it does it all the time and when you are driving it also goes up higher and you have to tap the gas pedal to bring the idle back down.
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1992 Isuzu Amigo Question: my idle speed is around 2000 rpm replaced tps and no change lost any suggestions
Answer #1patrick mannion from Greg Solow's Engine Room, November 12, 2011, 17:56Master
Release the accelerator cable to make sure it is allowing the throttle butterfly to close fully in the throttle housing, after that I would be looking for a vacuum leak.Also make sure the throttle shaft is not badly worn.
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