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 MANUALSRENAULT198518I/SPORTWAGON L4-2165CC 2.2LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTEMISSION CONTROL SYSTEMSTESTING AND INSPECTIONINCORRECT CO LEVELS
1985 Renault 18I/Sportwagon L4-2165cc 2.2L
Incorrect CO Levels
1985 Renault 18I/Sportwagon L4-2165cc 2.2LSECTION Incorrect CO Levels
1. Air intake system leaking.
2. Defective pressure regulator.
3. Cold start injector leaking.
4. Defective air sensor.
5. Defective coolant temperature sensor.
6. Defective airflow meter.
7. Incorrect idle speed adjustment.
8. Defective injectors.
9. Incorrect air bypass screw adjustment.
RENDER: 1.0x
NO RELATED
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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.