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Thread: Gen4 ls3 swap falls on its face while accelerating

  1. #21
    Senior Tuner edcmat-l1's Avatar
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    Do you have a fuel pressure gauge on the vehicle? Have you tried starting it using spray? Starter fluid, carb cleaner, flammable brake cleaner, etc.? That would be first thing to try.

    Crazy as it sounds need to do whatever to make it start then see what your trims say it needs to run.

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  2. #22
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    Pulled the injectors but part number is scratched on all of them can't get a full number. It does have a 60 etched into the connector. can anyone help me identify the injectors and how to put them into the tune? pictures attached.
    I can get all but one digit of the part number if I'm looking at the right number 02801581*1 looks like it could be either 8,9,0



    Last edited by Eddtheman; 2 Weeks Ago at 05:44 PM.

  3. #23
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    FIC did that. Among others.. It comes after they refit/redrill/reoriface whatever to a stock injector.

    But both of us have asked you to verify fuel pressure under heavy load and I haven't seen a response. There is a reason why two tuners are asking if you have done that. It might save us all a lot of time.
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  4. #24
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    Was the video of the fuel pressure gauge not showing up? Or do I need to make another one?

  5. #25
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    Quote Originally Posted by Alvin View Post
    that doesn't look great to be honest. I'd continue to watch it... especially under a heavier load.

    It sounds like you got a miss other than that.. have you done the simple things? Wires/ plugs.. if you do a log with a wide open throttle pull I could narrow down which side it might be on.
    Tuner at PCMofnc.com
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  6. #26
    Senior Tuner edcmat-l1's Avatar
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    Take a picture of the tip of the injector. I bet you'll be looking at the pintle.

    Sounds like it has big injectors along with the LSA map sensor. Might want to get a set of stockers. No telling what those are.

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  7. #27
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    Screenshot_20240522_025344_Firefox.jpg

    It has 4 holes like this. Yeah I think I'll look into stock injectors just so I have data on them. Also going to do a compression test on the engine. No idea how much boost previous owner was running.