Gasping for air!

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  • newsh
    S2Forum Obsessed
    • Aug 2003
    • 16226
    • Country: United Kingdom

    #16
    Ok yes, check the ISV and check that the throttle position sensor switch contacts are closing at closed throttle.

    S2 Coupe 3B Project


    Ur quattro restoration

    S2 Avant

    Boost is the new rock and roll!
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    • 1fastben
      S2Forum Buff
      • Jun 2006
      • 33
      • Country: United States

      #17
      Okay, just a couple thing to report for now. I cleaned the ISV quite thoroughly over the period of about 24 hours; lots of soaking in WD40. I didn't clean the electrical contacts, they didn't seem too bad, well, that and I didn't have any cleaner for them. So I hooked it back up, and its still the same result: engine starts, idles normal for a few seconds, then dies. I plan on pulling the codes tomorrow or Wednesday, (I have to make the little LED light tester thing for it, and I have to do that at work because I don't have a soldering iron). I noticed another thing that maybe isn't directly effecting it, but maybe it is: I have a fuel leak in the engine bay. Facing the engine, its the left braided steel fuel line, and it seems to leak a good deal.

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      • terrybullwon
        S2Forum Zealot
        • Mar 2006
        • 8782
        • Country: England

        #18
        I have a fuel leak in the engine bay. Facing the engine, its the left braided steel fuel line, and it seems to leak a good deal.
        Now that could do it because if there is not enough pressure at the regulator it wont like it much at all, did you use any thing else to clean your isv other than WD40?
        Chef

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        • 1fastben
          S2Forum Buff
          • Jun 2006
          • 33
          • Country: United States

          #19
          Nope, just WD40 and Q-tips cotton swabs to help get more of the junk out. Thats what John and one of my freinds here in Utah said to use.

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          • 1fastben
            S2Forum Buff
            • Jun 2006
            • 33
            • Country: United States

            #20
            New update time! I FINALLY got the fuel lines I ordered in the mail today and put them in. The leak has stopped, but the same thing is happening as before. I haven't yet pulled the codes from the car, partially due to the fear that I'll accidentally cross something and melt the computer. But, I'm running out of options...so I guess I'll have to do it...

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            • GeorgeS2UK
              S2Forum Addict
              • Oct 2004
              • 225
              • Home: England

              #21
              Originally posted by 1fastben
              New update time! I FINALLY got the fuel lines I ordered in the mail today and put them in. The leak has stopped, but the same thing is happening as before. I haven't yet pulled the codes from the car, partially due to the fear that I'll accidentally cross something and melt the computer. But, I'm running out of options...so I guess I'll have to do it...
              Did you ever get to the bottom of your Idle fault, I have similar symptoms

              Thanks in advance

              George
              91 S2 3B in Pearl, Miltek, De-Cat pipes, Short Shifter, 996 Monoblocks + 323 A8 Discs, Whiteline R-ARB:MRC Generic 3B Chips
              .

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              • A80Avant
                S2Forum Obsessed
                • Sep 2005
                • 10873
                • Country: Greece

                #22
                the MAF you bought from the used parts may also be gone.You need to try a new one,or have someone lend you one that surely works.Other than that,you could also have a coil /spark problem.Check if they are sitting correctly and if there is good ground connections as well.Last time i had a rough idle with lots of rich mixture,my ground leads from the ECU where loose.

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