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Thread: T-42 stock tune for OS 24252617

  1. #1
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    Default T-42 stock tune for OS 24252617

    I need a T42 stock tune (2008 Silverado, 5.3) that uses OS 24252617. If anyone can point me in the direction of one I would appreciate it, thanks.

  2. #2
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    Ive looked through all my stock tunes and i have every OS but that one...

  3. #3
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    Quote Originally Posted by nonnieselman View Post
    Ive looked through all my stock tunes and i have every OS but that one...
    Thanks for trying, I have been searching and haven't found it.

  4. #4
    Lifetime Member Cougar281's Avatar
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    You sure that's the right year/model/OS? I was bored and looked up calibrations for every gas 2008 Silverado VIN I could find and every one from the 4.3 v6 up to the 6.0 all had the 24239927 OS.

    Sent from my Pixel 5 using Tapatalk

  5. #5
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    Quote Originally Posted by Cougar281 View Post
    You sure that's the right year/model/OS? I was bored and looked up calibrations for every gas 2008 Silverado VIN I could find and every one from the 4.3 v6 up to the 6.0 all had the 24239927 OS.

    Sent from my Pixel 5 using Tapatalk
    You're right. The module that came with my truck (and I believe to be faulty) uses that OS. I bought a replacement (online) and when I tried to load it I got an error looking for the OS I posted. I thought maybe the new module was a different OS for the same year truck but I haven't found that OS associated with the year/model of my truck. Now I'm thinking I have the wrong module. I read the file from my old module, so now I need to find the right module (I think). Thanks very much for your reply.

  6. #6
    Lifetime Member ChipsByAl's Avatar
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    You can refer to https://tis2web.service.gm.com/tis2web with the VIN from your vehicle and see what the correct calibrations are. Or if its a project vehicle, you can use the VIN from the ECM (if it is correct!).
    Al
    "Trash that carb and get Injected!"

  7. #7
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    I don't think you can brick it. You will have to write all 4 modules though, I've never checked with efilive stuff though, sry.

  8. #8
    Lifetime Member Cougar281's Avatar
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    You SHOULD be able to full flash the tune you read from the original TCM to the new one. I don't think the T42's have the same restrictions/risks with regards to OS compatibility that newer modules tend to have.

    Sent from my Pixel 5 using Tapatalk

  9. #9
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    Quote Originally Posted by Cougar281 View Post
    You SHOULD be able to full flash the tune you read from the original TCM to the new one. I don't think the T42's have the same restrictions/risks with regards to OS compatibility that newer modules tend to have.

    Sent from my Pixel 5 using Tapatalk
    I'm going to try that, I hope you're right. Thanks for the replies!

  10. #10
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    Okay, here is what I get when I try to full flash the new module. Am I doing something wrong here?

    Executing: C:\Program Files (x86)\EFILive\V8\Config\T42_F.obj
    Virtual Machine Started
    Script Loaded
    Script Verified
    Checking Data File...
    Executing: Boot Loader...
    Unlocking: Trying MFG Key...
    VIN: 00000000000000000
    OS: 24252617
    Serial: BKK011040008
    Operating system mismatch between file: (24239927) and controller: (24252617).
    Please: Wait...
    Script exited with code $0540: Incompatible operating system.

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