Problems at idle!!!

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  • Azman
    S2Forum Possessed
    • Sep 2005
    • 3205
    • Country: United Kingdom

    #1

    Problems at idle!!!

    Hi guys,

    Right here's one for you!!!

    The car seems to want to idle between 500rpm and 1500rpm. Jumping up and down between the two.

    I have changed and cleaned the ISV (as I have two) and it is still the same.
    All the vaccum lines are new!
    The intake piping is not fully complete yet but willbe shortly. The thing that is bugging me is the car was doing this before I took it off the road to do all the work.

    New loom and full set of new fuses.

    All plumber up right (now anyway)

    Just wondering if you have any clues.

    Oh yes. If I unplug the ISV the car idles nice and smooth at just blow 1Krpm.
    Witht eh isv attatched when starting the car it revs right up to 3Krpm and then starts dancing?????

    This is the next in teh doing my head in saga!!!!

    Other than that the interior starts going back in today

    Cheers Guys
    Az
    Dark Grey Avant
    RS2 FARB
    Powerflex Front wishbone bushes
    Alloy Subframe Bushes
  • Keith
    S2Forum Fanatic
    • Sep 2003
    • 84
    • Country: France

    #2
    Originally posted by Azman
    Hi guys,

    Right here's one for you!!!

    The car seems to want to idle between 500rpm and 1500rpm. Jumping up and down between the two.

    I have changed and cleaned the ISV (as I have two) and it is still the same.
    All the vaccum lines are new!
    The intake piping is not fully complete yet but willbe shortly. The thing that is bugging me is the car was doing this before I took it off the road to do all the work.

    New loom and full set of new fuses.

    All plumber up right (now anyway)

    Just wondering if you have any clues.

    Oh yes. If I unplug the ISV the car idles nice and smooth at just blow 1Krpm.
    Witht eh isv attatched when starting the car it revs right up to 3Krpm and then starts dancing?????

    This is the next in teh doing my head in saga!!!!

    Other than that the interior starts going back in today

    Cheers Guys
    Az
    Have you checked correct timing ???

    Comment

    • martinjs
      S2Forum Possessed
      • Jul 2003
      • 3205
      • Country: England

      #3
      Try another ISV, both could be dodgy?

      Comment

      • Jas11n
        S2Forum Zealot
        • Jan 2004
        • 5067
        • Country: England

        #4
        Lambda probe.
        Check the codes.
        2001 Avus Silver B5 RS4.
        2004 A4 Avant 1.8T quattro Sport-LE.
        1995 S2 Coupe - sold (sniff)

        Comment

        • twoqu
          S2Forum Possessed
          • Sep 2003
          • 3103

          #5
          Hi!
          Could be the TPS. Lou had a similiar problem recently. Should be some info on checking it on this thread.

          Comment

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