I NEED HELP. S50 Content

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  • e30shmobberr
    E30 Mastermind
    • Mar 2010
    • 1934

    #1

    I NEED HELP. S50 Content

    So my pos daily truck broke down last night, and now i have no car. I want to get my s50e30 up in running so i can have a car for my 20 mile commute to school and so i can drive it on my birthday next week. Only problem is if started it would drive, which it doesnt.

    For the life of me I can't seem to get this thing to start! The engine doesnt get fuel when the key is in start, but it gets fuel when I add power to the fuel pump. Along with that there is no spark (jumped the fuel pump to run when key is in start, and no engine fire). I have replaced the crankshaft postion sensor, have used 2 dme's (413 red), replaced the relays, and checked fuses.

    Could my camshaft position sensor or knock sensors be the issue? Trying to get this thing running by sunday, it been way too long since i have started this project.

    Any help is appreciated!

    Patrick - IG:niicknac
    RIP 1987 BMW 325is - S50'd ZF 6-speed, flared, bagged
  • SwiftE30
    E30 Modder
    • Jun 2010
    • 998

    #2
    have you triple checked all your grounds and power wires from the harness? sounds like your whole harness isnt getting any power. most of the time people mistake a power wire for a ground wire because it is black coming out of the harness. (battery side)
    1989 E30 Zinnoberrot Vert 325i OBD1 S52 turbo;IP

    Comment

    • Mr.SWISS
      E30 Fanatic
      • Nov 2005
      • 1251

      #3
      Originally posted by SwiftE30
      have you triple checked all your grounds and power wires from the harness? sounds like your whole harness isnt getting any power. most of the time people mistake a power wire for a ground wire because it is black coming out of the harness. (battery side)
      +1 million faffillion gazillion.
      Originally posted by 325Projectz
      don't listen to the diagram... listen to mr. swiss.
      :nice:

      Comment

      • e30rapidic
        R3VLimited
        • Oct 2003
        • 2167

        #4
        do your relays click when the key is turned on?
        '87 325ic, powered by S50.

        Comment

        • cmybimmer
          E30 Modder
          • Oct 2010
          • 894

          #5
          ECU grounded? That was my problem for the no fuel part..

          Comment

          • 328ijunkie
            Forum Sponsor
            • May 2007
            • 3961

            #6
            C101 wiring?

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            Comment

            • e30shmobberr
              E30 Mastermind
              • Mar 2010
              • 1934

              #7
              Tried my hardest, couldnt get it to start. Fml time for a shop and a lot of money to be thrown away

              Patrick - IG:niicknac
              RIP 1987 BMW 325is - S50'd ZF 6-speed, flared, bagged

              Comment

              • mentaleeill
                E30 Modder
                • Nov 2003
                • 850

                #8
                any chance the crank pos. and cam pos. sensor plugs were switched?

                Comment

                • MaxBell
                  E30 Fanatic
                  • Oct 2010
                  • 1390

                  #9
                  Originally posted by SwiftE30
                  have you triple checked all your grounds and power wires from the harness? sounds like your whole harness isnt getting any power. most of the time people mistake a power wire for a ground wire because it is black coming out of the harness. (battery side)
                  This. Mine was doing that same thing as yours, I had grounded both of my wires, when one is powered and the other is ground.
                  REMEMBER: Be safe and have fun is Rule Number 1.

                  The Epic Unbuild of Clint Eastwood

                  Comment

                  • e30shmobberr
                    E30 Mastermind
                    • Mar 2010
                    • 1934

                    #10
                    I have every casing off the harness so wire colors show. There is no ground wire being powered or visa versa

                    Patrick - IG:niicknac
                    RIP 1987 BMW 325is - S50'd ZF 6-speed, flared, bagged

                    Comment

                    • Teaguer
                      R3V OG
                      • Sep 2004
                      • 6167

                      #11
                      What about Erik ? (from your sig) Is he not available to look it over with you?
                      He's got enough sense to figure it out.

                      E30 M3 / E30 325is / E34 525iT / E34 535i

                      Comment

                      • cmybimmer
                        E30 Modder
                        • Oct 2010
                        • 894

                        #12
                        What have you checked over? Did you triple and quadruple check your harness adapter (if you made one) for correct connections and whatnot? from what motor/car did your engine harness come from? Its always the small shit that delays you after the major parts are done..

                        Comment

                        • Joe G
                          R3VLimited
                          • Apr 2010
                          • 2942

                          #13
                          Ews delete chip? All your c101 connections as they should be? Grounds?

                          My issues were incredibly similar and were resolved via a new Ews delete chip from turner motorsports.


                          Current Car: 2011 BMW 135i, M-Sport, 6 speed

                          Originally posted by lambo
                          Sounds like you need a massage.
                          Originally posted by kpeng
                          Who the hell is Vlad?

                          Comment

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