Quote:
Originally Posted by [ion] C2
You don't replace the car's VCM for an idle issue... lol.
Could be the TPS. It's going to be a sensor, vacuum line, or intake sealing issue.
Also, we don't have MAFs.
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Ya so update! Car's PCM was reflashed a second time and this time at the GM dealer only for $80 and problem with idle totally fixed. driving it for 3 weeks and no problems! so stuff your "LOL"s Turns out the PCM problem can cause the idle problem.
The reason being is because the computer wasnt properly telling the TPS to open at the proper amount. instead it was telling the TPS to idle at 3% which it should be at 1% open. so a reflash (reprogram) of the PCM fixed the problem. There....you just learned something.