swap finished but won't start

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  • bkslaughterhouse
    Advanced Member
    • Oct 2011
    • 198

    #1

    swap finished but won't start

    I just finished swapping an m42 out of an e36 into my 91 318i and I was positive I did everything right, but it won't start. It's turning over and it's getting fuel and spark so I'm pretty much stumped. Any suggestions?


    1980 320i
    1991 318is
    1997 328i sport
  • bkslaughterhouse
    Advanced Member
    • Oct 2011
    • 198

    #2
    Also all the sensors, intake manifold, wiring, etc. are from the e30


    1980 320i
    1991 318is
    1997 328i sport

    Comment

    • DeM3n
      E30 Fanatic
      • Mar 2005
      • 1260

      #3
      Did you check all your grounds?

      Comment

      • bkslaughterhouse
        Advanced Member
        • Oct 2011
        • 198

        #4
        Yeah all grounds are good


        1980 320i
        1991 318is
        1997 328i sport

        Comment

        • bmwm42
          R3V OG
          • Nov 2010
          • 6300

          #5
          Harmonic balancer 180 out
          Originally posted by bmwm42
          PNW vulture pm me for parts
          Strategic nw e30 command

          Comment

          • bkslaughterhouse
            Advanced Member
            • Oct 2011
            • 198

            #6
            Originally posted by bmwm42
            Harmonic balancer 180 out
            ??


            1980 320i
            1991 318is
            1997 328i sport

            Comment

            • e30Rooster
              E30 Modder
              • Jan 2010
              • 958

              #7
              how do you know its getting fuel and spark?

              -Alex
              sigpic

              Comment

              • bkslaughterhouse
                Advanced Member
                • Oct 2011
                • 198

                #8
                I am using the e30 harmonic balancer could that be my problem?


                1980 320i
                1991 318is
                1997 328i sport

                Comment

                • bkslaughterhouse
                  Advanced Member
                  • Oct 2011
                  • 198

                  #9
                  Originally posted by e30Rooster
                  how do you know its getting fuel and spark?

                  -Alex
                  because fuel comes out of the fuel line when it's unplugged and I turn the key, and can hear my fuel pump working.. I guess i'm not positive about spark but they are new spark plugs and wires put on properly


                  1980 320i
                  1991 318is
                  1997 328i sport

                  Comment

                  • e30Rooster
                    E30 Modder
                    • Jan 2010
                    • 958

                    #10
                    You get a new coil? Its probably a spark problem.

                    -Alex
                    sigpic

                    Comment

                    • bmwm42
                      R3V OG
                      • Nov 2010
                      • 6300

                      #11
                      I doubt its a spark problem does it act like its going to turn on I think your just getting fuel and spark at opposite times kinda like when you have the dizzy 180 out xcept in this case the harmonic balancer
                      Originally posted by bmwm42
                      PNW vulture pm me for parts
                      Strategic nw e30 command

                      Comment

                      • bmwm42
                        R3V OG
                        • Nov 2010
                        • 6300

                        #12
                        Originally posted by e30Rooster
                        You get a new coil? Its probably a spark problem.

                        -Alex
                        These engines have individual coils
                        Originally posted by bmwm42
                        PNW vulture pm me for parts
                        Strategic nw e30 command

                        Comment

                        • 87e30
                          R3V Elite
                          • Jul 2008
                          • 5676

                          #13
                          You can test for spark by trying to arc it to some metal to make sure it's sparking.
                          Originally posted by z31maniac
                          I just hate everyone.

                          No need for discretion.

                          Comment

                          • 10Toes
                            Me Father Was A Tree
                            • Jan 2008
                            • 61222

                            #14
                            Originally posted by bkslaughterhouse
                            because fuel comes out of the fuel line when it's unplugged and I turn the key, and can hear my fuel pump working.. I guess i'm not positive about spark but they are new spark plugs and wires put on properly
                            This does not mean the injectors are spraying fuel. It just means the fuel pump is working.

                            Does your check engine light come on when you are cranking?

                            Comment

                            • djjerme
                              R3V Elite
                              • Sep 2010
                              • 5082

                              #15
                              Are those batch fire on the injectors?
                              1991 325i MT2 Touring (JDM bro)
                              2016 Ford Flex
                              2011 Audi A3 - wife's other German car

                              Comment

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