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Thread: 6 speed not updating current gear fast enough

  1. #1
    Junior Member
    Join Date
    Apr 2012
    Posts
    18

    Default 6 speed not updating current gear fast enough

    After my track outing today, I have found that the current gear is not updating quick enough after a shift. It is making rpms go north of 4200rpm because it will not command the next gear change until the current gear is updated. I am going to include a tune file and a snapshot of the log. Tune is basically stock with WOT shift points set way low trying to get a gear change. Anybody run across this before?

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  2. #2
    Lifetime Member
    Join Date
    Dec 2011
    Posts
    284

    Default

    I had mine act weard like that then I dropped the MPH and RPM down low too. Shifted fine when I used the tap shifter and changed gears at about 2500-3000 RPMs.

    Seemed to me that trying to get it to shift below 2000 or so RPMs at WOT made it refuse to shift.
    2008 Chevrolet 3500HD DRW LTZ
    285/75/17 Nitto Dura Grapplers, 4.56 gears, Front and rear ARB lockers, Efi Live tuning by me, Raptor 160 LP, Cognito 4-6 NTB Lift, 4" Exhaust, Built Trans by Mike L.

    2004 LB7 Duramax, EFI Live with DSP5 Tune
    stage 4 SC transmission, 265/70/16 tires

  3. #3
    Lifetime Member
    Join Date
    Dec 2011
    Posts
    284

    Default

    I had mine act weard like that then I dropped the MPH and RPM down low too. Shifted fine when I used the tap shifter and changed gears at about 2500-3000 RPMs.

    Seemed to me that trying to get it to shift below 2000 or so RPMs at WOT made it refuse to shift.
    2008 Chevrolet 3500HD DRW LTZ
    285/75/17 Nitto Dura Grapplers, 4.56 gears, Front and rear ARB lockers, Efi Live tuning by me, Raptor 160 LP, Cognito 4-6 NTB Lift, 4" Exhaust, Built Trans by Mike L.

    2004 LB7 Duramax, EFI Live with DSP5 Tune
    stage 4 SC transmission, 265/70/16 tires

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