Overboost ?????

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  • S2 Ant
    S2Forum Possessed
    • Jul 2003
    • 3682
    • Country: United Kingdom

    #16
    is that a lambda error or suggesting the car is running lean?
    Ant

    2007 Mk5 Golf GTi, 3 door, DSG, REVO Stg 2 and other goodies
    2011 Kawasaki Z1000

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    • The Spanish
      S2Forum Maniac
      • Nov 2003
      • 719

      #17
      Originally posted by S2 Ant
      is that a lambda error or suggesting the car is running lean?
      I think is suggesting the car is running lean.
      94' RS2 Coupe TT (Twin Torsen )

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      • wastegates
        S2Forum Addict
        • Dec 2004
        • 351
        • Country: Spain

        #18
        Hello, I am going to change the pressure gauge by other to verify if it measures well, are precision pressure gauges that use in my work of refrigeration. Tomorrow it will prove the one of the photo Greetings Carlos
        Attached Files
        Last edited by wastegates; 20 January 2005, 19:19.
        Charles

        Audi S2 Coupe ABY 1994
        Barcelona

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        • S2 Ant
          S2Forum Possessed
          • Jul 2003
          • 3682
          • Country: United Kingdom

          #19
          If running lean would be well worth replacing the fuel filter as these appear to have caused problem with people in the UK when tuning.

          Wouldnt do any harm to be replaced either way as its bound to have seen a few miles
          Ant

          2007 Mk5 Golf GTi, 3 door, DSG, REVO Stg 2 and other goodies
          2011 Kawasaki Z1000

          Comment

          • porkkis
            S2Forum Extremist
            • Aug 2003
            • 1994
            • Country: Finland

            #20
            You have
            - a faulty oxygen sensor
            or
            - faulty fuel pressure regulator
            or
            - leaky injector
            or
            - major boost / vacuum leak
            or
            - clogged fuel filter as mentioned

            I suspect the first mentioned if it hasn't ever been replaced.
            -

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            • wastegates
              S2Forum Addict
              • Dec 2004
              • 351
              • Country: Spain

              #21
              Hello friends, already I have proven the new pressure gauge and indeed now if I have obtained that the 1,2 pressure arrives at bar. Of all ways I am going to you to explain since it has worked although also I say to you that if this is the way to work of the Overboost he is better to reduce a gear. With a long gear you step on the thorough accelerator and little by little raises the pressure up to 1,2 bar, while energia raises to this pressure the car has little and that is very rare. I believe that the Overboost had to always work that we accelerate to bottom in nobody rpm. a greeting Carlos.

              Si algo no se entiende bién te agradecería Rafael que lo tradujeras bién.
              Charles

              Audi S2 Coupe ABY 1994
              Barcelona

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              • S2 Ant
                S2Forum Possessed
                • Jul 2003
                • 3682
                • Country: United Kingdom

                #22
                certainly made for an interesting read here...

                I learnt that overboost only comes in when floored from v low RPM's as mine was boosting enough but when i floored it from low down it was.

                so all is well i think
                Ant

                2007 Mk5 Golf GTi, 3 door, DSG, REVO Stg 2 and other goodies
                2011 Kawasaki Z1000

                Comment

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