I have a 1993 Chevy Lumina sedan with 144,000 miles on it. I have replaced the coils and ignition module. It still runs rough. These are the trouble codes I got: 21-Throttle position sensor, voltage high.
35-Idle speed control circuit. 43-Knock sensor circuit.
53-System over voltage. Can you please tell me what these codes mean?
have the same problem?
Friday, April 8th, 2011 AT 4:42 PM