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98 A4 TDI 110BHP..Very Sore on fuel

Keithsri Aug 5, 2010

  1. Keithsri

    Keithsri Member

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    Hi guys, so this last wile my a4's gotten very hard to run, i put 30 pound in other day,half a tank (dear as feck over here) lol... and i got roughly 230miles and that was running to the very last drop,and not accelerating at all lol!! I used to get 300 :(

    The car pulls fine,idles fine,i disconnected the maf it ran bad,so it must be fine, i checked for vacuum and boost leaks,found nothing,although when i put the foot down,i do hear abit of a hiss,but i think its normal.... i did clean out the egr and inlet manifold awile back,which lead to actualy a little more smoke but surely it wudnt make worse mpg?? I didnt block it btw,always planned to though??

    Any ideas? getting on vagcom on sat too btw
     
  2. adamss24

    adamss24 Well-Known Member

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    I think you left something disconected, a tdi should run better not worse after you clean the intake and the hissing sound points to air escaping. Check for split boost pipes as well !
     
  3. aragorn

    aragorn "Stick a V8 in it!" Staff Member Moderator VCDS Map User

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    any fault codes?
     
  4. Keithsri

    Keithsri Member

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    Not sure till sat aragon..... when i get it on vagcom.. Gonna change all the vacuum pipes tomorrow and check all the boost pipes again!!
     

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