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Thread: 2012 sierra 6.2l Denali awd

  1. #1

    2012 sierra 6.2l Denali awd

    Anyone tune one of these yet? I guess 2011 and 2012 have different ecms than the older ones. I'm not familiar with the new gen v8s. I'm coming out of a lnf cobalt ss that I had tuned and always adjusted the tune my self after that. Any pointers on torque management and tranny setting adjustments this is a bone stock truck, I'm just looking for better driveability and better mpgs as a bonus
    Last edited by '09SS; 07-15-2012 at 09:14 AM.
    '09 cobalt ss. hahn intercooler, intake, cp,catless downpipe, ottp stage 2 mounts, hptuners, gmpp 3bar tmap sensors, hybrid hp tuned

  2. #2
    just pulled stock file from truck for those who want to see a 2012 file, i didnt see one in the repository
    '09 cobalt ss. hahn intercooler, intake, cp,catless downpipe, ottp stage 2 mounts, hptuners, gmpp 3bar tmap sensors, hybrid hp tuned

  3. #3
    Senior Tuner IDRIVEAG8GT's Avatar
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    Aug 2010
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    I just finished doing a tune on my brand new '11 Denali yesterday.
    Gray Ghost- The abomination. 2007 Chevrolet Silverado CCSB. 98mm turbo, nitrous, 428LSX, Rossler 80E with a brake. Finally finished. 23 psi, no numbers, Slow as hell.

    PBM G8- Aluminum 364, twin Precision 67/66 turbos, 6L90 trans swap, CTS-V/Vaporworx fuel system, slowly making progress.

    Dads 2011 CTS-V- Stock bottom end, stock heads, LS9 cam, pullies, ported blower, ported TB, D3 goodies, and lots of nitrous.
    618/618 motor
    906/862 spray

    Caterpillar 50 Forklift- Duramax swap

  4. #4
    Potential Tuner
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    Oct 2011
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    I just tried do'n some work on a friends '12 silverado 6.2, but cat get into it. Half way thru just trying to read it, it comes up with a security block. I figured it just isnt supported yet, but it seems you guys can do it. I got my hpt last september, i didnt think there have been any updates yet...am I wrong? thanks

  5. #5
    Tuner
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    Quote Originally Posted by Pol-Cat View Post
    I got my hpt last september, i didnt think there have been any updates yet...am I wrong? thanks
    Oh yeah, many an update since then. Email support for the latest Beta.
    2017 Sierra Denali 6.2
    1986 K10 L86/8L90/NP205

  6. #6
    It stopped loading halfway thru and accessories that were on clicked off like my cobalt did after doing a quick reflash, then it switched to reading the tcm
    '09 cobalt ss. hahn intercooler, intake, cp,catless downpipe, ottp stage 2 mounts, hptuners, gmpp 3bar tmap sensors, hybrid hp tuned

  7. #7
    Tuner in Training
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    Did a 2012 6.2 Denali about a month ago... Beta .612

  8. #8
    Potential Tuner
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    Oct 2011
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    Thanks alot! I figured my ignorance was directly related to the problem..durrr. How or where can I find notification of updates?

  9. #9
    HP Tuners Support
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    Bill@HPTuners's Avatar
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    email support
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"

  10. #10
    Potential Tuner
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    Whats the average response time when emailing support? When I first got HPT and had some problems, the help they gave was excellent and quick. I thought I would get a reply from tech support today, but I'm in no hurry.

  11. #11
    Ya, tuned many of them, even a 2012 edel eforce 6.2L, turned out great!
    Tuning is similar to all the other ones, just take your time.

    Doesn't take make at all to make the trans shift just right.

  12. #12
    Senior Tuner IDRIVEAG8GT's Avatar
    Join Date
    Aug 2010
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    Roswell, N.M.
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    Typically response time is within a few hours.
    Gray Ghost- The abomination. 2007 Chevrolet Silverado CCSB. 98mm turbo, nitrous, 428LSX, Rossler 80E with a brake. Finally finished. 23 psi, no numbers, Slow as hell.

    PBM G8- Aluminum 364, twin Precision 67/66 turbos, 6L90 trans swap, CTS-V/Vaporworx fuel system, slowly making progress.

    Dads 2011 CTS-V- Stock bottom end, stock heads, LS9 cam, pullies, ported blower, ported TB, D3 goodies, and lots of nitrous.
    618/618 motor
    906/862 spray

    Caterpillar 50 Forklift- Duramax swap