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Thread: car dies when coming to an idle from acceleration. ls3 with chopacobra

  1. #21
    Tuner in Training
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    Mar 2024
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    If you looked at my updated tuning file, you would see that I knocked that all the way down

  2. #22
    Tuner in Training
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    Mar 2024
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    I drove it.hpl

    #10 VVE-MAF test ss. braf idle test.hpt

    i actually got to drive it today got my shifter swapped out and it died doing a 3 point turn when i went to turn it around in the lot i feel like its getting closer. do you have a reference to vve table tuning on these gen 4 ls engines im not familiar with ls or ve tuning its all new to me

  3. #23
    Advanced Tuner
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    Aug 2021
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    Quote Originally Posted by moesmopar View Post
    I drove it.hpl

    #10 VVE-MAF test ss. braf idle test.hpt

    i actually got to drive it today got my shifter swapped out and it died doing a 3 point turn when i went to turn it around in the lot i feel like its getting closer. do you have a reference to vve table tuning on these gen 4 ls engines im not familiar with ls or ve tuning its all new to me
    Right now your BRAF table needs work. Once you are able to drive it without it stalling, you can tune the MAF and VVE. I just added a quick 2% to the whole BRAF table to see if this helps with stalling. Add Proportional & Integral Idle Airflow to your channels in the scanner.

    #10 VVE-MAF test ss. braf idle test (1.2.hpt
    Last edited by LS ROB; 1 Week Ago at 07:01 AM.

  4. #24
    Tuner in Training
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    Mar 2024
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    uploading it now. i will update after i try it out and make a few changes myself

  5. #25
    Tuner in Training
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    Mar 2024
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    Well bad news never got to try the tune, the interior guy spray painted into the obd port and I didn?t realize and caused bad connection during the write and bricked the pcm -_- looks like the car is gonna miss Comicpalooza :sad:

  6. #26
    Senior Tuner edcmat-l1's Avatar
    Join Date
    Aug 2006
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    5BA8
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    I'd clean the connector pins and try again. I've never seen a GEN4 PCM "brick" during a normal write process, especially a write calibration. HPtuners even has a recovery mode in the case that something does go wonky during the write. That just doesn't sound right. You may be experiencing a condition you're unfamiliar with trying to diagnose and just interpreting it as a "bricked" PCM.

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