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Old May 21st, 2013, 09:56 AM   #7
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If not vacuum, then check the IAC (idle air control) Valve - the computer uses that to control the idle speed. May also want to make sure the TPS (Throtle Position Sensor) is working correctly - should read .525 @ idle. Also, check timing (computer disconnected) to make sure it is not too far advanced.

Last edited by Iggy; May 21st, 2013 at 10:00 AM.
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