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 MANUALSCHEVROLET1983EL CAMINO V6-229 3.8LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTOOLS AND EQUIPMENTCOMPUTER COMMAND CONTROL (C-3) SYSTEM
1983 Chevrolet EL Camino V6-229 3.8L
Computer Command Control (C-3) System
1983 Chevrolet EL Camino V6-229 3.8LSECTION Computer Command Control (C-3) System
This system does not require special diagnostic equipment for diagnosis. A dwell meter, tachometer, test light, ohmmeter, digital voltmeter with 10 megohms impedance, vacuum gauge, vacuum pump and jumper wires are required for diagnosis.
Although most dwell meters should be compatible with this system, if one causes a change in engine operation when connected to the mixture control solenoid, it cannot be used. Generally dwell meters that have three leads, two of which are connected to the battery can be used. However, some two lead dwell meters can be used also.
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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.