OBD1 S52, no fuel, no spark

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  • e30austin
    I waste 90% of my day here and all I got was this stupid title
    • Sep 2010
    • 15382

    #31
    However, maybe something worth nothing...on the X20 side of the AKG adapter compared to my home built adapter (lol,) there were a significant number of pins missing. Same with the C101 side, too.
    '70 911s | '72 2002 | '88 M5 | '89 330is | '89 M3 | '95 911 | '02 M5 | '04 RR HSE

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    • e30austin
      I waste 90% of my day here and all I got was this stupid title
      • Sep 2010
      • 15382

      #32
      Here's the adapter pics.
      Attached Files
      '70 911s | '72 2002 | '88 M5 | '89 330is | '89 M3 | '95 911 | '02 M5 | '04 RR HSE

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      • 328ijunkie
        Forum Sponsor
        • May 2007
        • 3961

        #33
        Well for sure theres no pin 6 so your diag port will never work. Where do they have pin 11 going on the X20?

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        • 328ijunkie
          Forum Sponsor
          • May 2007
          • 3961

          #34
          Check that pin 11. You have 13 pins on each connector but pin 11 isnt 'supposed' to be there on x20. Im betting its connected to something on c101 thats messing things up? They also have pin 20 on the c101 but no idea where its going on the x20

          Check Us out on Facebook
          Needing a harness adapter or wiring help? Check it out: also have 24v motor mounts, E30 M3 covers and E36 ECU mounts!
          Full Product Line Tuning
          OBD2 Tuning Available! OBD2 E36, S54 Swap, S62 Swap, etc: tuning@MarkertMotorWorks.com Dyno Thread

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          • TheRealE30kidd
            E30 Addict
            • Jul 2010
            • 496

            #35
            Pin 11 on the X20 goes to pin 20 on the c101.
            The Current Army
            -(UnderConstruction) 1991 330iS 24v S52 build thread
            -1992 325iC
            -1987 E30 Truck
            -1991 332iS (BecauseRacecar)
            -1988 Dinan M3
            -1988 325iX Tribute car
            -1989 320i Touring (S52/6spd)

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            • 328ijunkie
              Forum Sponsor
              • May 2007
              • 3961

              #36
              well your ABS wont work either...

              Check Us out on Facebook
              Needing a harness adapter or wiring help? Check it out: also have 24v motor mounts, E30 M3 covers and E36 ECU mounts!
              Full Product Line Tuning
              OBD2 Tuning Available! OBD2 E36, S54 Swap, S62 Swap, etc: tuning@MarkertMotorWorks.com Dyno Thread

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              • TheRealE30kidd
                E30 Addict
                • Jul 2010
                • 496

                #37
                Interesting. Also interesting to note the number of pins missing from X20. Think that has something to do with it?
                The Current Army
                -(UnderConstruction) 1991 330iS 24v S52 build thread
                -1992 325iC
                -1987 E30 Truck
                -1991 332iS (BecauseRacecar)
                -1988 Dinan M3
                -1988 325iX Tribute car
                -1989 320i Touring (S52/6spd)

                Comment

                • 328ijunkie
                  Forum Sponsor
                  • May 2007
                  • 3961

                  #38
                  Checked em all. Theyre fine assume they match up properly to the C101.

                  Check Us out on Facebook
                  Needing a harness adapter or wiring help? Check it out: also have 24v motor mounts, E30 M3 covers and E36 ECU mounts!
                  Full Product Line Tuning
                  OBD2 Tuning Available! OBD2 E36, S54 Swap, S62 Swap, etc: tuning@MarkertMotorWorks.com Dyno Thread

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                  • e30austin
                    I waste 90% of my day here and all I got was this stupid title
                    • Sep 2010
                    • 15382

                    #39
                    Originally posted by 328ijunkie
                    Checked em all. Theyre fine assume they match up properly to the C101.
                    So, I guess what I'm asking at this point- could the harness adapter be the cause of no ground signal to main relays? I've literally tried everything else besides that. May just end up modifying the harness to accept a C101 plug, but don't want to do that unless I know that the adapter is the culprit.
                    '70 911s | '72 2002 | '88 M5 | '89 330is | '89 M3 | '95 911 | '02 M5 | '04 RR HSE

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                    • 328ijunkie
                      Forum Sponsor
                      • May 2007
                      • 3961

                      #40
                      Its not looking like it no. The injectors are ground triggered by the ECU, they have constant switched 12v. I would look back at crank sensor/crank pulley as thats really the only thing it relys on to fire them. (again they will batch fire if cam sensor signal is gone or shit)

                      Check Us out on Facebook
                      Needing a harness adapter or wiring help? Check it out: also have 24v motor mounts, E30 M3 covers and E36 ECU mounts!
                      Full Product Line Tuning
                      OBD2 Tuning Available! OBD2 E36, S54 Swap, S62 Swap, etc: tuning@MarkertMotorWorks.com Dyno Thread

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                      • shiboujin
                        R3VLimited
                        • Feb 2006
                        • 2791

                        #41


                        3 wires? 1 should go to the starter and 1 should go to the main harness power. What's the third? From what I recall, there's 2 similar looking wires that come out of a common spot but one is a ground (brown under the insulation) and the other is full power (red under insulation).

                        Edit: Also something looks off about that terminal.

                        Status: HG repair. 488wtq though!

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                        • 328ijunkie
                          Forum Sponsor
                          • May 2007
                          • 3961

                          #42
                          ^Hes got the 2 fusebox pwr wires and then the starter wire. ECU power wire (im pretty sure) is going to the ECU power terminal (little 10 by itself)

                          Check Us out on Facebook
                          Needing a harness adapter or wiring help? Check it out: also have 24v motor mounts, E30 M3 covers and E36 ECU mounts!
                          Full Product Line Tuning
                          OBD2 Tuning Available! OBD2 E36, S54 Swap, S62 Swap, etc: tuning@MarkertMotorWorks.com Dyno Thread

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                          • GUNMEtiL
                            Noobie
                            • Aug 2013
                            • 1

                            #43
                            So any success same prob... Tried red label, silver with complete ews set-up... New cps,...?

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