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Thread: Unlocking pcm

  1. #1
    New Member
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    Default Unlocking pcm

    Hey guys, working on a 99 Ls1 Camaro. Car has a tune in it but when i go to view it, it states that it has been locked. I tried flashing over it, doing a complete reflash etc.. but nothing works. I just purchased a new license today for it but I can't get that far in order to lock the license to the pcm.

    What are my options? Will i have to buy another pcm or send it out to be unlocked?

    Thanks!
    Andy

  2. #2
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    Hello Andy,

    I'm not sure what the correct answer is ... I purchase used LS1-B PCMs for around $30 (give or take a little). Purchasing a used PCM is probably the most cost / time effective route.


    Regards,
    Taz

  3. #3
    Joe (Moderator) joecar's Avatar
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    You have to get who ever locked to unlock it...

    or get a used PCM as Taz said, 1999-2002 F-car PCM will be good (transmission segment swap can be done to suit A4/M6).

  4. #4
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    Try to read it using V8, select Alt Keys if necessary. Cant hurt to try, make sure you select 99-08 LS1-B PCM and NOT 97-98 LS1-A PCM.

    Or buy a used PCM for cheap, they're easy to setup with your engine/trans specs and tune from there.
    ~Erik~
    2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
    2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
    2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.

  5. #5
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    Thanks guys for the replies. I went ahead and ordered a pcm today from a member in texas.

  6. #6
    Lifetime Member Chalky's Avatar
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    FYI but Jesse Bubb can unlock locked ECMs. Very reasonable from what I remember.
    2015 Z06 A8

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