m30b35 in e30 wont spark

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  • willy-guldager
    Noobie
    • Dec 2012
    • 23

    #1

    m30b35 in e30 wont spark

    Hey, so im currently trying to get my m30b35 swap to work in my e30.
    Everything is plugged in but the car wont start. There are no sparks from the spark plugs. I've found a wire which is really bad (see picture)


    Could this be the reason? Also my fuelpump doesnt turn on. When i had my m42 in my engine, when i turned ignition on, you would be able to hear the fuel pump, but it doesnt anymore.
    Is there anyone who could give me a hint maybe?
  • ForcedFirebird
    R3V OG
    • Feb 2007
    • 8300

    #2
    Motronic 1.3 doesn't prime the pump with key on. The engine will run fine with that wire off. Follow that broken wire down to the connector, it's the identical connector to the crank sensor and is easy to mix up. The ECU will not throw spark or turn on the fuel pump if they are reversed.
    john@m20guru.com
    Links:
    Transaction feedback: Here, here and here. Thanks :D

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    • dannyyisntt
      No R3VLimiter
      • Sep 2008
      • 3141

      #3
      Check your crank sensor as well
      sigpic

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      • ForcedFirebird
        R3V OG
        • Feb 2007
        • 8300

        #4
        Originally posted by dannyyisntt
        Check your crank sensor as well
        Yup. Should get 580ohms or so on two of the pins.
        john@m20guru.com
        Links:
        Transaction feedback: Here, here and here. Thanks :D

        Comment

        • Doughnut
          E30 Modder
          • Oct 2007
          • 869

          #5
          Ensure your coil has 12v.
          ///Monstrosity. (OO≡≡[][]≡≡OO)

          Aside from showing yourself to be offensive, lacking experience and ignorant in the ways of business, you're also illiterate and imprudent. Beyond that, your sense of liability is severely impaired.

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