Quote:
Originally Posted by Christ
Check the Idle Air Control Valve as well. If it's sticking (it's an actuator/solenoid) it will allow too much air to pass the throttle plate...
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If I could find the damn thing I would. I see nothing on the throttle-body resembling an IAC.
As for your suggestion of data-logging, I have Autotap, (which only reads, it does not program, unfortunately), and most of the numbers seem normal... But then, GM provides no numbers for what is normal for most sensors in the service manual.