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 MANUALSCHEVROLET2005OPTRA5 BASE, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCEEMISSIONSSTATE EMISSION STANDARDS - GASTENNESSEE
2005 Chevrolet Optra5 Base, Standard
State Emission Standards - Gas: TENNESSEE
2005 Chevrolet Optra5 Base, StandardSECTION TENNESSEE
TENNESSEE EMISSION STANDARDS - MEMPHIS - IDLE TEST
| Application | HC ppm (CO %) | |
|---|---|---|
| Light Duty Vehicles (9000 GVWR Or Less) | ||
| 1971 & Older | 900 (8.9) | |
| 1972-74 | 700 (8.2) | |
| 1975-79 | 600 (7.5) | |
| 1980 | 400 (4.7) | |
| 1981 & Newer | 220 (1.2) | |
| Heavy Duty Trucks (9001-25, 999 GVWR) | ||
| 1971 & Older | 1000 (8.9) | |
| 1972-74 | 1000 (8.2) | |
| 1975-79 | 1000 (8.0) | |
| 1980 | 800 (6.0) | |
| 1981 & Newer | 400 (4.0) | |
TENNESSEE EMISSION STANDARDS - DAVIDSON & NASHVILLE COUNTIES - IDLE TEST
| Application | HC ppm (CO %) | |
|---|---|---|
| Light Duty Vehicles (6000 GVWR Or Less) | ||
| 1975-77 | 500 (5.0) | |
| 1978-79 | 400 (4.0) | |
| 1980 | 300 (3.0) | |
| 1981 & Newer | 220 (1.2) | |
| Medium Duty Trucks (6001-8500 GVWR) | ||
| 1975-77 | 750 (6.5) | |
| 1978-79 | 600 (6.0) | |
| 1980 | 400 (4.5) | |
| 1981 & Newer | 400 (4.0) | |
TENNESSEE EMISSION STANDARDS - FOUR COUNTY AREA SURROUNDING NASHVILLE - IDLE TEST
| Application | HC ppm (CO %) | |
|---|---|---|
| Light Duty Vehicles (6000 GVWR Or Less) | ||
| 1975-77 | 500 (5.0) | |
| 1978-79 | 400 (4.0) | |
| 1980 | 300 (3.0) | |
| 1981 & Newer | 220 (1.2) | |
| Medium Duty Trucks (6001-8500 GVWR) | ||
| 1975-77 | 750 (6.5) | |
| 1978-79 | 600 (6.0) | |
| 1980 | 400 (4.5) | |
| 1981 & Newer | 400 (4.0) | |
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.