Chris NottSky Insurance
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  1. #1
    1st Gear

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    Question Variable revs when idle !?!?!

    Hi all,

    Hoping you helpful chaps can ... err ... help!

    Recently my 2001 A4 2.0 petrol has been experiencing varying revs when idle. The rev counter sways between 9k - 12k RPM when stationary with my left foot on the clutch, or in neutral, and my right foot nowhere near the throttle. The difference is audible, as if I was pushing/releasing the throttle.

    There's also a noticeable lag when pulling away, but no engine management light or any other symptoms. Not sure if it's related but I had a coilpack go a couple of months back, which I replaced myself.

    Any ideas what the cause could be? It's on 105,000 miles and recently serviced at an independent (who couldn't find a problem).

    Cheers.

    Mike
    Current: Daytona Grey A6 2.0 TDI S-Line 2008
    Gone: Denim Blue A4 2.0 SE 2001

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  3. #2
    1st Gear

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    The rev counter sways between 9k - 12k RPM when stationary


    I hope you mean 900 and 1200 or else your engine is going to blow up pretty soon

  4. #3
    1st Gear

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    Ha! Yes indeed, sorry, you're right.
    Current: Daytona Grey A6 2.0 TDI S-Line 2008
    Gone: Denim Blue A4 2.0 SE 2001

  5. #4
    J7USS's Avatar
    Shuddup Foooool!!

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    @ Blackpool!!

  6. #5
    Broken Byzan's Avatar
    Photographic Moderator

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    Throttle body could prob do with a good clean and an Adaption

 

 

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