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Help help help! Idle problem

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by , 09-10-2011 at 06:40 AM (1679 Views)
Having a problem with my idle. every now and then when i come to a stop my car tends to surge up and down. it does not do it all the time, and some times it is rougher than others. After a couple of surges it goes away, and at times it continues to idle up and down until i drive off. The car is an 01 A4 any ideas?

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Comments

  1. redss70396's Avatar
    Mine is doing the same thing - try turning off the AC and see if it still does it.
  2. z06 vett's Avatar
    i am not a mechanic but i have had this issue,
    is it stock? this is what i had to deal with after it was tuned on a dynojet with efi live.If the air box is different it my need re-calibration?
    mike
  3. z06 vett's Avatar
    i am not a mechanic but i have had this issue,
    is it stock? this is what i had to deal with after it was tuned on a dynojet with efi live.If the air box is different it my need re-calibration? Charley Williams is in your back yard and will fix it.Call him.
    mike
  4. blackzcar's Avatar
    my 99 would do that with no other drive ability problems........busted ring landing cyl #4
  5. Destin's Avatar
    It's a sensor I foret what it's called I fixed mine on the throttle body it's a GM part