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Thread: LS2 Startup issues

  1. #1
    Tuner in Training
    Join Date
    Jul 2015
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    Atlanta, GA
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    LS2 Startup issues

    ok...so I'm having an issue with the transition from startup to idle with an LS3 we swapped into a 70 chevelle. Car starts, runs for maybe 2 seconds, then dies. Almost like it's running out of fuel but fuel pressure is steady. I've spent a couple hours trying different things but nothing has improved it. I can rev the car and it will rev up but will not idle. Any ideas? Log file attached....
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    Last edited by brandonconner; 09-14-2015 at 06:26 PM.

  2. #2
    Tuner in Training
    Join Date
    Jul 2015
    Location
    Atlanta, GA
    Posts
    19
    Also, should mention it's an LS3 not an LS2, typo! I've also attached the tune....
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  3. #3
    Advanced Tuner
    Join Date
    Jan 2008
    Posts
    242
    Compare your file with Stock file LS3 and check Engine Diag, DTCs.