runs rough when cold

nathanC

Registered User
i have a 92 sc with about 94,000 miles and it starts up fine but the engine light comes on almost instantly and the car begins to run rough. the rpms bounce around 400-500 and when u put it in drive or reverse it almost dies then jumps back up to about 500. the car also doesnt want to go past 2000 rpm when in park. as the car warms up it slowly starts to drive better. once it is driven for about 15 mins or so then the engine light turns off and it drives completely fine like nothing was wrong with it. i have replaced the coil pack, oxygen sensors, engine coolant temp sensor and the thermostat. has anyone had the same issues and know what it is or could be? any direction would be great:
 
If it's getting a Check Engine Light...then the computer is also throwing a code for what is wrong. Either go buy a code reader or take it to someone who can read the codes for you (like Autozone), and post the code numbers here.

David
 
Back
Top