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Thread: Anyone have 6l90 tune settings for standalone lsa swap. compare tunes please

  1. #1
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    Anyone have 6l90 tune settings for standalone lsa swap. compare tunes please

    HI anyone have 6l90 tune settings for stand alone lsa swap ?

    did a 2012 6.2l lsa and 6l90 combo . car starts and seems to run amazing. when placed in gear

    little to no pedal response. transmission feels like its locked up or feels like the brake is on.

    both forward d and reverse.


    if you have a working 6l90 tune i could compare to it would be greatly appreciated . if any professional tuners could solve this

    issue id be happy to pay.

    thanks in advance


    1957 caddy knowm good tune after maf.hpt
    Last edited by broken-tuner; 04-03-2021 at 08:16 PM.

  2. #2
    Advanced Tuner Shrek's Avatar
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    This is the second thread that you have started - on the same topic.

    You have not posted your current calibration (tune) in either thread.

    People cannot assist you, when you neglect to post your current calibration.

  3. #3
    Tuning Addict 5FDP's Avatar
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    If the engine and transmission came from the same donor car it shouldn't be an tune issue.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  4. #4
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    hey thanks for the heads up. i will post as soon as i can figure that out lol. first time here. ill try to get it posted thanks

  5. #5
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    tune should be uploaded thanks for the heads up on how it works !

  6. #6
    Advanced Tuner Shrek's Avatar
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    The calibration appears to be based on a 2012 CTS-V with E67 ECM OS12653238 and T43 TCM OS24261871.

    Questionable tune changes:
    • the MAF diagnostic has been disabled
    • DTC P0068 has been set to "Not Reported"
    • DTC P0171 to P0175 have been set to "Not Reported" - you will not be alerted if the engine is running too lean or too rich
    • DTC U0105 is setup for a FPCM - if you are not using one, this should be set to "Not Reported"
    • likewise ECM 601 is set for use with a FPCM
    • DTC U0140 should be changed to "Not Reported"


    What accelerator pedal (APP) are you using ?

    The above calibration requires that you use a CTS-V APP - substituting a different APP will cause issues.

  7. #7
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    i will change those and see what happens.

    i have the pedal from the car i got the engine and transmission from.

    i will have to figure out how to enable/disable each of those.

    i think i have it how you recommend see attached. please advise if i miss-understood after i hear from you ill give it a go.

    happy Easter !


    1957 caddy recomendations from shrek.hpt1957 caddy recomendations from shrek.hpt
    Last edited by broken-tuner; 04-04-2021 at 01:29 PM. Reason: adding tune edits

  8. #8
    Advanced Tuner Shrek's Avatar
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    The MAF diagnostic is still disabled - see ECM 4040 - the minimum ECT has been maxed out.

    DTC U0121 and U0140 are still set to "No MIL Light" - change these to "Not Reported".

  9. #9
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    hi i was able to change the u0121-u0140 i can not seem to locate ecm 4040 for the ect can you provide what tab thats under?
    or possible a screenshot . apreeciate the help thanks

  10. #10
    Tuning Addict blindsquirrel's Avatar
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    Type CTRL+N and then '4040'.

  11. #11
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    Nice ! that worked. what do you suggest the settings for this ?

  12. #12
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    so stoked trans is going into gear and car moving on its own again

    the only thing left is the setting for minimum ect setting.


    thanks !!!!!!

  13. #13
    Tuning Addict blindsquirrel's Avatar
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    Your stock file from before any changes should have what you need. If you don't have that, I'm sure there are CTS-V files in the repository. You need to be able to find simple things like that on your own without sending PMs to random people.

  14. #14
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    blind squirl, i already looked they all seemed to be set to the same. the suggestion was it was wrong.

    in any case cars working great without changing it just gonna leave it and enjoy jamming around.

    Shrek thanks for the changes trans is working great !

  15. #15
    Advanced Tuner Shrek's Avatar
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    Quote Originally Posted by broken-tuner View Post
    blind squirl, i already looked they all seemed to be set to the same. the suggestion was it was wrong.

    in any case cars working great without changing it just gonna leave it and enjoy jamming around.

    Shrek thanks for the changes trans is working great !

    I do not know what "stock" CTS-V tune you used for comparison, but below are the ECM 4040 values.

    Stock tune - ECM 4040 is set to 19F

    Your tune - ECM 4040 is set to 493F

    This means that in your tune, the diagnostics for MAF Sensor, MAP Sensor, and TPS will not run. A tune setup like this is typically trying to conceal the likelihood that the Airflow Model is incorrect, or that the "tuner" had no idea how to configure the Airflow Model.

    You need to invest the time to learn how to use HP Tuners.

    Asking obvious questions will often alienate people, as this reflects little effort on your part, and the implication that everyone else has time to hold your hand.

    Time to put on your big boy pants, and figure some of this out for yourself.

  16. #16
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    thanks for the input

  17. #17
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    Also let me know how much i owe ya for the help it's really working like a dream. just drove it another 80 miles today

    gonna drive to ca over the weekend ill keep ya posted.

  18. #18
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    Car ran great to and from ca thanks folks . 1900 miles .
    Couldn?t be happier.