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.