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Thread: TT-s 2009 erratic idle

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    Tricky

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    TT-s 2009 erratic idle

    image.jpgimage.jpg

    Problem with the wife's car, erratic idle mainly when it's warm. Had a look and can't find any air leaks.

    But Does anybody know what the round part is in the centre of this photo please?
    If I hold my figure over the knobbly bit at one end (with a pin hole in it) the idle all of a sudden revs higher.

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    Tricky

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    Fixed. Changed the part and hey presto. 60 quid including gasket. It's a pressure regulator of some kind. Just in case any other tt owners suffer This.
    45bvtc likes this.

 

 

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