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 MANUALSRENAULT198318I 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCESYSTEMFUEL INJECTION SYSTEM - BOSCH AFCTESTINGCOLD START INJECTOR
1983 Renault 18i 4D Sedan, Automatic
Cold Start Injector
1983 Renault 18i 4D Sedan, AutomaticSECTION Cold Start Injector
- Disconnect electrical connector from cold start valve. Connect voltmeter leads between harness terminals and crank engine. Voltage readings should be battery voltage when engine is cold and zero volts when engine is warm. If not, check thermo time switch and electrical circuit.
- Turn engine off and remove voltmeter. Measure resistance of cold start injector. Resistance should be about 4-5 ohms. If not, replace cold start injector.
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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.