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hi,

when I start my 2002 ZTS in the morning when the engine is cold the idle will drop low then bounce up higher then drop low again. it will do this a few times and then it will level out and be normal. any idea what might be causing this? the car runs great otherwise.

thanks a lot
 

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C2H5OH
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11,867 Posts
Possibly an early indication of an EGR problem or a slow Idle Air Control Motor, I would say. But from my don't fix it unless it's broke view, just work with it. When it stops idling then fix it. I procrastinate worse than anyone and seem to find work arounds to not fix things. lol
 
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