obd2 speed signal

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  • MIKe30
    R3VLimited
    • Sep 2006
    • 2334
    #1

    obd2 speed signal

    I'm getting a no vehicle speed signal code. According to my wiring harness, my blue/yellow pin 14 body side vehicle speed signal (90 325is) is being connected to the white/green pin 19 on the engine harness side, supposedly "speed out".

    Is that correct? I just spent $25 on a crappy haynes manual hoping I could confirm that white/green-speed out wire is the correct one after spending a bunch of time searching on here fruitlessly, and it didn't answer shit.

    If it is right, then I have other problems on my hands...
    Tags: None
    • FredK
      R3V OG
      • Oct 2003
      • 14745
      #2
      on an OBD-II car, x20 WT/GN pin 19 is S/A reset/service interval indicator reset, not vehicle speed output.

      Vehicle speed output is x20 BR/RD pin 9.

        Comment

        • MIKe30
          R3VLimited
          • Sep 2006
          • 2334
          #3
          Originally posted by FredK
          on an OBD-II car, x20 WT/GN pin 19 is S/A reset/service interval indicator reset, not vehicle speed output.

          Vehicle speed output is x20 BR/RD pin 9.
          uh oh.

          service interval reset must be different from code reset then. My code reset seems to work fine.

          Looking at the haynes I bought, the vss was br/rd inside the e36 cluster, but that didnt necessarily mean it was in the harness too (which it doesnt show).

          Thanks fred, will try that now. Any idea what the wt/gn pin 19 s/a reset/service interval indicator reset should go to on the e30 body plug? If it doesn't reset the oil service ligts on the cluster i'll just leave it off.

            Comment

            • FredK
              R3V OG
              • Oct 2003
              • 14745
              #4
              I am not sure about that? If you can reset the SI lights, I'd say, tape that sucker off.

                Comment

                • MIKe30
                  R3VLimited
                  • Sep 2006
                  • 2334
                  #5
                  Fred you da man, y0! at least for now **knock on wood** :mrgreen:

                  drove about 10 miles, VSS issue did not come back up.

                  down to maf, evap running losses, and a vacuum leak. baby steps...

                    Comment

                    • flyboyx
                      R3V OG
                      • Sep 2008
                      • 8371
                      #6
                      evap running losses could be a couple of things. as matt mentioned, that is apparently the plug that goes to the obd2 fuel pressure regulator. also, i think you get that message when you don't have a fuel pressure sensor hooked up. as we were talking on the phone today about the x6031 my fuel pressure sensor wires run through that plug. talking to luis a few months ago, he said that he didn't have a fuel pressure sensor hooked up on his car. i believe he said that he synthesized it somehow. by the way, how do you have your fuel pump relay wired up?

                      oh, by the way, your #11 wht/blu on the e30 body goes to x20 pin #19 grn/wht. that will make your si reset work.
                      Last edited by flyboyx; 10-03-2009, 03:47 PM.
                      sigpic
                      Gigitty Gigitty!!!!

                      88 cabrio becoming alpina b6 3.5s transplanted s62
                      92 Mtech 2 cabrio alpinweiss 770 code
                      88 325ix coupe manual lachsilber/cardinal
                      88 325ix coupe manual diamondschwartz/natur
                      87 e30 m3 for parts lachsilber/cardinal(serial number 7)
                      12 135i M sport cabrio grey/black

                        Comment

                        • flyboyx
                          R3V OG
                          • Sep 2008
                          • 8371
                          #7
                          Originally posted by FredK
                          on an OBD-II car, x20 WT/GN pin 19 is S/A reset/service interval indicator reset, not vehicle speed output.

                          Vehicle speed output is x20 BR/RD pin 9.
                          this one is going to be a problem for me as well. unfortunately, i don't have anything in my x20 pin #9 location. anyone have any other ideas?
                          sigpic
                          Gigitty Gigitty!!!!

                          88 cabrio becoming alpina b6 3.5s transplanted s62
                          92 Mtech 2 cabrio alpinweiss 770 code
                          88 325ix coupe manual lachsilber/cardinal
                          88 325ix coupe manual diamondschwartz/natur
                          87 e30 m3 for parts lachsilber/cardinal(serial number 7)
                          12 135i M sport cabrio grey/black

                            Comment

                            • matt
                              No R3VLimiter
                              • Oct 2003
                              • 3731
                              #8
                              Find it at the ECU connector and trace the wire.

                                Comment

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