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Thread: Need help with tuning:)

  1. #1
    Potential Tuner
    Join Date
    Nov 2010
    Posts
    5

    Need help with tuning:)

    Ok long story short....
    The car was perfect tuned last year, now I have changed the headers(from 1 7/8" to 2" american racing),intake(Fast 92mm to Fast 102mm) and throttle body(LS2 to NW 102mm).

    Haven`t changed anything else.
    Now the the LTFT shows +25% bank 1 and -18% bank 2 at idle, and down to 1-2% when driving.

    My guess was a injector problem because thats to much for air leak in the exaust, or?

    Engine info:
    LSX 6.2,AFR 210cc heads,F2 procharger....

    Please check the log

    Thanks!
    Attached Files Attached Files

  2. #2
    Advanced Tuner
    Join Date
    Jul 2008
    Location
    Louisville, KY
    Posts
    415
    How about the tune file?

  3. #3
    Advanced Tuner
    Join Date
    Dec 2007
    Posts
    242
    If that's all you changed, my guess is a vacuum or exhaust leak.
    98 - z/28 Twin TC76's l forged 347 l boost cam l moser 9" l th400
    07.5 - GMC Sierra 2500HD D-Max daily
    09 - G8 GT wifes daily