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Engine rev bouncing a little

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    Engine rev bouncing a little

    Occasionally my engine will bounce between about 1800 and 2000 rpm. Seems to happen when the engine is coming down from above 2k after releasing the throttle. Happens when cold, but will also happen after running a while. Applying the throttle kicks it back to normal.

    Stock M20. 325i, auto trans .. . I cleaned my TB and ICV and replaced the TPS about 10 months ago, I don't recall if was happening before then. Any other thoughts, or do I just live with it?
    '89 lachssilber vert - Frau Blücher
    '84 alpine 2dr - gone to the great beyond...
    '00 titanium 4dr e46 - bricked
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