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Thread: In the words of Joe Dirt, Im new, I don't know what to do.. (e67 08 5.3)

  1. #1
    Tuner in Training
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    In the words of Joe Dirt, Im new, I don't know what to do.. (e67 08 5.3)

    Okay so, I have a 2008 Envoy Denali with a 5.3.
    I'm not new to hptuners, but I am new to tuning myself. In the past I always had tuners to dial things in.
    There are no "canned" tune options for this car, so it has to be done through HP.
    I started by turning off the DOD, and associated cels.
    I attempted to adjust the pedal sensitivity and turn off any traction control, then adjusted some torque limit stuff, only to have the car throw a light for the pcm on 10 min ride afterwords.
    I'm back on the stock tune, with DOD deactivated now.

    Where should I be looking to adjust the throttle sensitivity?
    I included the current file as reference.
    Attached Files Attached Files

  2. #2
    Tuner in Training
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    Also, this is a selectable 4wd model, run primarily in 2wd. Trans is a 4l60e, and the truck came factory with a 3.73 Eaton locker lsd rear diff.
    Exhaust is currently factory manifolds, gutted cats into a turndown.
    It should be way peppier off the line then it is.
    Last edited by FrankenStrong; 4 Weeks Ago at 07:56 PM.

  3. #3
    Senior Tuner
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    Add timing where you can. That is how I improve throttle response

    I do not recommend changing pedal stuff. It can cause PCM problems like REP codes
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  4. #4
    Tuner in Training
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    Quote Originally Posted by Alvin View Post

    I do not recommend changing pedal stuff. It can cause PCM problems like REP codes
    Yeah, the PCM wasn't a fan of the pedal percent changes.
    I have revised the 1st tune to add in turning off the trans abuse mode, and any fuel torque management. That has made a huge difference in drivability and off idle response.
    I'm wondering now if I should turn off the spark torque management also..