yet another no start =/

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  • runnermatt07
    Advanced Member
    • May 2008
    • 117

    #1

    yet another no start =/

    like i said no fuel means no starting, we traced it down though as the dme is not turning on to turn on the fuel pump, searched around and people keep talking about the crank position sensor however i put a brand new one on right before dropping in the engine,

    theres continuity between the ece side of the harness to the pin part, the problem seems to be some wiring on the car side between the ignition and the pin side, (assuming the big ass green power wire)

    my wiring diagram says theres relays down there but i cant for the life of me find them=/ so please help!!!

    engine is grounded, and dme and chip work, engine trys but doesnt fire, thanks again!!

    btw its an 89 325i and 97s52 obd1
  • hi its me alec
    E30 Addict
    • Apr 2008
    • 478

    #2
    We are in the same exact boat. =/

    WTB: early e30 sedan front doors

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    • runnermatt07
      Advanced Member
      • May 2008
      • 117

      #3
      no fun =/

      Comment

      • m3boost
        Advanced Member
        • Oct 2005
        • 110

        #4
        Activate the fuel pump by removing the fuel pump relay and placing a jumper wire between #30 and #87 of the fuel pump relay socket. The OBDI wiring harness has three relays, white, brownish/orange, and blue.

        ...I believe one of them is the main relay.. The fuel pump relay is the blue one...atleast in my wiring harness..I have since replaced cause it went bad..
        88 e30/s50 gt35r turbo m3



        96 gt4094r turbo m3
        452 rwhp, 455 rwtq at 14 psi 91 octane
        681 rwhp, 684 rwtq at 25 psi E65

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