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Thread: trans not shifting propely

  1. #11
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    Jun 2010
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    K, will see what we can do and let you know how it works. The file for the trans on the other thread is just the stock one if you think you need to look at something else let me know.

  2. #12
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    Apr 2010
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    there is a stock 110mph speed limiter in the ecm tune. have u changed that?

  3. #13
    Senior Member
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    Mar 2008
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    127

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    Email me both tunes. I will try to help you as best as I can.

    I also need to know tire size. Please send the stock trans tune, not your modified one. And who is the tuner/seller of the EFI Live?

    Armdist@yahoo.com
    Mine2001 GMC 2500HD EC/LB, D/A. 4in MBRP exhaust, AFE Stage II w/Amsoil Ea air filter, ISSPRO boost/Pyro guages, PPE Boost Valve, EFI Live V2, Maximum OD Stage 2 Trans, Amsoil throughout, AirDog150, modded intake horn.

    540HP/1056TQ
    Dyno'd Danville Performance
    April 5th 2011

    Hers: 2006 GMC Envoy XL Denali, Flowmaster 40 with a bullet style resonator in the back, EFI Live with the help of JoeCar and other great members here.

  4. #14
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    Jun 2010
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    Tried modifing the trans, didn't work so I put it back to normal and it started to work better. What I did, don't know but I found under Main Injection the problem of the power fall off. It had the fuel to speed set at 0 after 161kms, so I just kept the same numbers going through the table, and ran a 112mph, short times couldn't get right though. Fell of even with the 112mph ran a 12.55. Had to lift, so should have been better. Can't get loaded up at the line enough to get consistant runs, will figure out something.

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