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Underboost intermittent

Discussion in 'Audi S4/A4/A4 Cab (B7 Chassis)' started by rowdyboy, Jul 7, 2011.

  1. rowdyboy
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    rowdyboy Member

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    [Jul 7, 2011]
    Hi guys, I'm posting on behalf of a mate. He's got a 170 Tdi and says he's getting a "underboost intermittent" fault. I've not asked where he's got the message from or how it's been scanned. Does anyone have any ideas what a cause could be or have you come across it before?
    Cheers.
    #1
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  3. hades-
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    hades- Yorkshire & Humber Rep. Regional Rep VCDS Map User

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    [Jul 7, 2011]
    could realy do with the code he got
    #2

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