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Thread: L5P tuning

  1. #1
    Tuner in Training
    Join Date
    Jun 2015
    Posts
    44

    L5P tuning

    Has anyone tried this yet? Looking for some feed back on what?s required to write?

  2. #2
    1968 Chevy C10 SWB - Project
    2018 Denali L5P

  3. #3
    Quote Originally Posted by jakezed22 View Post
    Has anyone tried this yet? Looking for some feed back on what?s required to write?
    You need to exchange your ECM (or a spare one) for one that is enabled for tuning with VCM Suite. Then you use VCM Suite 4.1 with MPVI2 to tune normally via OBD2 port.

    https://www.hptuners.com/product/l5p...hange-service/

    https://forum.hptuners.com/showthrea...-Now-Available!
    I count sheep in hex...

  4. #4
    Potential Tuner
    Join Date
    Jun 2020
    Posts
    2
    Did you have any luck with getting yours tuned?

  5. #5
    Potential Tuner
    Join Date
    Dec 2023
    Posts
    1
    I've had a few people tell me different meanings of hp on the selections after I tuned a L5P 22 gmc. One said 1 is stock and goes up from there the other said 0 then goes up from there. I have 0-5 selections. Just wanting to get some clarification on what hp is in each selection.
    Last edited by jdd; 12-18-2023 at 03:12 PM.

  6. #6
    Potential Tuner
    Join Date
    Aug 2023
    Posts
    2
    If i'm not mistaken the program looks at zero as the number one switch position/ stock . Program has 0,1,2,3,and 4. if you have a switch its 1,2,3,4,and 5