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running problems between 3k - 4k

Russ S3 Jul 28, 2008

  1. Russ S3

    Russ S3 New Member

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    I've got a problem if i'm in any gear between 3k and 4k revs and put my foot down it jerks or blips and carrys on i was told to change the N75 valve by the dump valve. And it seems to get worse the hotter it gets its got a forge dv its only about 8 -10 months old if this helps. any help would be great.
     
  2. jamieface

    jamieface the only S3 in the villiage

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    sounds like your MAF. Mass Air Flow sensor. do a search for it and you will find loooaaddssss of threads on it :) easy to oder and easy to change.
     
  3. jesters3

    jesters3 Active Member VCDS Map User

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    Best bet is to get it Vag-com'ed first then start spending your hard earned cash - check out the sticky to see if someone is near you who can have a look.

    On the MAF, unplug it and see how it runs if worse then something else, if better then your MAF needs chaning like jamieface says.
     
  4. abdus

    abdus Top Gear VCDS Map User

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    I have the same problem on my a3. . I have put it on vag-com, no faults, disconnected the maf, nothing better.

    I cleaned the maf, was a bit better, problem seemed to go for a while, then came back again. I guess it might be the maf as suggested above.
     
  5. markyp2002

    markyp2002 Member

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    On an S3 it might be the small T piece on top of the engine related to the N249 valve. Just take the cover off the engine and its there right in front of you. A mess of of pipes and a small T piece in there; possibly snapped! Cheap to fix!
     
  6. Russ S3

    Russ S3 New Member

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    It turned out to be coil pack 1 it was slowley giving up and on friday it caused misfire's and ran very lumpy changed it and sorted straight away . thanks for looking.
     
  7. Russ S3

    Russ S3 New Member

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    mine was a coil pack i popped into audi victoria and £30 later swapped the coil pack and was sweet a better than ever . There where no faults indicated but only when the coil pack gave up then it flagged an alarm. i'd had the problem for a little while. hope this helps.
     
  8. abdus

    abdus Top Gear VCDS Map User

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    Mine has the coil pack on cylinder 3 gone. And spark plugs were black which I guess is running rich, pointing to the MAF as faulty
     

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