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Thread: Diagnosing fuel problem

  1. #1
    Van Fan
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    85 TV 2wd M/T 87 4x4 LE A/T
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    Why is my Check Engine Light not coming on?

    Hey guys, my van is cranking but doesn't turn over.

    When I jump the 'fuel pump test connector' I get no noise from the fuel pump and no click from the 'circuit open relay'.

    One thing that seems to be a clue but I don't know what it means, the 'check engine light' is no longer illuminated when the ignition is turned to 'on'. In the past that light was always illuminated when the ignition was in the 'on' position before starting the engine.

    The EFI fuse at the main fuse box seems to be intact
    Last edited by ingmire; 01-25-2020 at 04:39 PM. Reason: Further along in troubleshooting

  2. #2
    Van Enthusiast
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    (2) 1989 2WD LE VAN Wagons
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    Re: Diagnosing fuel problem

    Did you find a replacement ECU?

  3. #3
    Van Fan
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    85 TV 2wd M/T 87 4x4 LE A/T
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    Re: Diagnosing fuel problem

    I ordered a used one pulled from a junkyard van. It will arrive on wednesday and I'm going to go from there.

  4. #4
    Forum Newbie
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    Re: Diagnosing fuel problem

    Not 100% sure but other Toyotas of that generation have a fusible link to the battery and an EFI relay that allow the truck to start AND lights the CEL. No CEL= no power to EFI relay or dead EFI relay.

    Again, not 100% su this applies to the vans but it is standard toyota set up 88-3/95.

  5. #5
    Van Fan
    My Van(s):
    85 TV 2wd M/T 87 4x4 LE A/T
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    seattle
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    Re: Diagnosing fuel problem

    Yup! My IGN fuse is blowing immediately when I turn the key to the on position

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