Help me trouble shoot my no start plz

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  • King Mufasa
    E30 Addict
    • Sep 2012
    • 530

    #1

    Help me trouble shoot my no start plz

    I have a high compression 12:1 m52 that I can't seem to get it running. Everything is clean and new, every hose and sensors. I can see that the spark plugs are firing since I get it running for a few seconds with starting fluid.

    I checked the in tank pump and its is pumping gas.

    I checked the passenger side pump and it is not sending any fuel.. I can hear it when I try to crank it but nothing comes out..

    I have all new relays and I have 3 413 red label DME's and no start.

    Help me please this is a 2/1987 OBD1 e30.
  • King Mufasa
    E30 Addict
    • Sep 2012
    • 530

    #2
    The in tank and inline pumps are brand new. The driver side inline pump is a 044 Bosch pump.

    Comment

    • King Mufasa
      E30 Addict
      • Sep 2012
      • 530

      #3
      I removed the intank pump fuel sensor and while my friend cranked the engine over I was looking inside and I noticed it was shooting fuel out through a small hole about 2 or3 mil in diameter near the filter area.

      I assume this is a high pressure valve of some sort??

      Is this new pump bad or something is loose inside?

      Comment

      • M3PO
        E30 Addict
        • May 2012
        • 537

        #4
        Is the fuel pump relay triggering the fuel pump?

        Comment

        • King Mufasa
          E30 Addict
          • Sep 2012
          • 530

          #5
          well I changed the $200 poor manufactured brand new ECS in-tank pump with a used pump and its pumping gas now.

          It cranks yet no start.. I checked the injectors plugs with a noid light and its firing right up.

          battery is new and tested for the cranking I did today..

          Do I need the cluster connected for it to start?? because I have it removed do to a dash swap.

          Comment

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