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When I purchased my brand new 2002 Cadillac SLS Seville, I had a problem with the ideling and also the car would lurch forward every time I put it in drive. I had the dealer replace the idiling chip and it fixed my idleing and lurching problem. You could try this and see if it fixes your problem, or check for recalls with this problem.
If your car stalls while ideling - then check the crank sensor.
It is also good if you purchase a scanner and check which codes are registered by the on-board computer and this could save you some money trying to determine the problem.
The person who gave you this advice are they a trained auto repair tech?? no. Have the dealer test the idle speed control system and see what shows up. DO IT RIGHT AND DON'T LISTEN TO THE MINIMUM WAGE SCREEN READERS AT OREILEY.
Actually that's not that high. If you were above that or it was fluctuating you got a problem like an IAC sensor. You might have a filthy TPS. Clean the throttle bottle wouldn't hurt and why you might be getting different idle RPM's.
Probably not the ECM. Have it scanned. IF is is a 93 it means you have a 4.9 motor. They have a solenoid idle cotroll that could be malfuntioning, there could be a problem with the throttle position sensor, or maf, egr,mass air flow, You get the picture. The light is on to tell you what is happening. Most Autozones and Advances will scan it for free. Good luck.
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