Yet another swap thread, PLEASE HELP

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  • 968Reckless
    E30 Enthusiast
    • May 2013
    • 1095

    #1

    Yet another swap thread, PLEASE HELP

    Trying to wrap this thing up and finally drive it again. Car cranks but won't start. 1997 m3 motor sitting in a 1989 325i.

    What's been done:
    m50 manifold, harness adapter from forum member, DME tune from forum member.

    Have power to DME. No fuel (no power to injectors) and no spark to plugs.

    Cam and crank sensor are believed to be hooked up right and working (I pulled the engine out of a running car). Relays are good and I even swapped 100% working ones in. Grounds all seem to be good. Not sure where to go from here.

    Only things a physically removed:
    Purple relay, SAP stuff. The stock 325 harness already had power running there so it felt redundant. Rear o2 sensors are not hooked up and only one front is.

    FIXED: bad harness


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    Last edited by 968Reckless; 08-25-2017, 06:02 AM.
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  • 328ijunkie
    Forum Sponsor
    • May 2007
    • 3961

    #2
    Who flashed DME? Sounds like usual ews if DME is powered but not firing?

    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!
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    OBD2 Tuning Available! OBD2 E36, S54 Swap, S62 Swap, etc: tuning@MarkertMotorWorks.com Dyno Thread

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    • 968Reckless
      E30 Enthusiast
      • May 2013
      • 1095

      #3
      Originally posted by 328ijunkie
      Who flashed DME? Sounds like usual ews if DME is powered but not firing?


      DesertBMW, he's been very helpful and responsive....


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      • 968Reckless
        E30 Enthusiast
        • May 2013
        • 1095

        #4
        Any other suggestions?


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        • 328ijunkie
          Forum Sponsor
          • May 2007
          • 3961

          #5
          You plugged into ecu and read codes? That will tell you 100% if it's ready to fire. Usually I see harness power/ground issues cause this

          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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          • 968Reckless
            E30 Enthusiast
            • May 2013
            • 1095

            #6
            Originally posted by 328ijunkie
            You plugged into ecu and read codes? That will tell you 100% if it's ready to fire. Usually I see harness power/ground issues cause this


            Not yet, obd2 adapter is on the way.


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            • 968Reckless
              E30 Enthusiast
              • May 2013
              • 1095

              #7
              Bump still no start


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              • raj
                Advanced Member
                • Oct 2013
                • 100

                #8
                Are you getting fuel? Spark?

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                • 968Reckless
                  E30 Enthusiast
                  • May 2013
                  • 1095

                  #9
                  Originally posted by raj
                  Are you getting fuel? Spark?


                  I'm getting fuel to the rail but the injectors aren't getting power. I have no spark.


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                  • raj
                    Advanced Member
                    • Oct 2013
                    • 100

                    #10
                    Originally posted by 968Reckless
                    I'm getting fuel to the rail but the injectors aren't getting power. I have no spark.


                    Sent from my iPhone using Tapatalk
                    Oops, I missed that bit. Just reread the original post.

                    You said the motor came out of a running car. Did that car have the same DME tune in? That seems to be the variable that changed…wafflesI'd try another DME. Sounds like EWS…

                    Triple check grounds.. perhaps the DME needs to be grounded to the chassis. I've read conflicting reports on whether this is necessary (not in my case) but can't hurt

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                    • 2mAn
                      Señior Mod
                      • Aug 2010
                      • 20110

                      #11
                      Originally posted by 968Reckless
                      DesertBMW, he's been very helpful and responsive....
                      and yet, he's not here to help or respond
                      Simon
                      Current Cars:
                      -1966 Lotus Elan
                      -1986 German Car
                      -2006 Volkswagen Jetta TDI

                      Make R3V Great Again -2020

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                      • 968Reckless
                        E30 Enthusiast
                        • May 2013
                        • 1095

                        #12
                        Originally posted by raj
                        Oops, I missed that bit. Just reread the original post.



                        You said the motor came out of a running car. Did that car have the same DME tune in? That seems to be the variable that changed…wafflesI'd try another DME. Sounds like EWS…



                        Triple check grounds.. perhaps the DME needs to be grounded to the chassis. I've read conflicting reports on whether this is necessary (not in my case) but can't hurt


                        I took the ECU from the same car and had it tuned by a company on here. I have a red label 413 on the way to test out. I have all the grounds covered and everything has a clean connection.


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                        • 968Reckless
                          E30 Enthusiast
                          • May 2013
                          • 1095

                          #13
                          Originally posted by 2mAn
                          and yet, he's not here to help or respond


                          I pm'd him and he's responded a few times, no complaints there. I guess I'll know more after I try the red label 413.


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                          • dude8383
                            Forum Sponsor
                            • Jan 2005
                            • 10387

                            #14
                            If the car is utilizing OBD2 sensors you're not going to fire it up with an OBD1 ECU...
                            IG: deniso_nsi Leave me feedback here

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                            • 968Reckless
                              E30 Enthusiast
                              • May 2013
                              • 1095

                              #15
                              Originally posted by dude8383
                              If the car is utilizing OBD2 sensors you're not going to fire it up with an OBD1 ECU...


                              That's what I thought but I kept being told I could....smh


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