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K: e30 318i -> m50b25 swap /problem

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  • RagnarM
    Bimmer Rookie
    • Oct 2014
    • 58
    • Raisio

    K: e30 318i -> m50b25 swap /problem

    I have 86 year e30 preface.

    I have m50b25 under hood, connected wires by m50swap "howto" requires... But heres a "little" problem.. I dont have spark at all... But it gets power on ignition..

    Could some1 help ??
  • Make H.
    BTCF Member
    • Jul 2006
    • 1278
    • Kokkola

    #2
    Pls post your wiring diagram...could also check the crank position sensor? Does the fuel pump work?

    Comment

    • RagnarM
      Bimmer Rookie
      • Oct 2014
      • 58
      • Raisio

      #3
      I found the prob. I may have wrong ecu.. I need 413 bosh ecu with red sticker.. Am going to check the crank sensor anyways..

      M50b25 fuel pump doesnt work until i get spark..

      All wiring is done 100% correctly

      Comment

      • Make H.
        BTCF Member
        • Jul 2006
        • 1278
        • Kokkola

        #4
        Originally posted by RagnarM View Post
        I found the prob. I may have wrong ecu.. I need 413 bosh ecu with red sticker.. Am going to check the crank sensor anyways..

        M50b25 fuel pump doesnt work until i get spark..

        All wiring is done 100% correctly
        If you have vanos ecu in non-vanos car it doesn't run even though it starts, but yet the fuel pump should run for 1-2 sec when you turn ign. switch on....

        Comment

        • RagnarM
          Bimmer Rookie
          • Oct 2014
          • 58
          • Raisio

          #5
          Heres the BIGGEST problem, i found out today.. Its not an m50b25 its m50b20.
          Guy sold me wrong motor...

          And the problem why it dosnt start is the CRANK SENSOR witch doesnt work, and thats why ecu doesnt give the spark..

          If any1-s interesting then the motor pkt. Is for sell... Whole package incl gearbox,ecu,wiring, allthe stuff u need.

          Comment

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