Wiring help

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  • Under_Pressure
    Wrencher
    • Sep 2009
    • 254

    #1

    Wiring help

    Ok I'm stuck!
    I cant get the car started for the life of me. So far I have found out that the fuel pump does not turn on. I figured out that when I ground this

    The fuel pump starts right up

    Also the other realay next to it does the same but I have no idea what it does



    All I can think of is that I have my grounds mixed up and or power. From the pics can you tell?






    Now I dont have a MAF pluged in being the fact I dont have one yet but shouldent it start without one anyways? I also need to double check the conections to the sensors but its kinda hard to do so with all the shit in the way. Does anyone have pics of what clip goes to what sensor?
    Tial, Precision, Garrett Dealer!!!
    PM me for more info.
  • sharky
    R3VLimited
    • Jan 2005
    • 2672

    #2
    correct me if I am wrong but isnt that power wire in the last pic ( red shiel at the end of the wire) supposed to be taped off? I did with mine, but my car doesnt get spark so what do I know.

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    • Under_Pressure
      Wrencher
      • Sep 2009
      • 254

      #3
      anyone?
      I have been trying to figure out the online electric trouble shooting guide with no luck
      Tial, Precision, Garrett Dealer!!!
      PM me for more info.

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      • Under_Pressure
        Wrencher
        • Sep 2009
        • 254

        #4
        ok I got it to start but it revs reallll high.... im scared to turn it on longer than 2 secounds.. what can cause this??
        Tial, Precision, Garrett Dealer!!!
        PM me for more info.

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        • Spaz
          Crazy Canuck
          • Oct 2003
          • 2276

          #5
          I'll start with a stuck throttle cable?

          How high is really high?
          Cam .W '91 325is

          Spaz's 1991 Alpine White???? S52 Build Thread...

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          • Under_Pressure
            Wrencher
            • Sep 2009
            • 254

            #6
            tb is closed and the maf is not plug. My rpm tach does not work so I dont know but it keeps going up and its real loud "open header"
            Tial, Precision, Garrett Dealer!!!
            PM me for more info.

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            • bmmf
              Advanced Member
              • Sep 2006
              • 153

              #7
              How did you get the fuel pump to turn on? Are you manually turning it on or did you fix the relay problem. I am having the same issue and same symptoms with my swap and I am pretty sure I don't have spark either.


              Modified E21 Brake Boosters for m5x/s5x swap......... 85 shipped.


              Parts That I'm currently selling

              My EBAY

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              • Under_Pressure
                Wrencher
                • Sep 2009
                • 254

                #8
                Well I got it started but it would rev all the way up so I started looking for vac leaks and found this big ass hole behind the I'm! Found out what I was missing



                on my way home to plug it in and plug it for now to see if it idels right.
                Tial, Precision, Garrett Dealer!!!
                PM me for more info.

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                • bmmf
                  Advanced Member
                  • Sep 2006
                  • 153

                  #9
                  good luck hope it works, these things are so frustrating


                  Modified E21 Brake Boosters for m5x/s5x swap......... 85 shipped.


                  Parts That I'm currently selling

                  My EBAY

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                  • Under_Pressure
                    Wrencher
                    • Sep 2009
                    • 254

                    #10
                    eureka!!

                    Tial, Precision, Garrett Dealer!!!
                    PM me for more info.

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                    • MIKe30
                      R3VLimited
                      • Sep 2006
                      • 2334

                      #11
                      Originally posted by bmmf
                      good luck hope it works, these things are so frustrating
                      quite an understatement.


                      can almost garauntee what seems "real high" is not nearly as high as it seems when open headers. Open headers are SO loud eh? :)

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                      • Under_Pressure
                        Wrencher
                        • Sep 2009
                        • 254

                        #12
                        Needs a snail on there to quite it down alittle.
                        Tial, Precision, Garrett Dealer!!!
                        PM me for more info.

                        Comment

                        • MattM
                          E30 Modder
                          • Apr 2009
                          • 931

                          #13
                          haha, forget the ICV? that would definatly help... lack of ICV will trip the computer and not let it start, how does it do it? by cutting fuel and spark...

                          that thing needs to be connected to your ICV, and then to the throttle intake hose.

                          #8 connects to that part you got, 6 is the ICV, teh rest should be straight forward, the engine WILL NOT idle right without this system, ICV= IDLE CONTROL VALVE



                          Full Build Thread Here

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                          • Under_Pressure
                            Wrencher
                            • Sep 2009
                            • 254

                            #14
                            Who needs all this sensor shit anyways!
                            Tial, Precision, Garrett Dealer!!!
                            PM me for more info.

                            Comment

                            • MattM
                              E30 Modder
                              • Apr 2009
                              • 931

                              #15
                              think of the icv as the little screw on the old carburated engines, that you were constantly adjusting to make the car idle....

                              heh, my first drive is related to your vid... LOL.. 'legohead6' on youtube...
                              Last edited by MattM; 11-10-2009, 10:59 PM.


                              Full Build Thread Here

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