Problem at high rpms

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  • Rozvor
    S2Forum Hobbyist
    • Feb 2009
    • 10
    • Country: Spain

    #1

    Problem at high rpms

    Hi

    I have a problem with my car. When he arrives at 6000rpm and the turbo begins to blow the car makes some explosions as if cut off the injection

    What is the problem?

    Thanks
  • GazzaG60
    S2Forum Freak
    • Mar 2007
    • 4133
    • Country: United Kingdom

    #2
    did you hit 88mph?

    Comment

    • quattro
      S2Forum Maniac
      • Dec 2004
      • 768
      • Home: Wales Current: England

      #3
      coil packs failing under load?
      Probably the longet S2 project in history EVER!

      Comment

      • GazzaG60
        S2Forum Freak
        • Mar 2007
        • 4133
        • Country: United Kingdom

        #4
        not sure. i got a coilpack type thing now. when i hit 1.4 bar it sounds and feels like its a stammer. wind off to 1.2bar and its fine. damn old crap. these are about 3x better than the subaru ones though but they mnever have output stage problems.

        is this not a fuel/boost type cut thing. expect paul may be able to help. not sure how motronic judges boost and whether it has a boostover rpm table not to be exceeded.

        Comment

        • UrS4boy
          S2Forum Obsessed
          • Feb 2006
          • 11859
          • Country: Canada

          #5
          My guess is you have a dieing/weak coil. You need to check your coils for relative strength and probably replace the weakest one(s). Have a look at this, it will help you figure out which is the bad coil:

          http://forums.audiworld.com/showthread.php?p=18838360
          RS2'd 93 UrS4 5 spd sedan
          94 UrS4 V8 6 spd manual avant

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