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Thread: Problem on wot/decel

  1. #1
    Tuner in Training
    Join Date
    Sep 2009
    Location
    Connecticut
    Posts
    31

    Problem on wot/decel

    Ok stats are ls2 402 stroker, t56 trans nitrous cam 614/621 227/235 113+3 stock heads 1 7/8 longtubes. stock ls2 injectors reflowed to 55lbs from fic. Car runs great cruising around 14.6/15.2 afr around town and highway, wot 12.30/12.70 afr. Tune is running in maf mode only open loop. Trims are disabled. dfco is disabled, not every time but more than a few times the car after going wot when im letting off will go super rich, like 9.0-10.0 afr then super lean 20-22 afr. The last time this happened it spark knocked like crazy. I will upload a tune file and a scanner file later, does anyone have any ideas? It seams like after going wot if i stick the car in neutral I can duplicate the issue everytime
    Last edited by TheBuMan78; 07-25-2012 at 08:57 PM.
    Real cars don't power the front wheels, they lift em

  2. #2
    Tuner in Training
    Join Date
    Sep 2009
    Location
    Connecticut
    Posts
    31

    Tune, config, and log files

    Here are the files, i watched the log file and it looks like the injector pulse is going crazy at the end just before i shut the car off
    Real cars don't power the front wheels, they lift em

  3. #3
    Tuner in Training
    Join Date
    Aug 2011
    Posts
    30
    Your MAP sensor started the aggrevation, check that 1st