NO FUEL Bagged truck tank relocate

Discussion in 'Engine/Drivetrain' started by eurofreak2002, Jul 4, 2011.

  1. eurofreak2002

    eurofreak2002 Toyotaholic

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    80 STD SR5 LB, bagged! The new whip!
    Ok since nobody reads my build thread I will make a seperate one for this issue.

    Bagged guys or others whom have relocated your fuel tank having to extend the wiring!!!!

    I have NO power to my pump! All fuses in block are good, we soldered the wiring and wrapped them as should be, all wires are guaranteed connected in correct spot on harness plug for pump and sending unit.

    I have no power to pump at the plug inside cab under passenger seat.

    Anyone got some ideas cause I checked all fuses, made sure the wiring from fuse block to pigtail in cab was intact. I have power for everything else behind the cab just no fuel???????
     
    eurofreak2002, Jul 4, 2011
    #1
  3. burnzya

    burnzya Grand Toyotaholic

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    so you have power at both sides of the fuel pump fuse when the ignition is on?
     
    burnzya, Jul 4, 2011
    #2
  4. eurofreak2002

    eurofreak2002 Toyotaholic

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    80 STD SR5 LB, bagged! The new whip!
    I have no power to fuel period but the fuse is good we pulled it and put it in another section of fuse block to see if that would work. We traced the wires coming out couldnt find anything spliced, shorted, etc. Even bought a new relay and still nothing.


    By the way Dave nvrenuf showed me that killer trophy you got very nice
     
    Last edited: Jul 4, 2011
    eurofreak2002, Jul 4, 2011
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  5. burnzya

    burnzya Grand Toyotaholic

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    thanks man

    kind of weird that it doesn't have power at the fuse block. i have no idea where it gets power at the fuse block lol
     
    burnzya, Jul 4, 2011
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  6. eurofreak2002

    eurofreak2002 Toyotaholic

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    Yah that's why I'm stumped
     
    eurofreak2002, Jul 4, 2011
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  7. Litneon

    Litneon Super Moderator Staff Member

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    Did you try bypassing it separately? Just to make sure? And there is a fuel pump relay isn't there? If so, you might check it.
     
    Litneon, Jul 4, 2011
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  8. Litneon

    Litneon Super Moderator Staff Member

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    Ok, pin 1 on the check connector in the engine compartment should show voltage when the relay is pulled in. Also, this relay is pulled in by the main EFI relay which gets it's power from a 15 amp fuse. So if either one of these relays or fuses was bad, you'd get nothing.
     
    Litneon, Jul 4, 2011
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  9. Litneon

    Litneon Super Moderator Staff Member

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    If you don't own a Hayne's manual, get one. They have complete wiring schematics. Worth it's weight in gold.
     
    Litneon, Jul 4, 2011
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  10. eurofreak2002

    eurofreak2002 Toyotaholic

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    80 STD SR5 LB, bagged! The new whip!
    Yah we ran straight power to pump and it turned on both main block relays are new ima climb back under it ans pull entire harness and see what's breaking connection where
     
    eurofreak2002, Jul 4, 2011
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  11. 22R_All_Motor!

    22R_All_Motor! Addict

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    make sure pcm fuse isn't blown?
     
    22R_All_Motor!, Jul 4, 2011
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