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White smoke misfire help !

Discussion in 'A8/S8 forum' started by Turbo_scotty, Apr 20, 2014.

  1. Turbo_scotty

    Turbo_scotty Member

    Apr 17, 2014
    Likes Received:
    my 3.0tdi 05 a8 has developed a heavey misfire/judder on idle if you rev is you can clear it and it smokes badly also (white) everything lead to injectors .

    I've recently changed injectors myself coded ect via vag com but still no joy no fault codes

    Although I have noticed that if you remove the swirl flap arm from the right bank and open it manually it runs spot on !

    So runs lumpy when closed on idle but runs fine when open I'm confused any help would be great

    Cheers Scott
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  3. B5NUT

    B5NUT Well-Known Member
    VCDS Map User

    Feb 6, 2010
    Likes Received:
    Are the motors controlling the swirl flaps faulty, as its a common failure.

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