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Thread: Stock 2011 Lean issue

  1. #1
    Potential Tuner
    Join Date
    Mar 2013
    Posts
    1

    Stock 2011 Lean issue

    I have a 2011 GT, all stock minus X pipe. Having an issue where it's really lean during tip-in and needing about 20% higher MAF values than stock in medium to high load. I'm coming over from the ecoboost stuff from Cobb, so this isn't anything crazy for me. I've smoke tested it a couple times, found some small leaks and fixed them. Reset KAM and it's on the factory tune. Fuel pressure is also in spec. Am I missing something blatantly obvious? Or are the factory tunes really that bad... The car is pretty un-driveable like it is. It had a previous tune from another shop with the higher MAF values, which doesn't seem right. Car runs a little better like that, but not much.

  2. #2
    Advanced Tuner
    Join Date
    Mar 2010
    Location
    New Orleans, LA
    Posts
    628
    no if the car is all stock it should run perfect

    time to diagnose
    decipha @ EFIDynoTuning
    http://www.efidynotuning.com/