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Thread: trouble reading 2006 silverado 2wd pcm even after dealer reflash to stock

  1. #1

    trouble reading 2006 silverado 2wd pcm even after dealer reflash to stock

    i had trouble downloading a Silverado SS stock tune file for a friend, we figured it was tuner locked, so i gave the pcm to a friend at a dealer to flash the computer back to stock for that VIN

    he flashed it back to stock and i still have trouble reading it

    ID: ******** Date: 03/06/09
    Hardware: 121 Firmware: 116
    Part Number: 6220
    Rom Status: 0 3F 0 82 0 1 0 0 FF
    SPI Info: 20 15 A5 5A 4E 41 0 0
    Config: CC 88 0 0 80 C0 System Status: F7 0 0 0
    Comm. Status: 0 0 0 0 0 On Time: 00:03:01.1950000, 00:02:52.7150000

    Type: Chevy Silverado (V8) 2006, P59
    VIN: 2GCEC19N961171375
    VCM ID: 2NA1AKSN6039
    ECM OS ID: 12606807 [Editor] [Scanner] P59
    ECM Calibration IDs: 12606807 12606706 12591429 12591468 12606609 12591489 12591530 12606770 12590008
    ECM Seed: 0

    error 2.JPGerror.JPG

  2. #2
    HP Tuners Support
    (foff667)
    Bill@HPTuners's Avatar
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    looks like the pcm is tunerlocked to be honest.
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"

  3. #3
    ugh, anyway to circumvent this. i dont care to look at a stock silverado tune haha i wish i could bulldoze it
    will i be left buying a new PCM and having it flashed with his vin basically

  4. #4
    Quote Originally Posted by denmah View Post
    ugh, anyway to circumvent this. i dont care to look at a stock silverado tune haha i wish i could bulldoze it
    will i be left buying a new PCM and having it flashed with his vin basically
    Use IDApro or hexplorer to unlock it, if you know how to do dissambly that is.

  5. #5
    Senior Tuner Russ K's Avatar
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    If it was tuner locked, I'm positive that even a Tech II can't flash it back to stock. I would try reading it in low speed. Had the same issue with a 2000 Corvette several years ago. After reading in low speed, I was able to flash it in high speed.

    Russ Kemp

  6. #6
    awesome, worth a shot,

    after all this trouble with the truck sitting at the fabricators house, the dude who has this truck finally says, oh yeah i bought that computer off the internet from X and X tuning... i have the stock one right here, why are you guys messing with that PCM...

    yep...

  7. #7
    Quote Originally Posted by denmah View Post
    awesome, worth a shot,

    after all this trouble with the truck sitting at the fabricators house, the dude who has this truck finally says, oh yeah i bought that computer off the internet from X and X tuning... i have the stock one right here, why are you guys messing with that PCM...

    yep...
    really...

  8. #8
    Potential Tuner
    Join Date
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    Quote Originally Posted by denmah View Post
    i had trouble downloading a Silverado SS stock tune file for a friend, we figured it was tuner locked, so i gave the pcm to a friend at a dealer to flash the computer back to stock for that VIN

    he flashed it back to stock and i still have trouble reading it

    ID: ******** Date: 03/06/09
    Hardware: 121 Firmware: 116
    Part Number: 6220
    Rom Status: 0 3F 0 82 0 1 0 0 FF
    SPI Info: 20 15 A5 5A 4E 41 0 0
    Config: CC 88 0 0 80 C0 System Status: F7 0 0 0
    Comm. Status: 0 0 0 0 0 On Time: 00:03:01.1950000, 00:02:52.7150000

    Type: Chevy Silverado (V8) 2006, P59
    VIN: 2GCEC19N961171375
    VCM ID: 2NA1AKSN6039
    ECM OS ID: 12606807 [Editor] [Scanner] P59
    ECM Calibration IDs: 12606807 12606706 12591429 12591468 12606609 12591489 12591530 12606770 12590008
    ECM Seed: 0

    error 2.JPGerror.JPG
    This is now my VIN... VCM OS is an updated version of the one listed here.
    I need to flash the 12606807 OS over the 12613246 OS that is on the VCM now. Can I complete this with a slow write?