Fig 1: MAP, IAC, ECT, TP Sensors Component View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Manifold Absolute Pressure (MAP) Sensor
2	Idle Air Control (IAC) Valve
3	Engine Coolant Temperature (ECT) Sensor
4	Throttle Position (TP) Sensor

Fig 2: Rear Of Engine Compartment, On Top Rear Of Engine Component View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Secondary Air Injection (AIR) Shut-Off Valve Assembly

Fig 3: Left Front Corner Of Engine Compartment Component View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Mass Air Flow (MAF) Sensor
2	Powertrain Control Module (PCM), Under the Air Cleaner Assembly

Fig 4: EVAP Purge Solenoid and EGR Valve Component View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Evaporative Emission (EVAP) Purge Solenoid
2	Exhaust Gas Recirculation (EGR) Valve

Fig 5: CKP B, CKP A, Engine Oil Pressure Switch and Engine Oil Level Switch Component Locator

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Crankshaft Position (CKP) Sensor B
2	Crankshaft Position (CKP) Sensor A
3	Engine Oil Pressure (EOP) Switch
4	Engine Oil Level Switch

Fig 6: Engine Compartment, Top Of Engine Routing View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	C139 (C140 Similar)
2	Ignition Coil/Module 8 (7 similar)
3	Ignition Coil/Module 6 (5 similar)
4	Ignition Coil/Module 4 (3 similar)
5	Ignition Coil/Module 2 (1 similar)

Fig 7: CMP, VSS, and HO2S Bank 1 Sensor 1 Component View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Camshaft Position (CMP) Sensor
2	Vehicle Speed Sensor (VSS)
3	Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1

Fig 8: HO2S Bank 1 Sensor 2 Component View (Post HO2)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	HO2S Bank 1 Sensor 2 (Post HO2)

Fig 9: HO2S Bank 2 Sensor 1 Component View (Front HO2)

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	HO2S Bank 2 Sensor 1 (Front HO2)

Fig 10: Knock Sensors Component View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Knock Sensor 1 (Knock Sensor 2 Similar)

Fig 11: View Of Secondary AIR Relay & Bracket

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Secondary Air Injection (AIR) Pump Relay
2	Coolant Level Switch (in Coolant Surge Tank)

Fig 12: Secondary Air Injection (AIR) Pump Component View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Secondary Air Injection (AIR) Pump

Fig 13: Fuel Rail Assembly Component View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Fuel Injector Retaining Clip
2	Fuel Injector
3	Fuel Rail Assembly

Fig 14: EVAP Vent Solenoid Component View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Retainer
2	Fresh Air Line
3	Bolt
4	Evaporative Emission (EVAP) Canister Vent Solenoid
5	Evaporative Emission (EVAP) Canister Vent Solenoid Electrical Connector

Fig 15: Fuel Tank Pressure Sensor Component View

Courtesy of GENERAL MOTORS CORP.

Callout	Component Name
1	Fuel Sender Access Panel
2	Fuel Pump and Sender Assembly
3	Fuel Tank Pressure (FTP) Sensor

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• 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.

Safety Warning

Engine Controls Component Views

Use the Manual With the Right Hardware

When to See a Mechanic

Rather have a pro handle this?