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Audi S3 8L N249 valve bypass APY ENGINE 1999

Discussion in 'A3/S3 Forum (8L Chassis)' started by hi456, Sep 16, 2010.

  1. hi456
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    hi456 New Member

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    [Sep 16, 2010]
    i was wondering if anyone could help me out with the bypass on my engine as i heard it is different on this engine could anyone help me out thanks
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  3. The Stig
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    The Stig Member

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  4. rossbrownlee
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    rossbrownlee Ross_S4

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    [Sep 16, 2010]
    Hi456 -

    What I would recommend to you is that before you rip everything out, you trial this modification. this is simple to do, get a 3mm hose tee, take the recirc valve hose, the N112 (secondary air injection solenoid) hose off, and thevac feed hose off the N249. These can then be joinedtogether using the tee which you can cable tie or something to your N249 until you can log or try it out and see if you like it or not.
    That way you can whip it back to standard in a minute if required, then if you want to keep it simply do it proper style andrun the hoses tidily.
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