1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

Running rich and jerks on and off the throttle

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

  1. Mattfaced
    Offline

    Mattfaced Member

    Joined:
    Dec 8, 2009
    Messages:
    73
    Likes Received:
    0
    [Feb 16, 2010]
    Dont think its maf related, would the fuel pressure regulator on my fuel rail cause this?
    #1
  2. Ads

    Ads

    [Sep 24, 2014]

  3. tankie2ndrtr
    Offline

    tankie2ndrtr Member

    Joined:
    Jul 13, 2007
    Messages:
    211
    Likes Received:
    0
    [Feb 16, 2010]
    Are the symptoms only when the engine is cold ?...
    #2
  4. Mattfaced
    Offline

    Mattfaced Member

    Joined:
    Dec 8, 2009
    Messages:
    73
    Likes Received:
    0
    [Feb 17, 2010]
    Yeah i seems to be much worse when cold, not the maf just had a new one
    #3
  5. tankie2ndrtr
    Offline

    tankie2ndrtr Member

    Joined:
    Jul 13, 2007
    Messages:
    211
    Likes Received:
    0
    [Feb 18, 2010]
    Could be a coil or wiring loom. If your only idling or crawling along the revs will be lower and the misfire will be more prominent... VAGCOM is prolly the best way to start fault finding, see if its a spark/coil problem rather than a fuel delivery problem...
    #4
  6. Welly
    Offline

    Welly VX220 SC Driver :)

    Joined:
    Aug 5, 2009
    Messages:
    10,699
    Likes Received:
    117
    [Feb 18, 2010]
    Sounds like symptoms of too much fuel pressure I must admit. What is the FPR - 3 BAR or 4 BAR? What engine is it?
    #5
  7. Mattfaced
    Offline

    Mattfaced Member

    Joined:
    Dec 8, 2009
    Messages:
    73
    Likes Received:
    0
    [Feb 18, 2010]
    Just an stadard agu, apart from the remap, symtoms seem to have developed since the remap
    #6

Share This Page