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    Cranks over but doesn't start.

    Backstory...
    My car has been running fine previously, i decided to replace some shifter bushings, and after completing this I started up the car and noticed i blew a fuse for my parking lights. I replaced with larger fuse unknowingly and burnt through the reverse wire. Problem was that it grounded out in the transmission tunnel because it wasn't properly plumed through the hole on the shifter rubber boot, and was being rubbed against the edge of the body of the car. I left my lights off, started the car and parked it until I could rewire the reverse switch. Fast forward to fixing the burnt wire and my car doesn't start.

    So my question for help is: what triggers the fuel pump and spark in the ignition? The fuel pump was replaced with a TRE fuel pump mid 2010.

    The car cranks over but it doesn't start. I checked the fuses in the fuse box and they checked out fine, but just now figured out where the actual fuel pump relay is, under the harness cover near the ICV . I will check that asap, and update. But still want to ask for help.

    I pulled up the back seat and checked my fuel pump with a voltmeter. And the results were that the pump isn't getting power to it.

    What should I be checking/what could be the problem?

    *Update*

    Originally posted by EyExR View Post
    Temporarily swap that orange relay with the one next to it...

    Then check for fuel pressure at the rail and also check for spark...
    Originally posted by yert315 View Post
    Main relay will cut fuel and spark. Should be under that cover next to the others. White if I'm not mistaken.
    I swapped around all of the relays under the harness cover. And nothing changed.

    I removed my intake boot and squirted gas into the throttle body while cranking and nothing.

    I also popped out one of my coils and spark plugs (I'm running a COP kit) and cranked the motor and it seems Im getting no spark.

    *Update #2*

    My throttle position sensor wires were brittle and cracked, only one wire of the three was connected, I replaced the clip and the car started, after about a 60 hr work week, I finally had time to do this simple thing.

    Woooooh....:drink: celebrate driving again!
    Last edited by thebutcher37; 04-06-2013, 08:20 PM.


    jou ma se poes in 'n fishpaste jar.
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    #2
    Temporarily swap that orange relay with the one next to it...

    Then check for fuel pressure at the rail and also check for spark...
    My 325iX DIY Threads:

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      #3
      Originally posted by EyExR View Post
      Temporarily swap that orange relay with the one next to it...

      Then check for fuel pressure at the rail and also check for spark...
      Thank you sir. I will Do my best to check what you mentioned tomorrow morning, and update you here!


      jou ma se poes in 'n fishpaste jar.
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        #4
        Main relay will cut fuel and spark. Should be under that cover next to the others. White if I'm not mistaken.

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          #5
          are u checking for power at the pump while cranking one the car?

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            #6
            Note to self: plumb the reverse wiring through the boot immediately! I just had this apart myself.
            1987 Toyota MR2: 20v blacktop screamer
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              #7
              Originally posted by yert315 View Post
              Main relay will cut fuel and spark. Should be under that cover next to the others. White if I'm not mistaken.
              Noted, will check.
              Originally posted by vert_this View Post
              are u checking for power at the pump while cranking one the car?
              Yes, tried that and got no power.




              Thanks guys will update you, Im about to head on over to my car.
              Originally posted by MazterDizazter View Post
              Note to self: plumb the reverse wiring through the boot immediately! I just had this apart myself.
              take care of it soon.


              jou ma se poes in 'n fishpaste jar.
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                #8
                Nothing Changed. Updated 1st post.


                jou ma se poes in 'n fishpaste jar.
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                  #9
                  The main relay can't be swapped with the fuel pump or o2 relay. It has more prongs. Have a friend turn the key while you feel for a click on the main relay. If no click, replace.

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                    #10
                    Updated. Please read first post, as it has all info combined in one post.

                    Cars running fine...
                    Last edited by thebutcher37; 03-11-2015, 10:14 PM.


                    jou ma se poes in 'n fishpaste jar.
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                      #11
                      relays

                      I know this is old...but wanted to ask....

                      I just finished sorting a no start issue on my s50 swap...

                      under the harness cover along the firewall , i also have the green, white and orange relay....

                      this thread has led me to think the orange is for 02 sensor?....
                      I love sitting down and just driving!

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