³⁾

PCV, ACL, ⁽⁵⁾ EVAP, OC, FR, EGR, EFE

4.3L (260") V8 2-Bbl. ⁽⁴⁾⁽⁶⁾⁽⁷⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, EFE
EVAP-VC, BP/EGR-BPS, BP/EGR-PVS, BP/EGR-TCV, EFE-PVS

2 or 3

4.3L (260") V8 2-Bbl. ⁽⁴⁾⁽⁶⁾⁽⁸⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK
EVAP-VC, BP/EGR-BPS, BP/EGR-PVS, BP/EGR-TCV

2 or 3

4.3L (260") V8 2-Bbl. ⁽³⁾⁽⁶⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK
EVAP-VC, BP/EGR-BPS, BP/EGR-CV, SPK-AVM

2 or 3

4.3L (260") V8 2-Bbl. ⁽³⁾⁽⁹⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK
EVAP-VC, BP/EGR-BPS, BP/EGR-CV

2 or 3

5.7L (350") V8 4-Bbl. ⁽⁴⁾⁽⁶⁾⁽¹⁰⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, AIS
EVAP-VC, BP/EGR-BPS, SPK-DPVS, SPK-DV

2 or 3

5.7L (350") V8 2-Bbl. ⁽³⁾⁽⁶⁾⁽¹⁰⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, SPK-DPVS, SPK-DV, EFE-PVS

5.7L (350") V8 2-Bbl. ⁽⁶⁾⁽¹¹⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, EGR-PVS, SPK-DPVS

5.7L (350") V8 2-Bbl. ⁽⁶⁾⁽¹²⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, EGR-PVS, EFE-PVS

5.7L (350") V8 4-Bbl. ⁽⁶⁾⁽¹¹⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, EFE
EVAP-VC, BP/EGR-PVS, SPK-DPVS, EFE-PVS

2 or 3

5.7L (350") V8 4-Bbl. ⁽⁶⁾⁽¹²⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, EFE
EVAP-VC, BP/EGR-PVS, EFE-PVS

2 or 3

6.5L (400") V8 2-Bbl. ⁽³⁾⁽⁶⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, SPK-DPVS, SPK-DV, EFE-PVS

6.5L (400") V8 4-Bbl. ⁽⁴⁾⁽⁶⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, AIS
EVAP-VC, BP/EGR-BPS, SPK-DPVS, SPK-DV

2 or 3

6.5L (400") V8 4-Bbl. ⁽³⁾⁽⁶⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, SPK-DPVS, SPK-DV, EFE-PVS

6.5L (400") V8 4-Bbl. ⁽³⁾⁽⁹⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, EGR-PVS, SPK-DPVS, EFE-PVS

7.5L (455") V8 4-Bbl. ⁽⁴⁾⁽⁶⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, EFE
EVAP-VC, BP/EGR-BPS, SPK-DPVS, EFE-PVS

2 or 3

7.5L (455") V8 4-Bbl. ⁽³⁾⁽⁶⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, SPK-DPVS, SPK-AVM, EFE-PVS

7.5L (455") V8 4-Bbl. ⁽³⁾⁽⁹⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, EGR-PVS, SPK-DPVS, EFE-PVS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Federal only.

⁽⁴⁾	California only.

⁽⁵⁾	Vapor canister type.

⁽⁶⁾

A/T only.

⁽⁷⁾	Early production California 260" V8 engine.

⁽⁸⁾	Late production California 260" V8 engine.

⁽⁹⁾

M/T only.

⁽¹⁰⁾	Except Ventura.

⁽¹¹⁾	Ventura with A/C.

⁽¹²⁾	Ventura without A/C.

1976 Domestic Trucks & Vans

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

Light Duty Emissions (6000 GVWR Or Less)

4.1L (250") 6-Cyl. Carb.

PCV, ACL, EVAP, ⁽⁴⁾ OC, FR, EGR, ⁽⁵⁾ SPK, EFE
EVAP-VC, SPK-TCS, ⁽⁵⁾ CCS

1 v

5.7L (350") V8 2-Bbl. ⁽⁵⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, SPK-TCS, CCS

5.7L (350") V8 4-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, ⁽⁵⁾ SPK, ⁽⁴⁾ AIS, EFE
EVAP-VC, SPK-TCS, ⁽⁵⁾ CCS

7.4L (454") V8 4-Bbl. ⁽⁵⁾

PCV, ACL, EVAP, EFE
EVAP-VC, CCS

Heavy Duty Emissions (6001 GVWR Or More) ⁽³⁾

4.1L (250") 6-Cyl. Carb.

PCV, ACL, ⁽⁴⁾ EVAP
EVAP-VC, CCS

...

4.8L (292") 6-Cyl. Carb.

PCV, ⁽⁴⁾ ACL, ⁽⁴⁾ EVAP
EVAP-VC, CCS

...

5.7L (350") V8 4-Bbl.

PCV, ACL, ⁽⁴⁾ EVAP, ⁽⁴⁾ AIS
EVAP-VC, CCS

...

6.0L (366") & 7.0L (427") V8 Carb.

PCV, ⁽⁴⁾ AIS

...

6.5L (400") V8 4-Bbl.

PCV, ACL, ⁽⁴⁾ EVAP, ⁽⁴⁾ AIS
EVAP-VC, CCS

...

7.4L (454") V8 4-Bbl.

PCV, ACL, ⁽⁴⁾ EVAP, ⁽⁴⁾ EGR, ⁽⁴⁾ AIS
EVAP-VC, CCS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - TRUCKS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	For emission applications on gasoline-powered motor homes 8501 GVWR or more & built on a motor home chassis, see appropriate CLASS "A" MOTOR HOMES table.

⁽⁴⁾	California only.

⁽⁵⁾	Federal only.

1976 Class "A" Motor Homes

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

454" V8 Carb.

PCV, ACL, ⁽³⁾ EVAP, ⁽³⁾ EGR, ⁽³⁾ AIS
EVAP-VC, CCS

455" V8 Carb.

PCV, ACL, ⁽³⁾ EVAP
EVAP-VC, CCS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - TRUCKS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California emissions only.

1976 Imported Cars & Trucks

Model, Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

LUV 2-Bbl.

PCV, ACL, ⁽³⁾ EVAP, ⁽⁴⁾ ⁽⁵⁾ OC, ⁽⁴⁾ FR, EGR, AIS
CRV

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - IMPORTED in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	1976-80 crankcase storage type; 1981 vapor canister type.

⁽⁴⁾	California emissions.

⁽⁵⁾	Except some Federal models.

1977 Buick (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

3.8L (231") V6 2-Bbl.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽³⁾ AIS, EFE
EVAP-VC, BP/EGR-TVS, ⁽⁴⁾ SPK-AVM, EFE-CKV, EGR-TVS

2 or 3

4.9L (301") V8 2-Bbl.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK.
EVAP-VC, SPK-DSVMV, SPK-DTVS, ⁽⁵⁾ SPK-DVDV, EGR-CKV, EFE-TVS

2 or 3

5.0L (305") V8 2-Bbl.

PCV, ACL, EVAP, OC, FR, BP/EGR
EVAP-VC, BP/EGR-TVS, EFE-CKV, EFE-TVS

2 or 3

5.7L (350") V8 4-Bbl. (VIN H & J)

PCV, ACL, EVAP, OC, FR, BP/EGR, EFE
EVAP-VC, BP/EGR-TVS, EFE-TVS

2 or 3

5.7L (350") V8 4-Bbl. (VIN L)

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽⁶⁾ AIS, EFE
EVAP-VC, BP/EGR-TVS, ⁽⁶⁾ SPK-DTVS, EFE-CKV, EFE-TVS

2 or 3

5.7L (350") V8 4-Bbl. (VIN R)

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽³⁾ AIS, EFE
EVAP-VC, BP/EGR-TVC, SPK-DTVS

2 or 3

6.6L (403") V8 4-Bbl.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽⁶⁾ AIS, EFE
EVAP-VC, ⁽⁶⁾ BP/EGR-DTVSW, BP/EGR-TCV, SPK-DTVS, ⁽⁷⁾ SPK-AVM

2 or 3

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California & high altitude only.

⁽⁴⁾	Economy Special only.

⁽⁵⁾	A/T with A/C only.

⁽⁶⁾	California only.

⁽⁷⁾	Federal only.

1977 Cadillac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

5.7L (350") V8 EFI

PCV, EVAP, OC, FR, BP/EGR, SPK, AP
EVAP-VC, ⁽³⁾ SPK-DV

2 or 3

7.0L (425") V8 EFI

PCV, EVAP, OC, FR, BP/EGR, SPK
EVAP-VC, ⁽³⁾ SPK-DV

2 or 3

7.0L (425") V8 4-Bbl.

PCV, ACL, ⁽⁴⁾ EVAP, OC, FR, BP/EGR, SPK, ⁽³⁾ AP

2 or 3

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California only.

⁽⁴⁾	Vapor canister type.

1977 Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

5.7L (350") V8 4-Bbl. California

PCV, ACL, EVAP, OC, FR, EGR, AIS, EFE
EVAP-VC

5.7L (350") V8 4-Bbl. Federal

PCV, ACL, EVAP, OC, FR, EGR, ⁽³⁾ AIS, EFE
EVAP-VC, ⁽⁴⁾ CCS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	On L-82 & high altitude engines only.

⁽⁴⁾	On L-48 engine only.

1977 Chevrolet - Except Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

1.4L (86") 4-Cyl. 1-Bbl.

PCV, ACL, ⁽³⁾ EVAP, OC, FR, EGR

1.6L (98") 4-Cyl. 1-Bbl.

PCV, ACL, ⁽³⁾ EVAP, OC, FR, EGR, ⁽⁴⁾ AIS

2.3L (140") 4-Cyl. 2-Bbl.

PCV, ACL, ⁽³⁾ EVAP, OC, FR, EGR, AIS

4.2L (250") 6-Cyl. 1-Bbl.

PCV, ACL, ⁽³⁾ EVAP, OC, FR, EGR, ⁽⁴⁾ AIS, EFE

5.0L (305") V8 2-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, SPK, ⁽⁵⁾ AIS, EFE
EVAP-VC, ⁽⁴⁾ SPK-DV

5.7L (350") V8 4-Bbl.

PCV, ACL, ⁽³⁾ EVAP, OC, FR, EGR, ⁽⁵⁾ AIS, EFE

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Vapor canister type.

⁽⁴⁾	California only.

⁽⁵⁾	California, high altitude & L82.

1977 Oldsmobile (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

2.3L (140") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, SPK, AIS, EFE
EVAP-VC, SPK-TVS

3.8L (231") V6 2-Bbl.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽⁴⁾ AIS, EFE
EVAP-VC, BP/EGR-TVS, ⁽³⁾ SPK-AVM, ⁽⁵⁾ SPK-TCS, ⁽⁶⁾ EFE-CV, EFE-TVS

2 or 3

4.3L (260") V8 2-Bbl.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, EFE
EVAP-VC, BP/EGR-TCVLV, ⁽⁷⁾ BP/EGR-DV, ⁽⁷⁾ SPK-AVM

2 or 3

5.0L (305") V8 2-Bbl.

PCV, ACL, ⁽⁷⁾ EVAP, ⁽⁷⁾ OC, FR, BP/EGR, SPK, ⁽³⁾ AIS, EFE
EVAP-VC, ⁽⁷⁾ BP/EGR-TVS, ⁽⁴⁾ SPK-DV

2 or 3

5.7L (350") V8 4-Bbl. (VIN L)

PCV, ⁽⁴⁾ ACL, ⁽⁷⁾ EVAP, ⁽⁷⁾ OC, FR, EGR, SPK, ⁽⁴⁾ AIS, EFE
EVAP-VC, EGR-TVS, ⁽⁷⁾ EFE-CV

5.7L (350") V8 4-Bbl. (VIN R)

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽³⁾ AIS
EVAP-VC, ⁽³⁾ BP/EGR-TVS, BP/EGR-TCVLV, ⁽³⁾ SPK-TVS

2 or 3

6.6L (403") V8 4-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, SPK, ⁽³⁾ AIS
EVAP-VC, EGR-TVS, EGR-TCVLV, EGR-TVS, ⁽⁴⁾ SPK-TVS, SPK-DV, SPK-EST, ⁽⁷⁾ SPK-AVM

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California only.

⁽⁴⁾	California & high altitude only.

⁽⁵⁾	California M/T only.

⁽⁶⁾	California & Federal only.

⁽⁷⁾	Federal only.

1977 Pontiac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

2.3L (140") 4-Cyl. 1-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, SPK, AIS
EVAP-VC, EGR-TVS, ⁽³⁾ SPK-TVS, SPK-DV

2.5L (151") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, OC, FR, ⁽⁴⁾ EGR, ⁽⁶⁾ BP/EGR, SPK, ⁽⁶⁾ AP, ⁽⁵⁾ PAIR, EFE
EVAP-VC, EGR-TVS, SPK-TVS, SPK-DV, EFE-TVS

2 or 3

3.8L (231") V6 2-Bbl.

PCV, ACL, EVAP, OC, FR, BP/EGR, ⁽⁶⁾ SPK, ⁽³⁾ AIS, EFE
EVAP-VC, BP/EGR-TVS, ⁽⁶⁾ SPK-TCS, EFE-CV, EFE-TVS

2 or 3

5.0L (301") V8 2-Bbl.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, EFE
EVAP-VC, ⁽⁷⁾ SPK-TVS, ⁽⁷⁾ SPK-DV, ⁽⁷⁾ SPK-DSVMV, EFE-CV, EFE-TVS

2 or 3

5.0L (305") V8 2-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, EGR-TVS, EFE-CV, EFE-TVS

5.7L (350") V8 4-Bbl. (VIN L)

PCV, ACL, EVAP, OC, FR, BP/EGR, ⁽³⁾ AIS, EFE
EVAP-VC, BP/EGR-TVS, EFE-CV, EFE-TVS

2 or 3

5.7L (350") V8 4-Bbl. (VIN P)

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, EFE
EVAP-VC, BP/EGR-TVS, SPK-TVS, SPK-DV, EFE-CV

2 or 3

5.7L (350") V8 4-Bbl. (VIN R)

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽³⁾ AIS
EVAP-VC, ⁽⁶⁾ BP/EGR-TVS, ⁽⁶⁾ SPK-TVS, ⁽⁴⁾ SPK-DV

2 or 3

6.5L (400") V8 4-Bbl.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽⁸⁾ EFE
EVAP-VC, BP/EGR-TVS, SPK-TVS, EFE-CV, EFE-TVS

2 or 3

6.5L (403") V8 4-Bbl.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽⁶⁾ AIS
EVAP-VC, ⁽³⁾ BP/EGR-TVS, SPK-TVS, ⁽⁹⁾ SPK-DV

2 or 3

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California and high altitude.

⁽⁴⁾	Federal and high altitude.

⁽⁵⁾	Some Federal.

⁽⁶⁾	California only.

⁽⁷⁾

With A/C.

⁽⁸⁾	Except Firebird.

⁽⁹⁾	Federal only.

1977 Domestic Trucks & Vans

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

Light Duty Emissions (6000 GVWR Or Less)

4.1L (250") 6-Cyl. Carb.

PCV, ACL, ⁽⁴⁾ EVAP, OC, FR, ⁽⁵⁾ EGR, EFE

5.0L (305") V8 Carb.

PCV, ACL, ⁽⁴⁾ EVAP, OC, FR, ⁽⁵⁾ EGR, EFE

5.7L (350") V8 Carb.

PCV, ACL, ⁽⁴⁾ EVAP, OC, FR, ⁽⁵⁾ EGR, ⁽⁸⁾ AIS, EFE

7.4L (454") V8 Carb. ⁽⁷⁾

PCV, ACL, ⁽⁴⁾ EVAP, EGR, AIS, EFE

Heavy Duty Emissions (6001 GVWR Or More) ⁽³⁾

4.1L (250") 6-Cyl. Carb.

PCV, ACL

...

4.8L (292") 6-Cyl. Carb.

PCV, ⁽⁸⁾ ACL, ⁽⁸⁾ ⁽⁴⁾ EVAP

...

5.7L (350") V8 2-Bbl. ⁽⁷⁾

PCV, ACL

...

5.7L (350") V8 4-Bbl.

PCV, ACL, ⁽⁸⁾ EVAP, SPK, ⁽⁸⁾ AIS
EVAP-VC, SPK-SOL, SPK-TCS, ⁽⁶⁾ CCS

...

6.0L (366") & 7.0L (427") V8 Carb.

PCV, ⁽⁸⁾ ⁽⁴⁾ EVAP, ⁽⁸⁾ AIS

...

6.5L (400") V8 4-Bbl. Carb.

PCV, ACL, ⁽⁸⁾ ⁽⁴⁾ EVAP, ⁽⁸⁾ AIS

...

7.4L (454") V8 4-Bbl. Carb.

PCV, ACL, ⁽⁸⁾ ⁽⁴⁾ EVAP, ⁽⁸⁾ EGR, SPK, ⁽⁸⁾ AIS
⁽⁹⁾ SPK-SOL, SPK-TCS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - TRUCKS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	For emission applications on gasoline-powered motor homes 8501 GVWR or more & built on a motor home chassis, see appropriate CLASS "A" MOTOR HOMES table.

⁽⁴⁾	Vapor canister type.

⁽⁵⁾	BP/EGR used on Calif. & high altitude.

⁽⁶⁾	"C", "K" & "G" Series with A/C only.

⁽⁷⁾	Federal only.

⁽⁸⁾	California only.

⁽⁹⁾	Models with A/C only.

1977 Class "A" Motor Homes

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

403" V8 Carb.

PCV, ACL, EVAP, ⁽³⁾ SPK
SPK-DDD, TRC

...

454" V8 Carb.

PCV, ACL, ⁽³⁾ ⁽⁴⁾ EVAP, ⁽³⁾ EGR, ⁽³⁾ AIS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - TRUCKS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California emissions only.

⁽⁴⁾	Vapor canister type.

1977 Imported Cars & Trucks

Model, Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

LUV 2-Bbl.

PCV, ACL, ⁽³⁾ EVAP, ⁽⁴⁾ ⁽⁵⁾ OC, ⁽⁴⁾ FR, EGR, AIS
CRV

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - IMPORTED in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	1976-80 crankcase storage type; 1981 vapor canister type.

⁽⁴⁾	California emissions.

⁽⁵⁾	Except some Federal models.

1978 Buick (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

3.2L (196") V6 2-Bbl

PCV, ACL, EVAP, OC, FR, EGR, EFE
EVAP-VC, EGR-TVS, EFE-CKV, EFE-TVS

3.8L (231") V6 2-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, ⁽³⁾ AIS, EFE
EVAP-VC, EGR-TVS, EFE-CKV, EFE-TVS, ⁽⁵⁾ ADS

3.8L (231") V6 2-Bbl. Turbo

PCV, ACL, EVAP, OC, FR, EGR, EFE
EVAP-VC, EGR-TVS, EFE-CKV, EFE-TVS

3.8L (231") V6 4-Bbl. Turbo

PCV, ACL, EVAP, OC, FR, EGR, AIS, EFE
EVAP-VC, EGR-TVS, EFE-CKV, EFE-TVS

4.9L (301") V8 2-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, EGR-TVS, ⁽⁴⁾ SPK-DSVMV, SPK-DTVS, ⁽⁴⁾ SPK-DVDV, EFE-CKV

5.0L (305") V8 2-Bbl. & 4-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, EFE
EVAP-VC, EGR-TVS, EFE-CKV, EFE-TVS

5.7L (350") V8 4-Bbl. (VIN L)

PCV, ACL, EVAP, OC, FR, EGR, SPK, ⁽⁶⁾ AIS, EFE
EVAP-VC, ⁽⁶⁾ EGR-DTVSW, EGR-TVS, EFE-CKV, EFE-TVS

5.7L (350") V8 4-Bbl. (VIN R)

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, ⁽⁶⁾ EGR-DTVSW, SPK-DTVS, SPK-DVDV, SPK-AVM

5.7L (350") V8 4-Bbl. (VIN X)

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, EGR-TVS, EFE-TVS

5.7L (350") V8 4-Bbl. (VIN 4)

PCV, ACL, EVAP, OC, FR, EGR, SPK, ⁽³⁾ AIS, EFE
EVAP-VC, SPK-DTVS, ⁽⁶⁾ SPK-DVDV

6.6L (403") V8 4-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, SPK, ⁽⁷⁾ AIS, EFE
EVAP-VC, ⁽⁶⁾ EGR-DTVSW, SPK-DTVS, SPK-DVDV, SPK-AVM

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California & high altitude only.

⁽⁴⁾	A/T with A/C only.

⁽⁵⁾	Century, Regal, Skyhawk & Skylark with M/T.

⁽⁶⁾	California only.

⁽⁷⁾	Except VIN R & K.

1978 Cadillac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

5.7L (350") V8 EFI

PCV, EVAP, OC, FR, BP/EGR, SPK, AP
EVAP-VC, ⁽³⁾ SPK-DTVS, ⁽⁴⁾ SPK-ESS

2 or 3

7.0L (425") V8 EFI

PCV, EVAP, OC, FR, BP/EGR, SPK, ⁽⁵⁾ AP
EVAP-VC, BP/EGR-BPT, SPK-DTVS, ⁽⁶⁾ SPK-DVAS

2 or 3

7.0L (425") V8 4-Bbl.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽⁷⁾ AP, EFE
EVAP-VC, ⁽⁸⁾ ACL-TVS, BP/EGR-TVS, SPK-DTVS, EFE-TVS

2 or 3

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California Seville only.

⁽⁴⁾	Seville only.

⁽⁵⁾	California only.

⁽⁶⁾	California DeVille & Brougham only.

⁽⁷⁾	Except Federal models.

⁽⁸⁾	Except California DeVille & Brougham.

1978 Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

5.7L (350") V8 4-Bbl. California

PCV, ACL, EVAP, OC, FR, EGR, AIS, EFE
EVAP-VC

5.7L (350") V8 4-Bbl. Federal

PCV, ACL, EVAP, OC, FR, EGR, ⁽³⁾ AIS, EFE
EVAP-VC, ⁽⁴⁾ CCS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	On L-82 & high altitude engines only.

⁽⁴⁾	On L-48 engine only.

1978 Chevrolet - Except Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

1.6L (98") 4-Cyl. 1-Bbl.

PCV, ACL, ⁽³⁾ EVAP, OC, FR, EGR, ⁽⁴⁾ AIS

2.5L (151") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, EGR, SPK, CEC, EFE
EVAP-VC, SPK-DTVS

3.2L (196") V6 2-Bbl. ⁽³⁾

PCV, ACL, ⁽³⁾ EVAP, OC, FR, EGR, EFE

3.3L (200) V6 2-Bbl. ⁽³⁾

PCV, ACL, ⁽³⁾ EVAP, OC, FR, EGR, SPK, EFE

3.8L (231") V6 2-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, ⁽⁴⁾ AIS, EFE
EVAP-VC, EVAP-CPTVS

4.2L (250") 6-Cyl. 1-Bbl.

PCV, ACL, ⁽³⁾ EVAP, OC, FR, EGR, SPK, ⁽⁵⁾ AIS, EFE

5.0L (305") V8 2-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, SPK, ⁽⁴⁾ AIS, EFE
EVAP-VC, ⁽⁵⁾ SPK-DV

5.7L (350") V8 4-Bbl.

PCV, ACL, ⁽³⁾ EVAP, OC, FR, EGR, ⁽⁴⁾ AIS, EFE

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Vapor canister type.

⁽⁴⁾	California, high altitude & L82.

⁽⁵⁾	California only.

1978 Oldsmobile (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

2.5L (151") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC+OC, FR, EGR, SPK, EFE
EVAP-VC, EGR-TVS, SPK-RDVLV, SPK-TVS, EFE-TVS

3.8L (231") V6 2-Bbl. (VIN A)

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽³⁾ AIS, EFE
EVAP-VC, EVAP-TVS, BP/EGR-TVS, EFE-CV, EFE-TVS

2 or 3

4.3L (260") V8 2-Bbl.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽³⁾ AIS
EVAP-VC, BP/EGR-TCV, ⁽³⁾ BP/EGR-TVS, SPK-AVM, ⁽³⁾ SPK-DCKV, SPK-TVS

2 or 3

5.0L (305") V8 2-Bbl.

PCV, ACL, EVAP, OC, FR, ⁽³⁾ BP/EGR, SPK, ⁽³⁾ AIS, EFE
EVAP-VC, ⁽³⁾ EVAP-TVS, ⁽³⁾ BP/EGR-TVS, ⁽⁴⁾ SPK-DV, EFE-CV, EFE-TVS

2 or 3

5.7L (350") V8 4-Bbl. (VIN L) ⁽³⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AIS, EFE
EVAP-VC, EGR-TVS, EFE-CV, EFE-TVS

5.7L (350") V8 4-Bbl. (VIN R)

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽⁴⁾ AIS
EVAP-VC, ⁽⁴⁾ BP/EGR-TVS, BP/EGR-TCVLV, ⁽³⁾ SPK-TVS

2 or 3

5.7L (350") V8 4-Bbl. (VIN X)

PCV, ACL, EVAP, OC, FR, EGR, SPK, AIS, EFE
EVAP-VC, EVAP-TVS, EGR-TVS, EFE-TVS

6.0L (403") V8 4-Bbl.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽⁴⁾ AIS
EVAP-VC, BP/EGR-TCVLV, BP/EGR-TVS, ⁽³⁾ SPK-TVS, ⁽⁵⁾ SPK-EST

2 or 3

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California & high altitude only.

⁽⁴⁾	California only.

⁽⁵⁾	Toronado only.

1978 Pontiac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

2.5L (151") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, ⁽³⁾ OC, ⁽⁴⁾ TWC, FR, EGR, SPK, ⁽⁴⁾ AIS, EFE
EVAP-VC, EGR-TVS, SPK-TVS, SPK-DV, EFE-TVS

3.8L (231") V6 2-Bbl.

PCV, ACL, EVAP, OC, FR, BP/EGR, ⁽⁵⁾ AIS, EFE
EVAP-VC, EVAP-CPTVS, BP/EGR-TVS, EFE-CV, EFE-TVS

2 or 3

5.0L (301") V8 2-Bbl. ⁽³⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, EFE
EVAP-VC, BP/EGR-TVS, SPK-TVS, SPK-DV, EFE-CV, EFE-TVS

2 or 3

5.0L (301") V8 4-Bbl. ⁽³⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, EGR-TVS, SPK-TVS, SPK-DV, EFE-CV, EFE-TVS

5.0L (305") V8 2-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, SPK, ⁽⁵⁾ AIS, EFE
EVAP-VC, ⁽⁴⁾ SPK-DV, ⁽⁵⁾ AIS-DV, ⁽³⁾ EFE-CV, EFE-TVS

5.7L (350") V8 4-Bbl. ⁽³⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, EFE-CV, EFE-TVS

5.7L (350") V8 4-Bbl. ⁽⁴⁾

PCV, ⁽³⁾ ACL, EVAP, OC, FR, EGR, SPK, ⁽⁵⁾ AIS, EFE
EVAP-VC, EGR-CV, EGR-TVS, SPK-TVS, ⁽⁵⁾ AIS-DV, EFE-CV, EFE-TVS

6.5L (400") V8 4-Bbl. ⁽³⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, EFE
EVAP-VC, BP/EGR-TVS, ⁽⁶⁾ SPK-RDO, SPK-TVS, EFE-CV, EFE-TVS

2 or 3

6.5L (403") V8 4-Bbl. ⁽⁶⁾⁽⁵⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, ⁽⁷⁾ AIS
EVAP-VC, EGR-CV, EGR-TVS, SPK-TVS, AIS-DV

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Federal only.

⁽⁴⁾	California only.

⁽⁵⁾	California and high altitude.

⁽⁶⁾

A/T only.

⁽⁷⁾	Except high altitude.

1978 Domestic Trucks & Vans

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

Light Duty Emissions (6000 GVWR Or Less - Fed.; 8500 GVWR Or Less - Calif.)

4.1L (250") 6-Cyl. 1-Bbl.

PCV, ACL, ⁽⁴⁾ EVAP, OC, FR, ⁽⁵⁾ EGR, ⁽⁶⁾ AIS, EFE

5.0L (305") V8 2-Bbl. ⁽⁷⁾

PCV, ACL, ⁽⁴⁾ EVAP, OC, FR, ⁽⁵⁾ EGR, EFE

5.7L (350") V8 4-Bbl.

PCV, ACL, ⁽⁴⁾ EVAP, OC, FR, ⁽⁵⁾ EGR, ⁽⁶⁾ AIS, EFE

6.5L (400") V8 4-Bbl. ⁽⁸⁾

PCV, ACL, ⁽⁴⁾ EVAP, OC, FR, BP/EGR, AIS, EFE

7.4L (454") V8 4-Bbl.

PCV, ACL, ⁽⁴⁾ EVAP, OC, FR, ⁽⁵⁾ EGR, AIS, EFE

Heavy Duty Emissions (6001 GVWR Or More - Fed.; 8501 GVWR Or More - Calif.) ⁽³⁾

4.1L (250") 6-Cyl. 1-Bbl.

PCV, ACL

...

4.8L (292") 6-Cyl. 1-Bbl.

PCV, ⁽⁹⁾ ACL, ⁽⁹⁾ ⁽¹⁰⁾ EVAP

...

5.0L (305") V8 2-Bbl.

PCV, ACL, ⁽⁹⁾ ⁽¹⁰⁾ SPK

...

5.7L (350") V8 4-Bbl.

PCV, ACL, ⁽⁹⁾ ⁽¹⁰⁾ EVAP, ⁽⁹⁾ ⁽¹¹⁾ SPK, ⁽⁹⁾ AIS

...

6.0L (366") & 7.0L (427") V8 Carb.

PCV, ⁽⁹⁾ ⁽¹⁰⁾ EVAP, ⁽⁹⁾ AIS

...

6.5L (400") V8 4-Bbl.

PCV, ACL, ⁽⁹⁾ ⁽¹⁰⁾ EVAP, ⁽⁹⁾ ⁽¹¹⁾ SPK, ⁽⁹⁾ AIS

...

7.4L (454") V8 4-Bbl.

PCV, ACL, ⁽⁹⁾ ⁽¹⁰⁾ EVAP, ⁽⁹⁾ EGR, ⁽⁹⁾ ⁽¹¹⁾ SPK, ⁽⁹⁾ AIS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - TRUCKS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	For emission applications on gasoline-powered motor homes 8501 GVWR or more & built on a motor home chassis, see appropriate CLASS "A" MOTOR HOMES table.

⁽⁴⁾	High altitude only.

⁽⁵⁾	Except Federal models with A/T.

⁽⁶⁾	Refer to emissions label.

⁽⁷⁾	Calif. S10/15 is electronically controlled.

⁽⁸⁾	Calif. S10/15 only.

⁽⁹⁾	California only.

⁽¹⁰⁾	Vapor canister type.

⁽¹¹⁾	Some are equipped with transmission controlled spark.

1978 Class "A" Motor Homes

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

403" V8 Carb.

PCV, ACL, EVAP, ⁽³⁾ SPK
SPK-DDD, TRC

...

454" V8 Carb.

PCV, ACL, ⁽³⁾ ⁽⁴⁾ EVAP, ⁽³⁾ EGR, ⁽³⁾ AIS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - TRUCKS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California emissions only.

⁽⁴⁾	Vapor canister type.

1978 Imported Cars & Trucks

Model, Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

LUV 2-Bbl.

PCV, ACL, ⁽³⁾ EVAP, ⁽⁴⁾ ⁽⁵⁾ OC, ⁽⁴⁾ FR, EGR, AIS
CRV

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - IMPORTED in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	1976-80 crankcase storage type; 1981 vapor canister type.

⁽⁴⁾	California emissions.

⁽⁵⁾	Except some Federal models.

1979 Buick (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

3.2L (196") V6 2-Bbl. (VIN C) ⁽³⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, EGR-TVS, SPK-DTVS, SPK-AVM, EFE-CKV, EFE-TVS

3.8L (231") V6 2-Bbl. (VIN A & 2)

PCV, ACL, EVAP, ⁽⁴⁾ TWC, FR, EGR, SPK, ⁽⁴⁾ AIS, ⁽⁵⁾ CEC, EFE
EVAP-VC, ACL-TCV, EGR-TVS, ⁽⁶⁾ SPK-DTVS, ⁽⁶⁾ SPK-AVM, EFE-CKV, EFE-TVS

3.8L (231") V6 4-Bbl. Turbo (VIN 3)

PCV, ACL, EVAP, OC, FR,, EGR, AIS, EFE
⁽⁷⁾ ACL-TCV, EVAP-VC, EGR-TVS, EFE-CKV, EFE-TVS

4.9L (301") V8 2-Bbl. (VIN Y)

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, SPK-DTVS, SPK-DVDV, SPK-RDVLV, EFE-TVS

4.9L (301") V8 4-Bbl. (VIN W)

PCV, ACL, EVAP, OC, EGR, SPK, EFE
EVAP-VC, SPK-DSVMV, SPK-DTVS, SPK-DVDV, EFE-TVS

5.0L (305") V8 4-Bbl. (VIN H)

PCV, ACL, EVAP, OC, FR, EGR, ⁽⁸⁾ AIS, EFE
EVAP-VC, EVAP-CPTVS, SPK-DTVS, SPK-DV, EFE-CKV, EFE-TVS

5.7L (350") V8 4-Bbl. (VIN L)

PCV, ACL, EVAP, OC, FR, EGR, ⁽⁸⁾ AIS, EFE
EVAP-VC, EVAP-CPTVS, EFE-CKV, EFE-TVS

5.7L (350") V8 4-Bbl. (VIN R)

PCV, ACL, EVAP, OC, FR, EGR, SPK, ⁽⁴⁾ AIS
EVAP-VC, SPK-DTVS, ⁽⁴⁾ EGR-DTVSW, EGR-TCV

5.7L (350") V8 4-Bbl. (VIN X)

PCV, ACL, EVAP, OC, FR, EGR, EFE
EVAP-VC, EVAP-CPTVS, EGR-TVS, EFE-TVS

6.6L (403") V8 4-Bbl. (VIN K)

PCV, ACL, EVAP, OC, FR, SPK, EGR, ⁽⁴⁾ AIS
EVAP-VC, SPK-DTVS, EGR-DTVSW, EGR-TCV

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Federal only.

⁽⁴⁾	California only.

⁽⁵⁾	VIN 2 only.

⁽⁶⁾	Except VIN 2.

⁽⁷⁾	Riviera only.

⁽⁸⁾	California & high altitude only.

1979 Cadillac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

5.7L (350") V8 EFI (VIN B)

PCV, EVAP, TWC, FR, BP/EGR, ⁽³⁾ SPK, ⁽⁴⁾ AP, ⁽⁵⁾ O2S, CEC
EVAP-VC, BP/EGR-BPT, ⁽⁶⁾ SPK-DTVS, SPK-ESS, ⁽⁷⁾ AP-DV

2 or 3

7.0L (425") V8 EFI (VIN T)

PCV, EVAP, OC, FR, BP/EGR, ⁽³⁾ SPK, AP
EVAP-VC, BP/EGR-BPT, SPK-DTVS, SPK-DVAS, AP-DV

2 or 3

7.0L (425") V8 4-Bbl. (VIN S)

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽⁸⁾ AP, EFE
EVAP-VC, BP/EGR-TCV, ⁽⁸⁾ SPK-ESS, ⁽⁸⁾ AP-DV, ⁽⁹⁾ EFE-TVS

2 or 3

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California & high altitude only.

⁽⁴⁾	Not used on California Seville.

⁽⁵⁾	California Seville only.

⁽⁶⁾	Except Federal Seville.

⁽⁷⁾	Federal Seville only.

⁽⁸⁾	Except Federal Deville & Brougham.

⁽⁹⁾	Electronically controlled.

1979 Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

5.7L (350") V8 4-Bbl. California

PCV, ACL, EVAP, OC, FR, EGR, AIS, EFE
EVAP-VC

5.7L (350") V8 4-Bbl. Federal

PCV, ACL, EVAP, OC, FR, EGR, ⁽³⁾ AIS, EFE
EVAP-VC, ⁽⁴⁾ CCS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	On L-82 & high altitude engines only.

⁽⁴⁾	On L-48 engine only.

1979 Chevrolet - Except Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

1.6L (98") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, SPK, ⁽³⁾ AIS
EVAP-VC, ⁽³⁾ EGR-TVS, SPK-DVDV, ⁽³⁾ DCLV

2.5L (151") 4-Cyl. 2-Bbl. (VIN V)

PCV, ACL, EVAP, TWC, FR, EGR, SPK
EVAP-VC, EGR-TVS, SPK-DTVS, SPK-DVDV

2.5L (151") 4-Cyl. 2-Bbl. (VIN 1)

PCV, ACL, EVAP, TWC, FR, EGR, SPK, EFE
EVAP-VC, SPK-DTVV, SPK-VRSW, EFE-TVV, CEAB, CEAB-TVV

2.5L (151") 4-Cyl. 2-Bbl. (VIN 5)

PCV, ACL, EVAP, TWC, FR, EGR, SPK
EVAP-VC, EGR-TVS, SPK-DTVS, SPK-DVDV

2.8L (173") V6 2-Bbl. (VIN 7) ⁽⁴⁾

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AIS, EFE
EVAP-VC, EVAP-CPTVS, EGR-TVS, SPK-DTVS, EFE-CV, EFE-TVS, DCLV

2.8L (173") V6 2-Bbl. (VIN 7) ⁽⁵⁾

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, EFE
EVAP-VC, EVAP-CPTVS, BP/EGR-TVS, SPK-DTVS, SPK-DVDV, AIS-SV, EFE-CV, EFE-TVS, DCLV

2 or 3

3.2L (196") V6 2-Bbl. (VIN C) ⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, EGR-TVS, SPK-DSVMV, SPK-DTVS, EFE-CV, EFE-TVS

3.3L (200") V6 2-Bbl. (VIN M) ⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, EVAP-CPTVS, EGR-TVS, SPK-DTVS, EFE-TVS

3.8L (231") V6 2-Bbl. (VIN A)

PCV, ACL, EVAP, OC, ⁽⁵⁾ TWC, FR, BP/EGR, SPK, ⁽³⁾ AP, EFE
EVAP-VC, EVAP-CPTVS, ACL-TCV, BP/EGR-TVS, SPK-DTVS, ⁽⁶⁾ SPK-DVDV, SPK-DSVMV, ⁽³⁾ AP-DV, EFE-CV, EFE-TVS

2 or 3

4.2L (250") 6-Cyl. 1-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, SPK, ⁽⁵⁾ AP, EFE
EVAP-VC, EGR-TVS, ⁽⁴⁾ SPK-DVDV, ⁽⁵⁾ SPK-DTVS, ⁽⁵⁾ AP-DV, EFE-TVS

4.3L (267") V8 2-Bbl.. (VIN J) ⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, EVAP-CPTVS, EGR-TVS, SPK-DTVS, EFE-TVS

5.0L (305") V8 2-Bbl. (VIN G)

PCV, ACL, EVAP, OC, FR, EGR, SPK, ⁽⁵⁾ AP, EFE
EVAP-VC, EVAP-CPTVS, EGR-TVS, ⁽⁶⁾ SPK-DTVS, ⁽⁵⁾ AP-DV, EFE-TVS

5.0L (305") V8 4-Bbl. (VIN H)

PCV, ACL, EVAP, OC, FR, EGR, SPK, ⁽⁷⁾ AP, EFE
EVAP-VC, EVAP-CPTVS, EGR-TVS, ⁽⁴⁾ SPK-DTVS, ⁽⁷⁾ AP-DV, EFE-TVS

5.7L (350") V8 4-Bbl. (VIN L)

PCV, ACL, EVAP, OC, FR, EGR, SPK, ⁽⁵⁾ AP
EVAP-VC, EVAP-CPTVS, EGR-TVS, SPK-DTVS, ⁽⁷⁾ AP-DV

5.7L (350") V8 4-Bbl. (VIN 4 & 8)

PCV, ACL, EVAP, OC, FR, EGR, SPK, ⁽⁸⁾ AP, EFE
EVAP-VC, EVAP-CPTVS, EGR-TVS, ⁽⁹⁾ SPK-DTVS, ⁽⁸⁾ AP-DV, EFE-TVS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California & high altitude.

⁽⁴⁾	Federal only.

⁽⁵⁾	California only.

⁽⁶⁾	California M/T only.

⁽⁷⁾	California, high altitude & L82.

⁽⁸⁾	Except some Federal VIN 4.

⁽⁹⁾	Used on some VIN 4 only.

1979 Oldsmobile (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

2.5L (151") 4-Cyl. 2-Bbl. (VIN V)

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK
EVAP-VC, BP/EGR-TVS, SPK-TVS, SPK-RDVLV

2 or 3

2.5L (151") 4-Cyl. 2-Bbl. (VIN 1)

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, O2S, CEC, EFE
EVAP-VC, EFE-DTVS, CEAB, CEAB-TVS

2 or 3

2.5L (151") 4-Cyl. 2-Bbl. (VIN 5) Omega

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽³⁾ AIS
EVAP-VC, BP/EGR-TVS, SPK-TVS, SPK-DV, ⁽⁴⁾ SPK-VRSW

2 or 3

2.8L (173") V6 2-Bbl. (VIN 7)

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, AIS, EFE
EVAP-VC, EVAP-TVS, BP/EGR-TVS, SPK-TVS, ⁽³⁾ SPK-DV, AIS-SV, EFE-TVS, ⁽³⁾ EFE-CV

2 or 3

3.8L (231") V6 2-Bbl. (VIN A & 2)

PCV, ACL, EVAP, ⁽³⁾ TWC+OC, FR, BP/EGR, SPK, ⁽³⁾ ⁽⁵⁾ AIS, ⁽³⁾ CEC, EFE
EVAP-VC, EVAP-TVS, BP/EGR-TVS, ⁽⁶⁾⁽⁵⁾ SPK-AVM, ⁽⁵⁾ SPK-TVS, ⁽³⁾⁽⁵⁾ SPK-DV, EFE-CV, EFE-TVS

2 or 3

4.3L (260") V8 2-Bbl. (VIN F)

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK
EVAP-VC, BP/EGR-TCVLV, SPK-TVS, ⁽³⁾ SPK-DV, ⁽⁷⁾ SPK-AVM

2 or 3

5.0L (301") V8 2-Bbl. (VIN Y) ⁽⁸⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, EFE
EVAP-VC, SPK-TVS, SPK-DVRV, SPK-RDVLV, EFE-TVS

2 or 3

5.0L (305") V8 2-Bbl. (VIN G)

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽³⁾ AIS, EFE
EVAP-VC, EVAP-TVS, BP/EGR-TVS, ⁽⁹⁾ SPK-DV, ⁽⁹⁾ SPK-TVS, EFE-CV, ⁽³⁾ EFE-DTVS, EFE-TVS

2 or 3

5.7L (350") V8 4-Bbl. (VIN L) ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, AIS, EFE
EVAP-VC, EVAP-TVS, BP/EGR-TVS, EFE-CV, EFE-TVS

2 or 3

5.7L (350") V8 4-Bbl. (VIN R)

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, AIS
EVAP-VC, ⁽³⁾ BP/EGR-TVS, BP/EGR-TCVLV, ⁽⁶⁾ SPK-TVS, ⁽¹⁰⁾ SPK-DV

2 or 3

6.6L (403") V8 4-Bbl. (VIN K)

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽⁶⁾ AIS, EFE
EVAP-VC, ⁽⁶⁾ EVAP-TVS, BP/EGR-TVS, BP/EGR-TCVLV, ⁽⁶⁾ SPK-TVS, ⁽¹⁰⁾ SPK-DV

2 or 3

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California only.

⁽⁴⁾	Except California.

⁽⁵⁾	Except VIN 2.

⁽⁶⁾	California & high altitude only.

⁽⁷⁾	Federal & high altitude.

⁽⁸⁾	Federal only.

⁽⁹⁾	Omega only.

⁽¹⁰⁾	High altitude only.

1979 Pontiac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

2.5L (151") 4-Cyl. 2-Bbl. (VIN V) ⁽³⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK
EVAP-VC, EVAP-CPTVS, EGR-TVS, SPK-DV, SPK-TVS

2.5L (151") 4-Cyl. 2-Bbl. (VIN 1) ⁽⁴⁾

PCV, ACL, EVAP, TWC, FR, EGR, SPK, CEC, EFE
EVAP-VC, EGR-TVS, EFE-TVS, CEAB, CEAB-TVS, CESS

3.8L (231") V6 2-Bbl.

PCV, ACL, EVAP, OC, ⁽⁴⁾ TWC, FR, BP/EGR, SPK, ⁽⁵⁾ AIS, EFE
EVAP-VC, ⁽⁵⁾ EVAP-CPTVS, BP/EGR-TVS, SPK-TVS, SPK-DSVMV, EFE-CV, EFE-TVS

2 or 3

4.9L (301") V8 2-Bbl. ⁽³⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, EFE
EVAP-VC, BP/EGR-TVS, SPK-TVS, SPK-DV, SPK-DSVMV, EFE-CV, EFE-TVS

2 or 3

4.9L (301") V8 4-Bbl. ⁽³⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, EGR-TVS, SPK-TVS, ⁽⁶⁾ SPK-DV, ⁽⁶⁾ SPK-DSVMV, EFE-CV, EFE-TVS

5.0L (305") V8 2-Bbl. ⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, SPK-TVS, AP-DV, EFE-TVS, EFE-CV

5.0L (305") V8 4-Bbl. ⁽⁵⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, EVAP-CPTVS, EGR-TVS, AP-DV, EFE-CV

5.7L (350") V8 4-Bbl. (VIN L) ⁽⁵⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, EVAP-TVS, EGR-TVS, AP-DV, EFE-CV

5.7L (350") V8 4-Bbl. (VIN R)

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, EGR-TVS, EGR-TVV, SPK-TVS, AP-DV

5.7L (350") V8 4-Bbl. (VIN X) ⁽⁵⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, EFE
EVAP-VC, EVAP-TVS, EGR-TVS, EFE-TVS

6.5L (400") V8 4-Bbl. (VIN Z)

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, EFE
EVAP-VC, BP/EGR-TVS, SPK-TVS, SPK-DSVMV, EFE-CV, EFE-TVS

2 or 3

6.6L (403") V8 4-Bbl. (VIN K)

PCV, ACL, EVAP, OC, FR, EGR, SPK, ⁽⁴⁾ AP
EVAP-VC, EGR-TVV, ⁽⁴⁾ EGR-TVS, ⁽⁴⁾ AP-DV

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Federal only.

⁽⁴⁾	California only.

⁽⁵⁾	California and high altitude.

⁽⁶⁾

A/T only.

1979 Domestic Trucks & Vans

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

Light Duty Emissions (8500 GVWR Or Less)

4.1L (250") 6-Cyl. Carb.

PCV, ACL, ⁽⁴⁾ EVAP, OC, FR, EGR, ⁽⁵⁾ SPK, ⁽⁶⁾ PAIR, EFE

5.0L (305") V8 Carb.

PCV, ACL, ⁽⁴⁾ EVAP, OC, FR, BP/EGR, ⁽⁵⁾ SPK, EFE

5.7L (350") V8 Carb.

PCV, ACL, ⁽⁴⁾ EVAP, OC, FR, BP/EGR, ⁽⁵⁾ SPK, ⁽⁷⁾ AIS, EFE

6.5L (400") V8 Carb.

PCV, ACL, ⁽⁴⁾ EVAP, OC, FR, ⁽⁸⁾ EGR, ⁽⁵⁾ SPK, ⁽⁶⁾ AIS, EFE

7.4L (454") V8 Carb.

PCV, ACL, ⁽⁴⁾ EVAP, OC, FR, ⁽⁸⁾ EGR, ⁽⁵⁾ SPK, AIS, EFE

Heavy Duty Emissions (8501 GVWR Or More) ⁽³⁾

4.1L (250") 6-Cyl. Carb.

PCV, ACL, ⁽⁵⁾ SPK

...

4.8L (292") 6-Cyl. Carb.

PCV, ACL, ⁽⁶⁾ ⁽⁴⁾ EVAP, ⁽⁵⁾ SPK, AIS

...

5.0L (305") V8 Carb.

PCV, ACL, ⁽⁵⁾ ACL

...

5.7L (350") V8 Carb.

PCV, ACL, ⁽⁶⁾ ⁽⁴⁾ EVAP, ⁽⁵⁾ SPK, AIS, ⁽⁹⁾ EFE

...

6.0L (366") & 7.0L (427") V8 Carb.

PCV, ⁽⁶⁾ ⁽⁴⁾ EVAP, AIS

...

6.5L (400") V8 Carb.

PCV, ACL, ⁽⁶⁾ ⁽⁴⁾ EVAP, ⁽⁴⁾ SPK, AIS, EFE

...

7.4L (454") V8 Carb.

PCV, ACL, ⁽⁶⁾ ⁽⁴⁾ EVAP, ⁽⁹⁾ EGR, ⁽⁵⁾ SPK, AIS, EFE
TRC

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - TRUCKS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	For emission applications on gasoline-powered motor homes 8501 GVWR or more & built on a motor home chassis, see appropriate CLASS "A" MOTOR HOMES table.

⁽⁴⁾	Vapor canister type.

⁽⁵⁾	Some are equipped with transmission controlled spark.

⁽⁶⁾	California only.

⁽⁷⁾	California and Federal high altitude automatic.

⁽⁸⁾	Refer to emissions label.

⁽⁹⁾	Some models.

1979 Class "A" Motor Homes

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

454" V8 Carb.

PCV, ACL, ⁽³⁾ EVAP, ⁽³⁾ EGR, ⁽³⁾ SPK, AIS, EFE
EVAP-VC, SPK-TVS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - TRUCKS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California emissions only.

1979 Imported Cars & Trucks

Model, Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

LUV 2-Bbl.

PCV, ACL, ⁽³⁾ EVAP, ⁽⁴⁾ ⁽⁵⁾ OC, ⁽⁴⁾ FR, EGR, AIS
CRV

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - IMPORTED in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	1976-80 crankcase storage type; 1981 vapor canister type.

⁽⁴⁾	California emissions.

⁽⁵⁾	Except some Federal models.

1980 Buick (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

2.5L (151") 4-Cyl. 2-Bbl. (VIN 5) ⁽³⁾

PCV, ACL, EVAP, TWC, FR, EGR, SPK, ⁽⁴⁾ SPK, CEC, EFE
EVAP-VC, ⁽⁵⁾ SPK-DTVS, ⁽⁴⁾ SPK-RDVLV, ⁽⁵⁾ EGR-TVS, DCLV

2.5L (151") 4-Cyl. 2-Bbl. (VIN 5) ⁽⁶⁾

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AIS, CEC, EFE
EVAP-VC, EGR-TVS, DCLV

2.8L (173") V6 2-Bbl. ⁽³⁾

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AIS, CEC, EFE
EVAP-VC, EVAP-CPTVS, EVAP-TPCV, EGR-TVS, EFE-TVS, DCLV

2.8L (174") V6 2-Bbl. ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, PAIR, EFE
EVAP-VC, EVAP-CPTVS, EGR-TVS, EFE-TVS, DCLV

3.8L (231") V6 2-Bbl. (VIN A) ⁽³⁾

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AIS, CEC, EFE
EVAP-VC, EVAP-CPTVS, EGR-TVS, AIS-VCV, EFE-TVS

3.8L (231") V6 2-Bbl. (VIN A) ⁽⁶⁾

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AP, ⁽⁷⁾ CEC, EFE
EVAP-VC, ⁽⁵⁾ EVAP-CPTVS, EGR-TVS, ⁽⁴⁾ SPK-DTVS, AP-ACV, EFE-TVS, NLV

3.8L (231") V6 4-Bbl. Turbo (VIN 3) ⁽³⁾

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AP, EFE
EVAP-VC, EVAP-CPTVS, EGR-SOL, AP-VCV, AP-ASV, AP-DV, EFE-SOL

3.8L (231") V6 4-Bbl. Turbo (VIN 3) ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, EGR-TS, AP-ACV, AP-DV, EFE-TVS

4.1L (252") V6 4-Bbl. ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, EGR-TVS, SPK-DTVS, AP-ACV, EFE-TVS, NLV

4.3L (265") V8 2-Bbl. ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, SPK-DV, SPK-TVS, AP-DV

4.9L (301") V8 4-Bbl. ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, SPK-DTVS, AP-DV, EFE-TVS

5.0L (305") V8 4-Bbl. ⁽³⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, EGR-TVS, SPK-DTVS, AP-DV, EFE-TVS

5.0L (305") V8 4-Bbl. ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, EGR-TVS, SPK-DTVS, ⁽⁴⁾ AP-VCV, ⁽⁴⁾ AP-DV, EFE-TVS

5.7L (350") V8 4-Bbl. (VIN R) ⁽³⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, CEC
EVAP-VC, EVAP-CPTVS, EGR-TVS, SPK-DTVS, SPK-AVM

5.7L (350") V8 4-Bbl. (VIN R) ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AIS, CEC, EFE
EVAP-VC, EVAP-CPTVS, EGR-TVS, SPK-DV

5.7L (350") V8 4-Bbl. (VIN X) ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AIS, EFE
EVAP-VC, EVAP-CPTVS, EFE-TVS, NLV, DKV

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California only.

⁽⁴⁾	Some models.

⁽⁵⁾

M/T only.

⁽⁶⁾	Federal only.

⁽⁷⁾	Some Federal models. See California listing.

1980 Cadillac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

4.1L (252") V6 4-Bbl. ⁽³⁾

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, EFE
EVAP-VC, BP/EGR-TVS, SPK-ESS, SPK-DTVS, AP-ACV, EFE-TVS, NLV

2 or 3

5.7L (350") V8 EFI ⁽⁴⁾

PCV, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S
EVAP-VC, BP/EGR-SOL, SPK-ESS, AP-SV, AP-ACV

2 or 3

6.0L (368") V8 EFI ⁽³⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, AP, EFE
EVAP-VC, EVAP-TVS, BP/EGR-SOL, SPK-ESS, AP-DV, EFE-TVS

2 or 3

6.0L (368") V8 4-Bbl. ⁽⁴⁾

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, EFE
EVAP-VC, BP/EGR-DTVSW, SPK-ESS, AP-ACV

2 or 3

6.0L (368") V8 4-Bbl. ⁽³⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, AP, EFE
EVAP-VC, BP/EGR-DTVSW, SPK-ESS, AP-DV

2 or 3

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Federal only.

⁽⁴⁾	California only.

1980 Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

5.0L (305") V8 4-Bbl. California

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AP, O2S, CEC, MIL, EFE
EVAP-VC, SPK-EST, EFE-TVS

5.0L (305") V8 4-Bbl. Federal

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, SPK-TVS, EFE-TVS

5.7L (350") V8 4-Bbl.

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, EGR-TVS, SPK-DTVS, AP-DV, EFE-TVS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

1980 Chevrolet - Except Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

1.9L (98") 4-Cyl. 2-Bbl. ⁽³⁾

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AIS, CEC
EVAP-VC, EVAP-CPTVS, EGR0TVS, DCLV

1.6L (98") 4-Cyl. 2-Bbl. ⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AIS, EFE
EVAP-VC, DCLV

2.5L (151") 4-Cyl. 2-Bbl. (VIN V) ⁽³⁾

PCV, ACL, EVAP, TWC, FR, EGR, SPK, CEC, EFE
EVAP-VC, EGR-TVS, SPK-TVS, DCLV

2.5L (151") 4-Cyl. 2-Bbl. (VIN V) ⁽⁴⁾

PCV, ACL, EVAP, TWC, FR, EGR, SPK, CEC, EFE
EVAP-VC, EGR-TVS, SPK-DTVS, SPK, TVS, DCLV

2.5L (151") 4-Cyl. 2-Bbl. (VIN 5) ⁽³⁾

PCV, ACL, EVAP, TWC, FR, EGR, SPK, CEC, EFE
EVAP-VC, ⁽⁵⁾ EGR-TVS, ⁽⁵⁾ SPK-DTVS, ⁽⁶⁾ SPK-RDVLV

2.5L (151") 4-Cyl. 2-Bbl. (VIN 5) ⁽⁴⁾

PCV, ACL, EVAP, TWC, FR, EGR, SPK, EFE
EVAP-VC, EGR-TVS, SPK-DTVS, DCLV

2.8L (173") V6 2-Bbl. ⁽³⁾

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AIS, O2S, CEC, EFE, MIL
EVAP-VC, EVAP-CPTVS, EGR-TVS, EFE-TVS, DCLV

2.8L (173") V6 2-Bbl. ⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR, PAIR, EFE
EVAP-VC, EVAP-TPCV, EVAP-CPTVS, EGR-TVS, EFE-TVS, DCLV

3.8L (229") V6 2-Bbl. ⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, EGR-TVS, AP-DV, EFE-TVS

3.8L (231") Turbo V6 (VIN 3) ⁽³⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EVAP-CPTVS, EGR-SOL, AP-ACV, AP-DV, EFE-SOL

3.8L (231") Turbo V6 (VIN 3) ⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, EGR-TVS, AP-ACV, AP-DV, EFE-TVS

3.8L (231") V6 2-Bbl. (VIN A) ⁽³⁾

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, EVAP-CPTVS, EGR-TVS, AIS-AMV, EFE-TVS

3.8L (231") V6 2-Bbl. (VIN A) ⁽⁴⁾⁽⁷⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AIS, ⁽⁷⁾ CEC, EFE
EVAP-VC, ⁽⁵⁾ EVAP-CPTVS, EGR-TVS, ⁽⁶⁾ SPK-DTVS, AIS-AMV, EFE-TVS, NLV

4.3L (267") V8 2-Bbl. ⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, EGR-TVS, SPK-DTVS, AP-DV, EFE-TVS

5.0L (305") V8 4-Bbl. ⁽³⁾

PCV, ACL, EVAP, OC, FR, SPK, ⁽⁶⁾ AP, O2S, CEC, EFE
EVAP-VC, EGR-TVS, SPK-DTVS, AP-DV, EFE-TVS

5.0L (305") V8 4-Bbl. ⁽⁴⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, EGR-TVS, SPK-DTVS, ⁽⁶⁾ AP-ACV, ⁽⁶⁾ AP-DV, EFE-TVS

5.7L (350") V8 4-Bbl. (VIN L)

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, EGR-TVS, SPK-DTVS, AP-DV, EFE-TVS

5.7L (350") V8 4-Bbl. (VIN 6 & 8)

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, EGR-TVS, SPK-DTVS, AP-DV, EFE-TVS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California only.

⁽⁴⁾	Federal only.

⁽⁵⁾

M/T only.

⁽⁶⁾	Some models.

⁽⁷⁾	Some Federal models use C-4. See California listing.

1980 Oldsmobile (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

2.5L (151") 4-Cyl. 2-Bbl. (VIN V)

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, O2S, CEC, EFE
EVAP-VC, BP/EGR-TVS, SPK-TVS

2 or 3

2.5L (151") 4-Cyl. 2-Bbl. (VIN 5) ⁽³⁾

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, O2S, CEC, EFE
EVAP-VC, BP/EGR-TVS, ⁽⁴⁾ SPK-TVS, ⁽⁵⁾ SPK-RDVLV

2 or 3

2.5L (151") 4-Cyl. (VIN 5) ⁽⁶⁾

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, CEC, EFE
EVAP-VC, BP/EGR-TVS, SPK-TVS

2 or 3

2.8L (173") V6 2-Bbl. ⁽³⁾

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, O2S, AIS, CEC, EFE
EVAP-VC, EVAP-TVS, EVAP-TPCV, BP/EGR-TVS, SPK-EST, EFE-TVS

2 or 3

2.8L (173") V6 2-Bbl. ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, PAIR, EFE
EVAP-VC, EVAP-TVS, BP/EGR-TVS, SPK-EST, EFE-TVS

2 or 3

3.8L (231") V6 2-Bbl. (VIN A) ⁽³⁾

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, O2S, AP, CEC, EFE
EVAP-VC, EVAP-TVS, BP/EGR-TVS, AP-ACV, SPK-EST, EFE-TVS

2 or 3

3.8L (231") V6 2-Bbl. (VIN A) ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, AP, EFE
EVAP-VC, ⁽⁴⁾ EVAP-TVS, BP/EGR-TVS, SPK-TVS, AP-ACV, EFE-TVS, NLV

2 or 3

4.3L (260") V8 2-Bbl. ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, AIS, EFE
EVAP-VC, EVAP-TVS, BP/EGR-TVS, SPK-AVM, SPK-DV, EFE-DTVS

2 or 3

5.0L (305") V8 4-Bbl. ⁽³⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, O2S, AP, CEC, EFE
EVAP-VC, BP/EGR-TVS, SPK-TVS, AP-DV, EFE-TVS

2 or 3

5.0L (305") V8 4-Bbl. ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, AP, EFE
EVAP-VC, BP/EGR-TVS, SPK-TVS, ⁽⁵⁾ AP-ACV, ⁽⁵⁾ AP-DV, EFE-TVS

2 or 3

5.0L (307") V8 4-Bbl. ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, AIS, EFE
EVAP-VC, EVAP-TVS, BP/EGR-TVS, SPK-AVM, SPK-DV

2 or 3

5.7L (350") V8 4-Bbl. (VIN R) ⁽³⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, O2S, AP, CEC
EVAP-VC, BP/EGR-TVS, SPK-TVS

2 or 3

5.7L (350") V8 4-Bbl. (VIN R) ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, AIS
EVAP-VC, EVAP-TVS, BP/EGR-TVS, SPK-DV

2 or 3

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California only.

⁽⁴⁾

M/T only.

⁽⁵⁾	Some models.

⁽⁶⁾	Federal only.

1980 Pontiac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

2.5L (151") 4-Cyl. 2-Bbl. (VIN V)

PCV, ACL, EVAP, TWC, FR, EGR, SPK, ⁽³⁾ O2S, ⁽³⁾ CEC, EFE
EVAP-VC, EGR-TVS, SPK-TVS, DCLV

2.5L (151") 4-Cyl. 2-Bbl. (VIN 5) ⁽³⁾

PCV, ACL, EVAP, TWC, FR, EGR, SPK, CEC, EFE
EVAP-VC, ⁽⁴⁾ EGR-TVS, ⁽⁴⁾ SPK-TVS, ⁽⁵⁾ SPK-RDVLV

2.5L (151") 4-Cyl. 2-Bbl. (VIN 5) ⁽⁶⁾

PCV, ACL, EVAP, TWC, FR, EGR, SPK, EFE
EVAP-VC, EGR-TVS, SPK-TVS, DCLV

2.8L (173") V6 2-Bbl. ⁽³⁾

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AIS, CEC, EFE
EVAP-VC, EVAP-TPCV, EGR-TVS, SPK-DTVS, EFE-TVS, DCLV

2.8L (173") V6 2-Bbl. ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, PAIR, EFE
EVAP-VC, EVAP-CPTVS, EGR-TVS, EFE-TVS, DCLV

3.8L (229") V6 2-Bbl. ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, EFE-TVS, ⁽⁵⁾ EGR-TVS, AP-DV

3.8L (231") V6 2-Bbl. ⁽³⁾

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AP, CEC, EFE
EVAP-VC, EVAP-CPTVS, EGR-TVS, AP-ACV, EFE-TVS

3.8L (231") V6 2-Bbl. ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AIS, EFE
EVAP-VC, ⁽⁴⁾ EVAP-CPTVS, ⁽⁵⁾ SPK-TVS, EGR-TVS, AIS-ACV, EFE-TVS, NLV

4.3L (265") V8 2-Bbl. ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, SPK-TVS, SPK-DV, AP-ACV

4.9L (301") V8 4-Bbl. ⁽⁶⁾

PCV, ACL, ⁽⁷⁾ EVAP, OC, FR, EGR, SPK, EFE

5.0L (305") V8 Turbo ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, EGR-TVS, SPK-TVS, AP-DV

5.0L (305") V8 4-Bbl. ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, SPK-TVS, AP-DV, EFE-TVS

5.0L (305") V8 4-Bbl. ⁽³⁾

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AP, CEC, EFE
EVAP-VC, EGR-TVS, SPK-TVS, AP-DV, EFE-TVS

5.7L (350") V8 4-Bbl. (VIN R) ⁽³⁾

PCV, ACL, EVAP, TWC, FR, EGR, SPK, CEC
EVAP-VC, EVAP-CPTVS, EGR-DTVSW, SPK-TVS, SPK-AVM

5.7L (350") V8 4-Bbl. (VIN X) ⁽⁶⁾

PCV, ACL, EVAP, OC, FR, EGR, SPK, AP, EFE
EVAP-VC, EVAP-CPTVS, EGR-TVS, AP-ACV, EFE-TVS, NLV

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California only.

⁽⁴⁾

M/T only.

⁽⁵⁾	Some models.

⁽⁶⁾	Federal only.

⁽⁷⁾	Vapor canister type.

1980 Domestic Trucks & Vans

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

Light Duty Emissions (8500 GVWR Or Less)

4.1L (250") 6-Cyl. Carb.

PCV, ACL, EVAP, OC, FR, ⁽⁴⁾ EGR, SPK, PAIR, EFE
EVAP-VC, EGR-TVS, SPK-DV, SPK-TVS, EFE-TVS, ⁽⁵⁾ DCLV

5.0L (305") V8 Carb.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, EFE
EVAP-VC, BP/EGR-TVS, SPK-DV, EFE-TVS

5.7L (350") V8 Carb.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽⁴⁾ AP, EFE
EVAP-VC, BP/EGR-TVS, SPK-DV, ⁽⁴⁾ AP-DV, EFE-TVS

6.5L (400") V8 Carb.

PCV, ACL, ⁽⁶⁾ EVAP, OC, FR, EGR, ⁽⁷⁾ SPK, ⁽⁸⁾ AIS, EFE

Heavy Duty Emissions (8501 GVWR Or More) ⁽³⁾

4.8L (292") 6-Cyl. Carb.

PCV, ACL, ⁽⁸⁾ EVAP, SPK, AP
EVAP-VC, SPK-DV, SPK-TVS, AP-DV

...

5.7L (350") V8 Carb.

PCV, ACL, ⁽⁸⁾ EVAP, SPK, ⁽⁸⁾ AP, ⁽⁴⁾ EFE
EVAP-VC, SPK-DV, SPK-TVS, AP-DV, ⁽⁴⁾ EFE-TVS

...

6.0L (366") & 7.0L (427") V8 Carb.

PCV, ⁽⁸⁾ ⁽⁶⁾ EVAP, AIS

...

6.5L (400") V8 Carb.

PCV, ACL, ⁽⁸⁾ EVAP, SPK, AP, ⁽⁴⁾ EFE
EVAP-VC, SPK-DV, SPK-TVS, AP-DV, ⁽⁴⁾ EFE-TVS

...

7.4L (454") V8 Carb.

PCV, ACL, ⁽⁸⁾ EVAP, SPK, AP, ⁽⁴⁾ EFE
EVAP-VC, SPK-TVS, AP-DV, ⁽⁴⁾ EFE-TVS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - TRUCKS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	For emission applications on gasoline-powered motor homes 8501 GVWR or more & built on a motor home chassis, see appropriate CLASS "A" MOTOR HOMES table.

⁽⁴⁾	Some models.

⁽⁵⁾	Except Federal models with A/T.

⁽⁶⁾	Vapor canister type.

⁽⁷⁾	Some are equipped with transmission controlled spark.

⁽⁸⁾	California only.

1980 Class "A" Motor Homes

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

454" V8 Carb.

PCV, ACL, ⁽³⁾ EVAP, ⁽⁴⁾ EGR, ⁽³⁾ SPK, AIS, EFE
EVAP-VC, SPK-TVS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - TRUCKS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California emissions only.

⁽⁴⁾	Some models.

1980 Imported Cars & Trucks

Model, Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

LUV 2-Bbl.

PCV, ACL, ⁽³⁾ EVAP, ⁽⁴⁾ ⁽⁵⁾ OC, ⁽⁴⁾ FR, EGR, AIS
CRV

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - IMPORTED in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	1976-80 crankcase storage type; 1981 vapor canister type.

⁽⁴⁾	California emissions.

⁽⁵⁾	Except some Federal models.

1981 Buick (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

2.5L (151") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AP, O2S, CEC
EVAP-VC, EGR-TVV, SPK-CC, AP-DV

2.8L (173") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-CPCS, EVAP-TPCV, EGR-TVS, SPK-CC, AP-ACV, DCLV

3.8L (231") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EVAP-CPCS, EGR-SOL, SPK-CC, AP-VCV, EFE-SOL

3.8L (231") V6 4-Bbl. Turbo

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EVAP-CPCS, SPK-CC, AP-DV, EFE-SOL

4.1L (252") V6 4-Bbl.

PCV, ACL, EVAP, OC, FR, ⁽³⁾ EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EVAP-CPTVS, EGR-SOL, SPK-CC, AP-VCV, EFE-SOL

4.3L (265") V8 2-Bbl.

PCV, ACL, EVAP, OC, FR, ⁽³⁾ EGR, SPK, AP, O2S, CEC, EFE
EVAP-CPTVS, EGR-SOL, SPK-CC, AP-ACV, EFE-TVS

4.4L (267") V8 2-Bbl.

PCV, ACL, EVAP, OC, FR, ⁽³⁾ EGR, SPK, AIS, O2S, CEC, EFE
EVAP-CPCS, EGR-SOL, SPK-CC, EFE-TVV

5.0L (305") V8 4-Bbl.

PCV, ACL, EVAP, OC, FR, ⁽³⁾ EGR, SPK, AP, O2S, CEC, EFE
EVAP-CPTVS, EGR-SOL, SPK-CC, AP-ACV, EFE-TVS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Electronically controlled.

1981 Cadillac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

1.8L (113") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EVAP-CPCS, EVAP-FTCV, BP/EGR-TVS, SPK-EST, DCLV

2 or 3

4.1L (262") V6 MFI

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EGR-SOL, AP-ACV, ⁽⁴⁾ SPK-ESC, SPK-EST, EFE-SOL

6.0L (368") V8-6-4 DFI

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AP, O2S, CEC, EFE, MIL
EVAP-VC, EVAP-CPCS, EGR-SOL, SPK-EST, AP-CKV, EFE-TVS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Electronically controlled.

⁽⁴⁾	Some models.

1981 Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

5.7L (350") V8 4-Bbl.

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-TVS, EGR-SOL, SPK-EST, AP-ACV, EFE-TVS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

1981 Chevrolet - Except Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

1.6L (98") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, FR, EGR, SPK, PAIR, O2S, CEC
EVAP-VC, EVAP-CPCS, EVAP-TPCV, SPK-EST, DCLV

1.8L (111") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC
EVAP-VC, EVAP-CPCS, EVAP-TPCV, BP/EGR-TVS, SPK-EST, DCLV

2 or 3

2.5L (151") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, O2S, CEC
EVAP-VC, BP/EGR-TVV, SPK-EST, AP-DV

2 or 3

2.8L (173") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-CPCS, EVAP-TPCV, BP/EGR-TVS, AP-ACV, SPK-EST, DCLV

2 or 3

3.8L (229") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AP, O2S, CEC
EVAP-CPTVS, EGR-SOL, SPK-DTVS, SPK-EST, AP-ACV

2 or 3

3.8L (231") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EGR-SOL, SPK-EST, AP-ACV, EFE-SOL

3.9L (231") Turbo V6 4-Bbl.

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-CPTVS, EGR-SOL, SPK-EST, AP-DV

4.4L (257") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EVAP-CPTVS, EGR-SOL, SPK-EST, AP-ACV, EFE-TVS

5.0L (305") V8 4-Bbl.

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EVAP-CPTVS, EGR-SOL, SPK-EST, AP-ACV, EFE-TVS

5.7L (350") V8 4-Bbl.

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, AP, SPK, O2S, CEC, EFE
EVAP-VC, EVAP-CPTVS, EGR-SOL, SPK-EST, AP-ACV, EFE-TVS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Electronically controlled.

1981 Oldsmobile (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

2.5L (151") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AP, O2S, CEC
EVAP-VC, EGR-TVV, SPK-EST, AP-DV

2.8L (173") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AIS, O2S, CEC
EVAP-VC, EVAP-CPCS, EVAP-TPCV, EGR-TVS, SPK-EST

3.8L (231") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EVAP-CPCS, BP/EGR-SOL, SPK-EST, AP-ACV, EFE-SOL

2 or 3

4.1L (252") V6 4-Bbl.

PCV. ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-TVS, BP/EGR-SOL, SPK-EST, AP-ACV, EFE-SOL

2 or 3

4.3L (260") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, EVAP-TVS, BP/EGR-TVS, SPK-EST, EFE-TVS

2 or 3

4.4L (267") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-TVS, BP/EGR-SOL, SPK-EST, AP-ACV, EFE-TVS

2 or 3

5.0L (305") V8 4-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-TVS, BP/EGR-SOL, SPK-EST, AP-ACV, EFE-TVS

2 or 3

5.0L (307") V8 4-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, EVAP-TVS, BP/EGR-SOL, SPK-EST, EFE-TVV

2 or 3

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

1981 Pontiac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

1.6L (98") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AIS, O2S, CEC
EVAP-VC, EVAP-CPCS, EVAP-TPCV, SPK-CC, DCLV

2.5L (151") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, BP/EGR-TVV, SPK-CC, AP-DV

2 or 3

2.8L (173") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-CPCS, EVAP-TPCV, EGR-TVS, SPK-CC, AP-ACV, DCLV

2 or 3

3.8L (231") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EVAP-CPCS, EGR-SOL, SPK-CC, AP-ACV, EFE-SOL

4.3L (265") V8 2-Bbl.

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, EVAP-CPCS, EGR-SOL, SPK-CC, EFE-TVV

4.4L (267") V8 2-Bbl.

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-CPTVS, EGR-SOL, SPK-CC, AP-ACV, EFE-TVS

4.9L (301") V8 4-Bbl. Non-Turbo

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EVAP-CPCS, AP-ACV, SPK-CC, EFE-TVV

4.9L (301") V8 4-Bbl. Turbo

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-CPCS, EGR-SOL, SPK-CC, AP-ACV

5.0L (305") V8 4-Bbl.

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-CPTVS, EGR-SOL, SPK-CC, AP-ACV, EFE-TVS

5.0L (307") V8 4-Bbl.

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, EVAP-CPTVS, EGR-SOL, SPK-CC, EFE-TVV

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

1981 Domestic Trucks & Vans

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

Light Duty Emissions (8500 GVWR Or Less)

4.1L (250") 6-Cyl. Carb.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽⁴⁾ ⁽⁵⁾ AIS, EFE
EVAP-VC, EVAP-TVS, BP/EGR-TVS, SPK-RDVLV, EFE-TVS, ⁽⁶⁾ DCLV

5.0L (305") V8 Carb.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, EFE
EVAP-VC, BP/EGR-TVS, SPK-DV, EFE-TVS

5.7L (350") V8 Carb.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, AIS, EFE
EVAP-VC, BP/EGR-TVS, SPK-DV, SPK-TVS, EFE-TVS, DCLV

Heavy Duty Emissions (8501 GVWR Or More) ⁽³⁾

4.8L (292") 6-Cyl. Carb.

PCV, ACL, ⁽⁴⁾ EVAP, SPK, AP
EVAP-VC, SPK-DV, SPK-TVS, AP-DV

...

5.0L (305") V8 Carb.

PCV, ACL, ⁽⁴⁾ EVAP, BP/EGR, SPK, AIS, EFE
EVAP-VC, BP/EGR-TVS, SPK-DV, SPK-TVS, EFE-TVS

5.7L (350") V8 Carb.

PCV, ACL, ⁽⁴⁾ EVAP, SPK, AIS, EFE
EVAP-VC, SPK-DV, SPK-TVS, EFE-TVS

...

6.0L (366") & 7.0L (427") V8 Carb.

PCV, ⁽⁴⁾ ⁽⁷⁾ EVAP, AIS

...

7.4L (454") V8 Carb.

PCV, ACL, ⁽⁴⁾ EVAP, SPK, AIS, EFE
EVAP-VC, SPK-TVS, EFE-TVS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - TRUCKS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	For emission applications on gasoline-powered motor homes 8501 GVWR or more & built on a motor home chassis, see appropriate CLASS "A" MOTOR HOMES table.

⁽⁴⁾	California only.

⁽⁵⁾	Some with A/T use PAIR.

⁽⁶⁾	Except Federal models with A/T.

⁽⁷⁾	Vapor canister type.

1981 Class "A" Motor Homes

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

454" V8 Carb.

PCV, ACL, ⁽³⁾ EVAP, ⁽⁴⁾ EGR, ⁽³⁾ SPK, AIS, EFE
EVAP-VC, SPK-TVS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - TRUCKS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California emissions only.

⁽⁴⁾	Some models.

1981 Imported Cars & Trucks

Model, Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

LUV 2-Bbl.

PCV, ACL, ⁽³⁾ EVAP, ⁽⁴⁾ ⁽⁵⁾ OC, ⁽⁴⁾ FR, EGR, AIS
CRV

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - IMPORTED in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	1976-80 crankcase storage type; 1981 vapor canister type.

⁽⁴⁾	California emissions.

⁽⁵⁾	Except some Federal models.

1982 Buick (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

1.8L (112") 4-Cyl. EFI

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, O2S, CEC
EVAP-VC, BP/EGR-BPV, SPK-CC

2 or 3

1.8L (112") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-CPCS, EVAP-FBVV, EVAP-TPCV, BP/EGR-BPV, SPK-CC, AP-AMV, DCLV

2 or 3

2.0L (122") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-CPCS, EVAP-FBVV, EVAP-TPCV, BP/EGR-BPV, SPK-CC, AP-AMV, DCLV

2 or 3

2.5L (151") 4-Cyl. TBI

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, O2S, CEC
EVAP-VC, EVAP-CPCV, BP/EGR-BPV, SPK-CC

2 or 3

2.8L (173") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-CPCS, EVAP-FBVV, EVAP-TPCV, EGR-BPV, ⁽⁴⁾ EGR-SOL, EGR-TVS, SPK-CC, AP-AMV, DCLV

3.0L (181") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, SPK-CC

3.8L (231") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, SPK-CC

4.1L (252") V6 4-Bbl.

PCV, ACL, EVAP, OC, FR, ⁽³⁾ EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, SPK-CC

5.0L (307") V8 4-Bbl.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-CPCV, EVAP-CPTVS, BP/EGR-BPV, SPK-CC, AP-VCV, EFE-TVS

2 or 3

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Refer to underhood emissions label.

⁽⁴⁾	Some models.

1982 Cadillac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

1.8L (113") 4-Cyl. EFI

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, BP/EGR-BPV, SPK-EST

2 or 3

1.8L (113") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-FBVV, EVAP-TPCV, BP/EGR-BPV, SPK-EST, AP-AMV, DCLV

2 or 3

2.0L (122") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-FBVV, EVAP-TPCV, EVAP-CPCS, BP/EGR-BPV, SPK-EST, AP-AMV, DCLV

2 or 3

4.1L (250") V8 MFI

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EVAP-CPCS, EGR-BPV, EGR-SOL, SPK-EST, ⁽⁴⁾ SPK-ESC, AP-AMV

4.1L (252") V6 4-Bbl.

PCV, ACL, ⁽⁵⁾ EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AP, O2S, CEC, EFE

6.0L (368") V8 MFI

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EVAP-CPCS, EGR-BPV, EGR-SOL, SPK-EST, AP-ACV, EFE-TVS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Electronically controlled.

⁽⁴⁾	Some models.

⁽⁵⁾	Vapor canister type.

1982 Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

5.7L (350") V8 EFI

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EVAP-CPCS, BP/EGR-BPV, BP/EGR-SOL, SPK-EST, AP-ACV

2 or 3

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

1982 Chevrolet - Except Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

1.6L (98") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC
EVAP-VC, ⁽³⁾ EVAP-CPCS, EVAP-TPCV, BP/EGR-BPV, SPK-EST, DCLV

2 or 3

1.8L (111") 4-Cyl. EFI

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, O2S, CEC
EVAP-VC, BP/EGR-BPV, SPK-EST

2 or 3

1.8L (111") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC
EVAP-VC, EVAP-CPCS, EVAP-TPCV, BP/EGR-BPV, SPK-EST, AIS-AMV, DCLV

2 or 3

2.0L (122") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC
EVAP-VC, EVAP-CPCS, EVAP-TPCV, BP/EGR-BPV, SPK-EST, AIS-AMV, DCLV

2 or 3

2.5L (151") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, O2S, CEC
EVAP-VC, ⁽⁴⁾ EVAP-CPCS, ⁽⁵⁾ EVAP-CPCV, BP/EGR-BPV, SPK-EST

2 or 3

2.8L (173") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC
EVAP-VC, EVAP-TPCV, EVAP-CPCS, BP/EGR-BPV, BP/EGR-SOL, BP/EGR-TVS, SPK-EST, AIS-AMV, DCLV

2 or 3

3.8L (229") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, EVAP-CPCV, EVAP-CPTVS, BP/EGR-BPV, BP/EGR-SOL, SPK-EST, AIS-AMV, EFE-TVS

2 or 3

3.8L (231") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, ⁽⁶⁾ EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, SPK-EST

4.4L (267") V6 2-Bbl.

PCV, ACL, EVAP, VC, FR, BP/EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, EVAP-CPCV, EVAP-CPTVS, BP/EGR-BPV, BP/EGR-SOL, SPK-EST, AIS, AMV, EFE-TVS

2 or 3

5.0L (307") V8 4-Bbl. & 5.0L (305") V8 TBI

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EVAP-CPCV, EVAP-CPTVS, BP/EGR-BPV, BP/EGR-SOL, SPK-EST, AP-AMV, EFE-TVS

2 or 3

5.7L (350") V8 EFI

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-CPCS, BP/EGR-BPV, BP/EGR-SOL, SPK-EST, AP-ACV

2 or 3

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾

M/T only.

⁽⁴⁾

Camaro.

⁽⁵⁾	Celebrity & Citation.

⁽⁶⁾	Electronically controlled.

1982 Oldsmobile (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

1.8L (112") 4-Cyl. EFI

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC
EVAP-VC, BP/EGR-BPV, SPK-EST

2 or 3

1.8L (112") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-FBVS, EVAP-TPCV, EVAP-CPCS, BP/EGR-BPV, SPK-EST, AP-AMV

2 or 3

2.0L (122") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-FBVS, EVAP-TPCV, EVAP-CPCS, BP/EGR-BPV, SPK-EST, AP-AMV

2 or 3

2.5L (151") 4-Cyl. TBI

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, O2S, CEC
EVAP-VC, EVAP-CPCV, BP/EGR-BPV, SPK-EST

2 or 3

2.8L (173") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-FBVV, EVAP-TPCV, EVAP-CPCS, EGR-BPV, ⁽⁴⁾ EGR-SOL, EGR-TVS, SPK-EST, AP-AMV

2 or 3

3.0L (181") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, SPK-EST

3.8L (231") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, SPK-EST

4.1L (252") V6 4-Bbl.

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, SPK-EST

4.3L (260") V8 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EVAP-CPCV, EVAP-TVS, BP/EGR-BPV, SPK-EST, AP-ACV, EFE-TVS

2 or 3

5.0L (307") V8 4-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-CPCV, EVAP-TVS, BP/EGR-BPV, SPK-EST, AP-ACV, EFE-TVS

2 or 3

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Electronically controlled.

⁽⁴⁾	Some models.

1982 Pontiac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

1.6L (98") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC
EVAP-VC, ⁽³⁾ EVAP-CPCS, EVAP-TPCV, BP/EGR-BPV, SPK-CC, DCLV

2 or 3

1.8L (112") 4-Cyl. TBI

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, O2S, CEC
EVAP-VC, BP/EGR-BPV, SPK-CC

2 or 3

1.8L (112") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-FBVV, EVAP-TPCV, EVAP-CPCS, BP/EGR-BPV, SPK-CC, AP-AMV, DCLV

2 or 3

2.0L (122") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-FBVV, EVAP-TPCV, EVAP-CPCS, BP/EGR-BPV, SPK-CC, AP-AMV, DCLV

2 or 3

2.5L (151") 4-Cyl. TBI

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, O2S, CEC
EVAP-VC, ⁽⁴⁾ EVAP-CPCS, ⁽⁵⁾ EVAP-CPCV, BP/EGR-BPV, SPK-CC

2 or 3

2.8L (173") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-FBVV, EVAP-TPCV, EVAP-CPCS, BP/EGR-BPV, ⁽⁶⁾ BP/EGR-SOL, BP/EGR-TVS, SPK-CC, AP-AMV, DCLV

2 or 3

3.8L (231") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, SPK-CC

4.1L (252") V6 4-Bbl.

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, SPK-CC

5.0L (307") V8 4-Bbl. & 5.0L (305") V8 TBI

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EVAP-CPCV, EVAP-CPTVS, BP/EGR-BPV, BP/EGR-SOL, SPK-CC, AP-AMV, EFE-TVS

2 or 3

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Some models.

⁽⁴⁾

Firebird.

⁽⁵⁾	Phoenix and 6000.

⁽⁶⁾	Some applications.

1982 Domestic Trucks & Vans

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

Light Duty Emissions (8500 GVWR Or Less)

1.9L (116") 4-Cyl. Carb.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, AIS, ⁽⁴⁾ CEC
EVAP-VC, ACL-BMS, ACL-VM, BP/EGR-BPT, BP/EGR-DV, BP/EGR-TVS, SPK-DVRV, HIC

2.8L (173") V6 Carb.

PCV, ACL, EVAP, OC, ⁽⁴⁾ TWC, FR, ⁽⁵⁾ BP/EGR, SPK, AIS, ⁽⁴⁾ O2S, ⁽⁶⁾ CEC
EVAP-VC, ACL-BMS, ACL-VM, EVAP-CPTVS, ⁽⁷⁾ BP/EGR-BS, BP/EGR-TVS, ⁽⁸⁾ BP/EGR-TCTVS, ⁽⁷⁾ SPK-DV, ⁽⁹⁾ SPK-DRCV, DCLV

4.1L (250") 6-Cyl. Carb.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽⁴⁾ PAIR, EFE
EVAP-VC, ACL-BMS, EVAP-TVS, ⁽⁹⁾ BP/EGR-BS, ⁽⁹⁾ BP/EGR-RST, BP/EGR-TVS, SPK-RDVLV, ⁽⁴⁾ PAIR-DV, EFE-TVS

5.0L (305") V8 Carb.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, ⁽⁷⁾ AIS, EFE
EVAP-VC, ACL-BMS, ACL-VM, ⁽⁴⁾ BP/EGR-BS, BP/EGR-TVS, ⁽⁹⁾ SPK-DVRV, ⁽⁴⁾ AIS-DV, EFE-TVS, ⁽⁴⁾ DCLV

5.7L (350") V8 Carb.

PCV, ACL, EVAP, OC, FR, BP/EGR, SPK, AIS, EFE
EVAP-VC, ACL-BMS, ACL-VM, ⁽⁴⁾ BP/EGR-BS, BP/EGR-TVS, ⁽⁹⁾ SPK-DV, ⁽⁴⁾ AIS-DV, EFE-TVS, ⁽⁴⁾ DCLV

Heavy Duty Emissions (8501 GVWR Or More) ⁽³⁾

4.8L (292") 6-Cyl. Carb.

PCV, ACL, ⁽⁷⁾ EVAP, SPK, AIS
EVAP-VC, ACL-BMS, ACL-VM, SPK-DV, SPK-TVS, AIS-DV

...

5.7L (350") V8 Carb.

PCV, ACL, ⁽⁷⁾ EVAP, SPK, AIS, EFE
EVAP-VC, ACL-BMS, ACL-VM, SPK-TVS, AIS-DV, EFE-TVS

...

6.0L (366") & 7.0L (427") V8 Carb.

PCV, ⁽⁷⁾ ⁽⁵⁾ EVAP, AIS

...

7.4L (454") V8 Carb.

PCV, ACL, ⁽⁷⁾ EVAP, SPK, AIS, EFE
EVAP-VC, ACL-BMS, ACL-VM, SPK-TVS, AIS-DV, EFE-TVS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - TRUCKS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	For emission applications on gasoline-powered motor homes 8501 GVWR or more & built on a motor home chassis, see appropriate CLASS "A" MOTOR HOMES table.

⁽⁴⁾	Some models.

⁽⁵⁾	Vapor canister type.

⁽⁶⁾	Calif. S10/15 only.

⁽⁷⁾	California only.

⁽⁸⁾

A/T only.

⁽⁹⁾	High altitude only.

1982 Class "A" Motor Homes

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

454" V8 Carb.

PCV, ACL, ⁽³⁾ EVAP, ⁽⁴⁾ EGR, ⁽³⁾ SPK, AIS, EFE
EVAP-VC, SPK-TVS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - TRUCKS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California emissions only.

⁽⁴⁾	Some models.

1982 Imported Cars & Trucks

Model, Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

LUV 2-Bbl.

PCV, ACL, ⁽³⁾ EVAP, OC, FR, EGR, AIS, EFE

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - IMPORTED in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Vapor canister type.

1983 Buick (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

1.8L (112") 4-Cyl. TBI

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC
EVAP-VC, SPK-CC

2 or 3

2.0L (122") 4-Cyl. TBI

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, PAIR, O2S, CEC
EVAP-VC, EVAP-CPCV, EGR-CS, SPK-CC, PAIR-ASOV, PAIR-PAV

2.5L (151") 4-Cyl. TBI

PCV, ACL, EVAP, TWC, FR, EGR, SPK, O2S, CEC
EVAP-VC, SPK-CC

2.8L (173") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-CPCV, EGR-CS, SPK-CC, AP-AMV

1 or 4

3.0L (181") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, EGR, SPK, AIS, O2S, CEC, ⁽⁴⁾ EFE
EVAP-VC, EVAP-CPCV, SPK-CC

3.8L (231") V6 Turbo

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AIS, O2S, CEC
EVAP-VC, EVAP-CPCV, EGR-CS, EGR-VRV, SPK-CC

1 or 4

3.8L (231") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AIS, O2S, CEC, ⁽⁵⁾ EFE
EVAP-VC, EVAP-CPCV, EGR-CS, ⁽⁵⁾ EGR-VRV, SPK-CC

1 or 4

4.1L (252") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, EVAP-CPCV, BP/EGR-VSV, SPK-CC, EFE-VSV

2 or 3

5.0L (307") V8 4-Bbl.

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, EVAP-CPCV, EGR-CS, SPK-CC, EFE-TVS

1 or 4

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Electronically controlled.

⁽⁴⁾

Century.

⁽⁵⁾	Some models.

1983 Cadillac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

2.0L (122") 4-Cyl. TBI

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, PAIR, O2S, CEC
EVAP-VC, EVAP-CPCS, EVAP-FBVV, EGR-CS, SPK-EST, PAIR-ASOV

4.1L (250") V8 MFI

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EVAP-CPCS, EGR-CS, SPK-EST, ⁽⁴⁾ SPK-ESC, AP-AMV

6.0L (368") V8 MFI

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EVAP-CPCS, EGR-CS, SPK-EST, AP-AMV, EFE-TVS

6.0L (368") V8 4-Bbl.

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, AP, O2S, CEC, EFE
EVAP-VC, EGR-TVS, SPK-EST, EFE-TVS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS under DOMESTIC CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Electronically controlled.

⁽⁴⁾	Some models.

1983 Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

5.7L (350") V8 MFI

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC
EVAP-VC, EVAP-CPCV, BP/EGR-CS, SPK-EST, AIS-AMV

2 or 3

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS under DOMESTIC CARS in EGR FUNCTION TESTING section. Use specified test number.

1983 Chevrolet - Except Corvette (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

1.6L (98") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC
EVAP-VC, EVAP-CPCV, ⁽³⁾ SPK-TCS, AIS-AMV, DCLV

2 or 3

2.0L (122") 4-Cyl. TBI

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, PAIR, O2S, CEC
EVAP-VC, EVAP-CPCV, BP/EGR-CS, SPK-EST, PAIR-ASOV, PAIR-PAV, ⁽³⁾ DCLV

2 or 3

2.5L (151") 4-Cyl. TBI

PCV, EVAP, TWC, FR, ⁽⁴⁾ EGR, SPK, O2S, CEC
EVAP-VC, SPK-EST

2 or 3

2.8L (173") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC
EVAP-VC, EVAP-CPCV, BP/EGR-CS, SPK-EST, AIS-AMV, DCLV

2 or 3

3.8L (229") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, EVAP-CPCV, BP/EGR-CS, SPK-EST, AIS-AMV, EFE-TVS

2 or 3

3.8L (231") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC, ⁽³⁾ EFE
EVAP-VC, EVAP-CPCV, BP/EGR-CS, ⁽³⁾ BP/EGR-VRV, SPK-EST, DCLV

2 or 3

4.4L (267") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, EVAP-CPCV, EVAP-CPTVS, BP/EGR-BPV, BP/EGR-SOL, SPK-EST, AIS-AMV, EFE-TVS

2 or 3

5.0L (305") V8 FI

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC
EVAP-VC, EVAP-CPCV, BP/EGR-CS, SPK-EST, AIS-AMV

2 or 3

5.0L (305") V8 4-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, EVAP-CPCV, BP/EGR-CS, AIS-AMV, SPK-EST, EFE-TVV

2 or 3

5.7L (350") V8 4-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, EVAP-CPCV, BP/EGR-CS, SPK-EST, AIS-AMV, EFE-TVS

2 or 3

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Some applications.

⁽⁴⁾	Electronically controlled.

1983 Oldsmobile (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

1.8L (112") 4-Cyl. TBI

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, O2S, CEC
EVAP-VC, SPK-EST

2 or 3

2.0L (122") 4-Cyl. TBI

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, PAIR, O2S, CEC
EVAP-VC, EVAP-CPCV, EGR-CS, SPK-EST, PAIR-ASOV, PAIR-ACV

2.5L (151") 4-Cyl. TBI

PCV, ACL, EVAP, TWC, FR, EGR, SPK, O2S, CEC
EVAP-VC, SPK-EST

2.8L (173") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-CPCV, EGR-CS, SPK-EST, AP-AMV

3.0L (181") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC, ⁽⁴⁾ EFE
EVAP-VC, EVAP-CPCV, SPK-EST

2 or 3

3.8L (231") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AIS, O2S, CEC, ⁽⁵⁾ EFE
EVAP-VC, EVAP-CPCV, EGR-CS, SPK-EST

4.1L (252") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, EVAP-CPCV, BP/EGR-VSV, SPK-EST

2 or 3

5.0L (307") V8 4-Bbl.

PCV, ACL, EVAP, TWC, FR, ⁽³⁾ EGR, SPK, AIS, O2S, CEC, EFE
EVAP-VC, EVAP-CPCV, EGR-CS, EFE-TVS, SPK-EST

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Electronically controlled.

⁽⁴⁾	Ciera only.

⁽⁵⁾	Some models.

1983 Pontiac (Domestic Cars)

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

1.6L (98") 4-Cyl. 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-CPCV, ⁽³⁾ SPK-TCS, AP-AMV

2 or 3

1.8L (112") 4-Cyl. TBI

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, ⁽⁴⁾ AIS, O2S, CEC
EVAP-VC, SPK-CC

2 or 3

2.0L (122") 4-Cyl. TBI

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, PAIR, O2S, CEC
EVAP-VC, EVAP-CPCV, BP/EGR-CS, SPK-CC, PAIR-ASOV, PAIR-PAV

2 or 3

2.5L (151") 4-Cyl. TBI

PCV, ACL, TWC, FR, EGR, SPK, AIS, O2S, CEC
EVAP-VC, SPK-CC

2.8L (173") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-CPCV, BP/EGR-CS, SPK-CC, AP-AMV

2 , 3 or 4

3.8L (231") V6 2-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AIS, O2S, CEC, ⁽³⁾ EFE
EVAP-VC, EVAP-CPCV, BP/EGR-CS, SPK-CC

2 , 3 or 4

5.0L (305") V8 EFI

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC
EVAP-VC, EVAP-CPCV, BP/EGR-CS, SPK-CC, AP-AMV

2 or 3

5.0L (305") V8 4-Bbl.

PCV, ACL, EVAP, TWC, FR, BP/EGR, SPK, AP, O2S, CEC, EFE
EVAP-VC, EVAP-CPCV, BP/EGR-CS, SPK-CC, AP-AMV, EFE-TVS

2 , 3 or 4

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS under DOMESTIC CARS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	Some applications.

⁽⁴⁾	Except Federal.

1983 Domestic Trucks & Vans

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

Light Duty Emissions (8500 GVWR Or Less)

1.9L (116") 4-Cyl. Carb.

PCV, ACL, EVAP, TWC, FR, BP/EGR, ⁽⁴⁾ SPK, AIS, ⁽⁴⁾ CEC
EVAP-VC, ACL-BMS, BP/EGR-BPT, BP/EGR-TVS, AIS-DV, HIC

2.0L (122") 4-Cyl. Carb.

PCV, ACL, EVAP, OC, FR, EGR, SPK, AIS
EVAP-VC, EVAP-CPTVS, EGR-BS, EGR-DV, EGR-TVS, SPK-TVS

2.8L (173") V6 Carb.

PCV, ACL, EVAP, ⁽⁴⁾ TWC+OC, FR, BP/EGR, SPK, AIS, ⁽⁵⁾ O2S, ⁽⁴⁾ CEC
ACL-BMS, EVAP-VC, EVAP-CPTVS, ⁽⁶⁾ BP/EGR-TCTVS, BP/EGR-TVS, ⁽⁷⁾ SPK-DV, ⁽⁸⁾ SPK-DVRV, ⁽⁸⁾ SPK-TVS, DCLV

4.1L (250") 6-Cyl. Carb.

PCV, ACL, EVAP, TWC, FR, ⁽⁷⁾ BP/EGR, SPK, ⁽⁷⁾ PAIR, CEC, EFE
ACL-BMS, ACL-VM, EVAP-VC, EVAP-TVS, ⁽⁸⁾ BP/EGR-BS, BP/EGR-TVS, SPK-RDVLV, ⁽⁷⁾ PAIR-DV, EFE-TVS, DCLV

5.0L (305") V8 Carb.

PCV, ACL, EVAP, TWC, FR, ⁽⁷⁾ BP/EGR, SPK, AIS, ⁽⁵⁾ CEC, EFE
ACL-BMS, EVAP-VC, ⁽⁷⁾ BP/EGR-BS, BP/EGR-TVS, SPK-DV, AIS-DV, EFE-TVS, DCLV

5.7L (350") V8 Carb.

PCV, ACL, EVAP, OC, FR, EGR, SPK, AIS, ⁽⁴⁾ CEC, EFE
ACL-BMS, ACL-VM, EVAP-VC, ⁽⁷⁾ EGR-BS, EGR-TVS, SPK-DV, AIS-DV, EFE-TVS, DCLV

Heavy Duty Emissions (8501 GVWR Or More) ⁽³⁾

4.8L (292") 6-Cyl. Carb.

PCV, ACL, SPK, AIS
ACL-BMS, ACL-VM, SPK-TVS, AIS-DV, DCLV

...

5.7L (350") V8 Carb.

PCV, ACL, ⁽⁴⁾ EVAP, SPK, AIS, EFE
EVAP-VC, ACL-BMS, ACL-VM, AIS-DV, EFE-TVS, SPK-TVS

...

6.0L (366") & 7.0L (427") V8 Carb.

PCV, ⁽⁴⁾ ⁽⁹⁾ EVAP, AIS

...

7.4L (454") V8 Carb.

PCV, ACL, ⁽⁴⁾ EVAP, SPK, AIS, EFE
EVAP-VC, ACL-BMS, ACL-VM, SPK-TVS, AIS-DV, EFE-TVS

...

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - TRUCKS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	For emission applications on gasoline-powered motor homes 8501 GVWR or more & built on a motor home chassis, see appropriate CLASS "A" MOTOR HOMES table.

⁽⁴⁾	California only.

⁽⁵⁾	Some models.

⁽⁶⁾

A/T only.

⁽⁷⁾	Some models are electronically controlled.

⁽⁸⁾	High altitude only.

⁽⁹⁾	Vapor canister type.

1983 Class "A" Motor Homes

Engine & Fuel System

⁽¹⁾ Emission Control Systems & Devices

⁽²⁾ EGR Test No.

454" V8 Carb.

PCV, ACL, ⁽³⁾ EVAP, ⁽⁴⁾ EGR, ⁽³⁾ SPK, AIS, EFE
EVAP-VC, SPK-TVS

⁽¹⁾	Major emission control systems and devices are listed in bold type. Components and other related devices are listed in light type.

⁽²⁾	See GENERAL MOTORS - TRUCKS in EGR FUNCTION TESTING section. Use specified test number.

⁽³⁾	California emissions only.

⁽⁴⁾	Some models.

RENDER: 1.0x

NO RELATED

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• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.