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Fuel Pump Grounding

Discussion in 'The Garage' started by Hossbaby50, Nov 7, 2003.

  1. Hossbaby50

    Hossbaby50 3/4 ton status

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    I am installing my fuel system for my TPI conversion. I installed my pump last night. It is an electric inline pump from MSD. I am wondering if grounding it straight to the frame will be fine or if I should run a lead straight to the battery for the ground? I was thinking that the frame should be fine.

    A second thought. Does the negative lead need to be run from the fuel pump relay? I was under the impression that only the positive lead needs to be run from there. Is this correct? Thanks

    Harley
     
  2. MarcS

    MarcS 1/2 ton status

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    The neg lead on my stock pump goes right to the frame. I would think the aftermarket pump would also be fine this way. As for the relay, I would think it's grounded to the body which is grounded to the frame. I never heard of any isolated grounds on vehicles before. Just my .02 cents.
     
  3. justhorsinaround

    justhorsinaround 3/4 ton status

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    Yes the frame is fine and if memory serves (foggy at best) no you don't ground the relay. Remember though it's been quite a while since I wired a relay. Someone else I am sure has done this lately. Good luck to ya.

    Allan
     

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