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Thread: LS2 hard to start when warm

  1. #1
    Tuner
    Join Date
    Oct 2006
    Location
    N-B ,Canada
    Posts
    57

    LS2 hard to start when warm

    Hello.
    Been working on this for a few days now,and I can't seem to figure it out.
    It's an 05 Vette fitted with a built 427cu in.YSI supercharger and 120 lbs injectors.239/255 cam.
    On a cold start (68F) coolant temp,it starts OK.But when it reaches over 100F,it will start and run for just 1-2 seconds.
    Because it has 120 lbs injectors,and the E40 ECM,had to scale it down to 60lbs and change the AFR.I also loaded the injector data aswell.
    Tried different startup air flow all over the place.Different timing,etc... I probably missed something,but I must be blind.I also heard that the 05 model can be a challenge to to tune the starting process aswell. I'm sure it's because of the different AFR that is screwing up another table somewhere.
    Just looking for somebody that worked a lot on these 05 models.I've attach the current file.
    Thanks in advance.
    Last edited by Motion427; 09-10-2014 at 05:19 PM.

  2. #2
    Tuner
    Join Date
    Oct 2006
    Location
    N-B ,Canada
    Posts
    57
    Found the issue. Injector data error.
    Last edited by Motion427; 09-21-2014 at 08:47 AM.