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Thread: fuel pump wiring

  1. #1
    Junior Member Grease Monkey
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    Default fuel pump wiring

    Hi,
    this is my prob....

    car -4AGE (AE86) with Adaptronic
    i install brand new Sard fuel pump with their Harness kit, did the wiring like this


    30 - Ignition/EFI 12v
    87 - Fuel Pump (+)

    85 - ECU Trigger wire
    86 - Ignition/EFI 12v

    Fuel Pump (-) to the Chassis

    but still pump is not working....
    before figure out the correct wiring (thnx to Stain HR) ; i did it in wrong way

    my questions are
    Can wrong wiring damage the fuel pump?
    is there a way i can test the pump by itself (taking out of fuel tank.... is it safe to feed direct battery to the pump?)

    (cause it's not fake, doggie e-bay sard ; directly got from jap)

  2. #2
    Junior Member Carport Converter RA35GT's Avatar
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    Default Re: fuel pump wiring

    Should be fine to test the fuel pump directly mate.

    Can you hear the relay clicking?
    1977 RA35 Celica GT - I4 | 2007 GSV40R Aurion - V6
    Don't live life being scared of death, live in the fear of not truly living. RP 2012

  3. #3
    Junior Member Grease Monkey
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    Default Re: fuel pump wiring

    i connect pump to battery directly ( with out taking out of the tank ) but no buzz or anythng. is it dead?

  4. #4
    Junior Member Carport Converter RA35GT's Avatar
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    Default Re: fuel pump wiring

    I'd pull the pump out and wire battery directly to the pump to be sure, but it does sound dead.
    1977 RA35 Celica GT - I4 | 2007 GSV40R Aurion - V6
    Don't live life being scared of death, live in the fear of not truly living. RP 2012

  5. #5
    Junior Member Grease Monkey
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    Default Re: fuel pump wiring

    will do it 2night.
    i took it out of the box last week ,and install it then went for tune. then found out this.

  6. #6
    Junior Member Domestic Engineer Hurricane's Avatar
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    Default Re: fuel pump wiring

    i second pulling it out and bench testing the pump, don't run it for very long with out pumping any thing through it though.

    then take it from there.

    not every thing works straight out of the box haha

    dan.
    * 84 FJ60 - 37's, 308, 80 series coils/diffs and LS1TT in the makin
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  7. #7
    Junior Member Grease Monkey
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    Default Re: fuel pump wiring

    i knw man, yeah it's dead, contact Sard they asked me to send the pump;
    but i thnk nest week their starting some kind of festival so everything close for few days, man again it's dragging now cars out of road nearly 10months.

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