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  • #31
    Paul - I have a spare ISV somewhere - doing garage clear out today and finding all sorts of things. Let you know when I find it.

    Happy to do your OBD whenever as well.
    Paul Nugent
    Webmaster http://S2central.net
    Administrator http://S2forum.com

    1994 S2 Coupe ABY - aka Project Lazarus
    2001 A6 allroad 2.5TDi - family tank
    2003 S4 Avant 4.2 V8 - daily burble

    Purveyor of HomeFries and Exclusive agent for Samco hose kits (S2/RS2)

    There are only 10 kinds of people that understand binary - those that do, and those that don't

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    • #32
      Cheers Paul but if ur garage is like mine I wouldn't count on it lol

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      • #33
        image.jpg

        I have found a white 2 pin plug behind the stereo traced it back 2 main loom above blower motor wiring colour blue/black , grey/black, any ideas what it should b connected to if anything , any ideas ?

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        • #34
          Update on obd ,checked continuity at pins 13 and 55 at ecu to eyelets as per pauls advise and found a cut wire at pin 55 ,soldered up and problem solved even wired in a obd port inside car for accessibility.

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          • #35
            Good work!

            S2 Coupe 3B Project


            Ur quattro restoration

            S2 Avant

            Boost is the new rock and roll!
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            • #36
              Hi guys I am having endless problems with my ABY S2. It bucks like crazy under boost and then goes into limp mode. Help please

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              • #37
                Originally posted by Heath View Post
                Hi guys I am having endless problems with my ABY S2. It bucks like crazy under boost and then goes into limp mode. Help please
                You almost certainly have a boost leak
                You need to do a boost leak test.
                Search the forum for how-to.

                S2 Coupe 3B Project


                Ur quattro restoration

                S2 Avant

                Boost is the new rock and roll!
                sigpic

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                • #38
                  The car is over boosting. I checked it with a boost gauge. I bought a spring from 034 but looks like they supplied a 2.2bar absolute pressure spring. I am sure this is the problem. What is the factory documented spec for boost.

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                  • #39
                    2.1 absolute they say:

                    https://www.s2forum.com/forum/techni...problems/page2

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                    • #40
                      Originally posted by Heath View Post
                      The car is over boosting. I checked it with a boost gauge. I bought a spring from 034 but looks like they supplied a 2.2bar absolute pressure spring. I am sure this is the problem. What is the factory documented spec for boost.
                      Put a stock spring in it or get a remap to suit the stronger spring.

                      S2 Coupe 3B Project


                      Ur quattro restoration

                      S2 Avant

                      Boost is the new rock and roll!
                      sigpic

                      Comment


                      • #41
                        Originally posted by Heath View Post
                        The car is over boosting. I checked it with a boost gauge. I bought a spring from 034 but looks like they supplied a 2.2bar absolute pressure spring. I am sure this is the problem. What is the factory documented spec for boost.
                        Put a stock spring in it or get a remap to suit the stronger spring.

                        S2 Coupe 3B Project


                        Ur quattro restoration

                        S2 Avant

                        Boost is the new rock and roll!
                        sigpic

                        Comment

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