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Help. Fuel pump again.

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    #1

    Help. Fuel pump again.

    Alright. I've rewired my fuel pump from relay. And sendIng unit. Replaced sending unit. Well had everything working and I lost power to my fuel pump again. Works when I touch amp wire to fuel pump wore. After messing with it. The sending unit wasn't reading on the gauge anymore. Help?

    MRT>http://www.cb7tuner.com/vbb/showthre...70#post3021770
    Tags: None
    #2
    You rewired everything yourself... so it'll be very difficult for anyone to help you over the internet.






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      #3
      What i would do is retrace your wiring. If it looks all good then check the voltage with a Multimeter.

      Comment

        #4
        I had a problem with my fuel pump not getting any power after doing a blown motor to used motor swap. Idk if it will help you any but there was a ground wire that wasn't tightened enough that caused it.
        Originally posted by deevergote
        Nobody says "Ebonics" anymore... It's thoroughly racist to assume that only black people talk like idiots. This site is proof that EVERYONE, of every cultural background, is capable of talking (or rather, typing) like a total fucking moron.

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          #5
          Originally posted by Twest7740 View Post
          Alright. I've rewired my fuel pump from relay. And sendIng unit. Replaced sending unit. Well had everything working and I lost power to my fuel pump again. Works when I touch amp wire to fuel pump wore. After messing with it. The sending unit wasn't reading on the gauge anymore. Help?
          Repair your main relay.


          Car Safety / General Servicing Checks --------Basic suspension checks

          My 5.7 LS1 Holden Ute

          A "Finished" project car is never finished until its been sold.

          If at first you don't succeed, Try again. Don't give up too easily, persistance pays off in the end.

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            #6
            1) only ran two wires exactly as they were before. 2) where would the ground be? 3) I'm getting power frOm the main relay. Just not to the pump.

            MRT>http://www.cb7tuner.com/vbb/showthre...70#post3021770

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              #7
              Originally posted by Twest7740 View Post
              1) only ran two wires exactly as they were before. 2) where would the ground be? 3) I'm getting power frOm the main relay. Just not to the pump.
              Your getting power from the main relay (The start of YOUR NEW wiring), but your not getting power at the pump (The end of YOUR NEW wiring) ?


              Unless your wiring isn't actually connected, I'm confused.


              Car Safety / General Servicing Checks --------Basic suspension checks

              My 5.7 LS1 Holden Ute

              A "Finished" project car is never finished until its been sold.

              If at first you don't succeed, Try again. Don't give up too easily, persistance pays off in the end.

              Comment

                #8
                did you remember to ground that one wire underneath the back seat going to the sending unit/fuel pump? should be a 10mm holding it down

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                  #9
                  Originally posted by Twest7740 View Post
                  1) only ran two wires exactly as they were before. 2) where would the ground be? 3) I'm getting power frOm the main relay. Just not to the pump.
                  Like evil_demon said.

                  Now just clarify a few things:

                  1. Do you have power AT the main relay?

                  2. If so, do you have power on the other side of the new wire you just ran?

                  3. Your ground can be anywhere on the chassis. So hook it up. And test again.

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