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Added sc and chip to ecu now no spark

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    Added sc and chip to ecu now no spark

    I drove a running obd1 M52 swap into the garage in the fall and added a powerdyne charger,3.5 Maf,injectors and swapped the chip that matched the parts and came with the kit I bought from a reputable guy.
    Only wiring was the maf wiring extension,car now has no spark.

    Looking for ideas on what to check,can the chip be installed backwards?.Can the maf extension be causing an issue somehow?.

    I have the car at a shop I trust since I couldn't figure it out but would very much like to shorten the hours they spend on it.

    All ears for ideas.

    Thanks in advance.

    #2
    Check for the coil pulse signal coming from the ecu. If there is no spark signal from the ecu, check the chip. Yes if they have a notch on one end, this indicates orientation and can be set incorrectly. If there is spark however, follow the ignition system to the spark plugs until you find the problem. Are you certain you're getting fuel though?
    Last edited by EatsHondas; 06-16-2015, 11:42 AM.
    1989 325i Lachssilber Sedan
    5-Speed Swapped
    M30B35 Swapped
    MegaSquirt MS3X

    1987 325i Lachssilber Sedan
    260k OEM Automatic Daily Baby

    Comment


      #3
      Originally posted by EatsHondas View Post
      Check for the coil pulse signal coming from the ecu. If there is no spark signal from the ecu, check the chip. Yes if they have a notch on one end, this indicates orientation and can be set incorrectly. If there is spark however, follow the ignition system to the spark plugs until you find the problem. Are you certain you're getting fuel though?
      Thanks,yep lots a fuel but for sure no spark.

      Comment


        #4
        Try out a stock chip or ecu.

        Comment


          #5
          Yes I hope that happens tomorrow with a good result.

          Comment


            #6
            Another question,if I did what I think I did(installed the chip backwards,yes I'm an idiot)the chip is likely toast which sucks a lot but is the dme going to be as well?.
            If I pull it out and find the chip backwards will it ruin my good chip by installing it correctly in this dme?.

            Comment


              #7
              Car runs with the old tune so at least its just the chip and I don't have to hunt down a dme as well.

              Now to see if AA will take pity on me and cut me a replacement for a reasonable fee.

              Comment


                #8
                Ahhh bad luck man, glad you figured it out quickly though.
                1989 325i Lachssilber Sedan
                5-Speed Swapped
                M30B35 Swapped
                MegaSquirt MS3X

                1987 325i Lachssilber Sedan
                260k OEM Automatic Daily Baby

                Comment


                  #9
                  I'd feel better if it was bad luck and not my own foolishness.

                  AA never bothered to respond so I'm going with a TRM custom tune,the credit I get back for the current TRM tune made it a no brainer.

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