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Thread: Raising Shift Points?

  1. #1
    Junior Member
    Join Date
    Jan 2009
    Posts
    35

    Default Raising Shift Points?

    I have been over the tune ten times and I can't figure out what is limiting me. Trying to set my WOT shift points at 3600. Something is limiting starting at about 3300-3400 RPM, then the truck will get to 3600 RPM and just hang. If I stay wide open it will eventually shift, if I pull just a little pedal it will shift as soon as I do so. I've changed the Pedal Position to Desired Torque to call for 812 at 90% and above, to utilize the 812 cells in the Torque Based Fuel. Figured it would give me a little more adjustability from the Main Injection PW table being able to use the 120 mm3 cells. At this point I've made changes that I'm not sure whether or not they needed or should have been changed. Any help is greatly appreciated.The LBZ Trans Tuned_0000.ctzThe LBZ Single RPM_0000.ctz

  2. #2
    Junior Member
    Join Date
    Jan 2009
    Posts
    35

    Default

    Anyone?

  3. #3
    Junior Member
    Join Date
    Aug 2013
    Posts
    23

    Default

    Have you posted over at duramax diesel forum? There's a few guys there that could get you straightened out

    Sent from my SM-J337A using Tapatalk

  4. #4
    Lifetime Member
    Join Date
    Dec 2011
    Posts
    284

    Default

    what MPH are you at when it "hangs" or doesn't upshift?
    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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