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Thread: Fuel Injector Wiring

  1. Top Of Page | #11
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    Re: Fuel Injector Wiring

    Well that surely didn't last long.

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  2. Top Of Page | #12
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    Re: Fuel Injector Wiring

    Limp mode?

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  3. Top Of Page | #13
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    Re: Fuel Injector Wiring

    All 3 injector codes came up again, same problem as before.

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  4. Top Of Page | #14
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    Re: Fuel Injector Wiring

    I'm leaning on ECM.

    I had an '02 Avalanche that the ECM ground out on 1 cylinder.

    For 3 at once and for it to go away then come back... electronics are finicky and a PITA when they go wrong.

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  6. Top Of Page | #15
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    Re: Fuel Injector Wiring

    If it's a bad ecm I'm still screwed because the truck is deleted so I wouldn't be able to drive it anyways, and I would lose my EFi Live.

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  8. Top Of Page | #16
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    Re: Fuel Injector Wiring

    So yesterday I was fed up with the issues and decided at 7 am when I got out of work I was going to do my best to find the issue myself so I didn't have to wait on the dealer and whatnot.

    I have figured it out!

    1.5 hours outside in 28-degree weather and I got it.

    Turned out to be the big connector in the picture here, tested it out 5 times over just to make sure, and every time I'd wiggle it or twist it the truck would start misfiring.

    So for the time being I zip tied the connector to help it make a better connection and I haven't had a single issue so far.

    Would like to replace the harness myself this spring when it's nicer out.

    Found a new GM harness for $750.

    I hope this thread will help someone out in the future and I will be sure to update if anything else arises.

    I would also like to add I don't know what I would do without this edge CTS2, really helps out.

    Would like to upgrade to the CT3.

    Highly recommend to anyone!

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