Search Results for ‘c4’

My 92 is showing me diagnostic codes #27 and #36. #27 is a quad-driver module #2 circuit - but I can't find any explanation as to what circuits/actuators/etc it controls. #36: Opti-Spark Ignition Timing System. (High Resolution Pulse.) My ECM was rebuilt about 5 years ago and recently my 92...

My 86 c4 z51 tail lights and parking lights stay on even after turning switch off. With drivers door open the alarm to let me know the lights are on is sounding. How do I fix this it is draining my battery?

I have a 1988 C4 that I had to replace the wiring harness and before installing. I made sure all joints were soldered and all wires were good. When finished installing I did not have my instrument cluster. I do have all the idiot light, blinkers, high beams. They bright and dim as they are...

I'm inheriting a C4 from an uncle. It's an '87(?) with a 4+3 and a soft top. The cloth is in bad shape and I suspect even the convertible frame needs replacement. Rather than spend the time and money, since I will be using this car for track/hillclimb/autocross duty, I'd prefer to use a...