M52 into early 318

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  • strang3majik
    Grease Monkey
    • Aug 2012
    • 310
    #1

    M52 into early 318

    I'm picking up an m52b28 here in the next few days from a donor car and I'm kind've confused on what all to collect. Also the wiring aspect.

    For ease of install, it seems collecting all OBD I components would be the easiest route. (my local junkyard has three or four cars with everything I'd need). I could get everything from the donor car for OBDII, but this seems to be a bit overly complicated, especially considering my car is an 84 318.

    What's the recommendation? Also, does anyone have a pinout for the early harness for this conversion?

    Also, what components are needed for the complete OBDI conversion?

    Intake manifold
    Harness
    Ignition Coils
    DME

    what all else?

    I've read tons of threads about this, but, am drawing some blanks on these points.

    Thanks guys. My first swap just trying to get everything before I start tearing anything apart.
    Tags: None
    • 328ijunkie
      Forum Sponsor
      • May 2007
      • 3961
      #2
      Run it OBD2... 84/85 318s are fun to wire. Square C101 plus alotta missing stuff.

      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

        Comment

        • strang3majik
          Grease Monkey
          • Aug 2012
          • 310
          #3
          Lovely...


          Any links to wiring pin outs for the swap for the early square plug?

            Comment

            • 328ijunkie
              Forum Sponsor
              • May 2007
              • 3961
              #4
              Theres a few floating around. I will say, VSS, CEL, Tach, MPG, and a few other things are NOT in 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

                Comment

                • pandaboo911
                  R3VLimited
                  • May 2010
                  • 2070
                  #5


                  you lazy, I would download the full wiring manual and match up the wires.
                  Makes trouble shooting way easier later on.

                  Found here 1984 E30 318i

                  And here 1996 E36 328i


                  please keep it obd2, just swap the manifold
                  Last edited by pandaboo911; 02-12-2014, 02:29 AM.

                    Comment

                    • strang3majik
                      Grease Monkey
                      • Aug 2012
                      • 310
                      #6
                      If the obd2 harness and all was from a manual and I I had all the sensors, maybe then.

                      But I have to pick up most of the sensors anyway, and obd1 is much more readily available at the local yard.

                      I'm poor is the real reason. Lol.

                      But thank you for the pin out and links.

                        Comment

                        • mpowerful
                          E30 Fanatic
                          • Jul 2013
                          • 1273
                          #7
                          Why run it obd2? Wouldnt that include hassle of keeping or deleting the ews?

                            Comment

                            • pandaboo911
                              R3VLimited
                              • May 2010
                              • 2070
                              #8
                              M52 into early 318

                              Obd2 isn't any more of a hassle than converting everything to obd1. It's just an ecu reflash lol

                              You're probably gonna chip your obd1 ecu anyway so just keep it obd2

                                Comment

                                • mpowerful
                                  E30 Fanatic
                                  • Jul 2013
                                  • 1273
                                  #9
                                  Quite a bit of difference in price though.

                                    Comment

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