Boardcomputer not working.

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  • Silverboy
    S2Forum Enthusiast
    • Feb 2005
    • 159
    • Home: Norway

    #1

    Boardcomputer not working.

    My BoardComputer is not working. Everything that has to do with fueling shows "0.0".
    Avarage speed and time is working fine, but avarage L/km and km/L i "dead".. km left on the tank shows 2000 untill it flashes "L"..

    I have tried another computer with no other result. The ECU has a chipset now, but was not working while stock eighter..
    Car is a 91 3B

    Any ideas? From which sensors does the boardcomputer get its information?

    The car is also running a little hot.. 1 pull and the turbo seems to be glowing..
    I'm starting to think this can have a connection..

    The system don't seem to have any leaks other than a small leak on the vacum side of the turbo when pressurised with the pressure test kit, but this is probably to small to have any leak when not pressurised.
    The TPS is "new", Spark plugs and new magnacore leads, 3" catback exhaust, all the temp and pressure sensors on the engine are new, n75 new, maf almost new, 250kpa map came with the chip, (car seemed to be running hot BEFORE chip aswell..)
    Car runs fine from 3k to 4k, but every now and then it "hessitates" from 4K on full boost. Tried to try a little less trottle but it does not seem to matter.. does not happend every time but 80% of the times..
    idle is fine and the car runs smoothly.

    Have pulled faulty codes a while ago, (car was running hot then also..) and it showed intake pressure to high (hose to map had jumped off) and idle switch open (?) but this was the tps not adjusted correctly. Fixed now but have not connected the vagcom after this.. but it should not show any faults..


  • Silverboy
    S2Forum Enthusiast
    • Feb 2005
    • 159
    • Home: Norway

    #2
    No one knows from where it get its signals/ values ?

    Comment

    • Silverboy
      S2Forum Enthusiast
      • Feb 2005
      • 159
      • Home: Norway

      #3
      no one knows? total mystery??
      troubleshooting guide for the boardcomputer maybe?

      Comment

      • VladaS2
        S2Forum Enthusiast
        • Aug 2006
        • 185
        • Country: Yugoslavia

        #4
        Try s2central.net for ECU info, you might find something there.
        My Online Blog

        Comment

        • Nj
          S2Forum Possessed
          • Jan 2007
          • 3420
          • Home: Scotland Current: Finland

          #5
          try here too mate



          Nj
          --------------------------------------------------------------------
          1990 CQ20v
          2001 3.0 B6 A4 Avant Quattro Sport

          Comment

          • Silverboy
            S2Forum Enthusiast
            • Feb 2005
            • 159
            • Home: Norway

            #6
            Thank's, I will check them out

            Comment

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