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Thread: scratching my head on this one.. 1991 kodiak no start

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  1. #1
    LT1 specialist steveo's Avatar
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    ensure your grounds are okay by running a jumper from ECM case to vehicle chassis.
    if that's no good maybe your burned bin is bad with an incorrect checksum, improperly offset, improperly inserted, something like that

  2. #2
    Electronic Ignition!
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    Quote Originally Posted by steveo View Post
    ensure your grounds are okay by running a jumper from ECM case to vehicle chassis.
    if that's no good maybe your burned bin is bad with an incorrect checksum, improperly offset, improperly inserted, something like that
    so i ran a jumper from the ECM case to the chassis and no dice.... still no start and still flashing the check engine light..
    the bin file i have i found on this thread here- http://www.gearhead-efi.com/Fuel-Inj...-in-Engine-ADX

  3. #3
    Super Moderator dave w's Avatar
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    Quote Originally Posted by cookie 70 View Post
    so i ran a jumper from the ECM case to the chassis and no dice.... still no start and still flashing the check engine light..
    the bin file i have i found on this thread here- http://www.gearhead-efi.com/Fuel-Inj...-in-Engine-ADX
    I posted the files in the linked thread, which I personally verified before posting them.

    I'm curious what the Noid light testing for the injector wiring revealed?

  4. #4
    Electronic Ignition!
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    Quote Originally Posted by dave w View Post
    I posted the files in the linked thread, which I personally verified before posting them.

    I'm curious what the Noid light testing for the injector wiring revealed?
    i am getting no pulse to the injectors, but i do have spark. reckon it might be an offset issue? this is about to drive me crazy..LOL!

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  6. #6
    Electronic Ignition!
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    ok so i managed to get pulse to the injectors, but no fuel. fuel pump is running, upon further inspection i found the fuel had turned to some milky color.
    keep in mind this isnt too old of fuel (6months) so thats weird. i am now flushing the tank as we speak, and im going to fush the fuel lines.
    i managed to get it to bust off by means of pouring fuel in the throttle body, but it still has the flashing service engine soon light.
    maybe im on the right path...

  7. #7
    Super Moderator dave w's Avatar
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    When an engine briefly runs after pouring fuel into the throttle body indicates a fuel problem.

    Possibly the rapid flashing check engine light is bad chip.

    I favor troubleshooting the rapid flashing of the check engine light first, by replacing the current chip with a known good chip.

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