E30 M3 s50 swap

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  • dcskate102
    Member
    • Dec 2010
    • 40
    #1

    E30 M3 s50 swap

    1988 M3

    Working on diaging a few issues at the moment but i've hit a brick wall.

    1. Cannot get a signal to the tach. I've heard anything from black-black on pin 9 (e30 body side) to hooking it up to the black wire on c103 (which I can't find to save my life)

    2. Coolant temp doesn't work either. From what i've read the e30 m3 wiring color is different than other e30's and I cannot find a guide or diagram for it.

    Also any tips on how to wire the AC properly? I've gotten the hardlines made but giving a signal to the compressor is beyond me.

    Thanks
    Tags: None
    • Mr.SWISS
      E30 Fanatic
      • Nov 2005
      • 1251
      #2
      Make you a deal, I'll trade you a running E30 with a S52 straight across and pick up your car and deliver mine.

      Deal?
      Originally posted by 325Projectz
      don't listen to the diagram... listen to mr. swiss.
      :nice:

        Comment

        • 7pilot
          E30 Addict
          • Feb 2009
          • 475
          #3





          m

            Comment

            • e30s50dan
              R3VLimited
              • Nov 2008
              • 2076
              #4
              Don't forget about your coding plug. Need 6cyl !
              NASA
              BMWCCA member
              PCA member 25yrs




              1991 318IS slick top
              1997 M3 sedan
              2001 325CI DD

              “whoever turns the wheel the least, wins"

                Comment

                • dcskate102
                  Member
                  • Dec 2010
                  • 40
                  #5
                  Originally posted by Mr.SWISS
                  Make you a deal, I'll trade you a running E30 with a S52 straight across and pick up your car and deliver mine.

                  Deal?
                  Make me a cash offer....

                    Comment

                    • samiam3356
                      E30 Mastermind
                      • Jul 2009
                      • 1901
                      #6
                      pics and price? link?

                      Originally posted by Roysneon
                      $5 shipped?
                      Originally posted by MarkD
                      You are a strange dude, I'n not answering any more posts from you.

                        Comment

                        • dcskate102
                          Member
                          • Dec 2010
                          • 40
                          #7
                          Little update

                          Went through the wiring again, tach wires are hooked up correctly so im beginning to thing the tach itself is bad along with the coolant temp. Could this be related to the SI board?

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