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Thread: Tuner Locked ECM

  1. 01-17-2006 #1
    txoutlaw
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    Tuner Locked ECM

    A friend of mine has a 99 Vette that has been tuner locked and he wants me to tune his car!!. I have Gen III tuner shop and need to know what option we have other than taking the car to the dealer (cost to much) to reflash the ECM to stock.

    I have no problem with going back to stock and starting over, but what is the process if any that I can do to achieve this?
    "A wise man once said that it is better to remain silent and appear ignorant, rather than speak and remove doubt".
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  2. 01-17-2006 #2
    Bill@HPTuners
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    bring it back to the origonal tuner and have the unlock it and flash it back to stock...thats what I did.
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"
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  3. 01-18-2006 #3
    Chris@HPTuners
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    Also, the dealer won't be able to flash the PCM to stock.
    I count sheep in hex...
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  4. 01-18-2006 #4
    S2H
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    you can also get an eprom reader/writer made for the little intel chip in the pcm..desolder it...erase...write new....put it back in....
    little bit of a pain in the ass...but If my memory recalls theres a post on here or on ls1tech somewhere about what you would need as I know I asked about it at one time..I think when I looked aroud I eneed up deciding that it would have been about $120ish total...and it was probably smarter and easier to just go get a new pcm or a used one somewhere and just use it if need be..LOL
    -Scott -
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  5. 01-18-2006 #5
    chrisj6
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    yeah i picked up a used pcm for $50 from a salvage yard, just make sure it comes from the year/make that you have a license for.

    Chris
    2009 Silverado Crew Cab 5.3L, stock.
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  6. 01-18-2006 #6
    jimmyblue
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    I thought you could "write entire" and make any old
    (compatible hardware) PCM your bitch? With a proper
    stock bin file, at least? Not so?
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  7. 01-18-2006 #7
    S2H
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    Quote Originally Posted by jimmyblue
    I thought you could "write entire" and make any old
    (compatible hardware) PCM your bitch? With a proper
    stock bin file, at least? Not so?
    not that I could do.....
    I tried to do so on a locked tune about 4 montsh ago....
    girl had an ed wright(spelling??) locked tune....
    I went and picked up a pcm at a salvage yard and we stuck that in..added 2 bar sd...and tuned from there...she still has the locked PCM sitting on a shelf in the garage..LOL
    -Scott -
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  8. 01-19-2006 #8
    Chris@HPTuners
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    Quote Originally Posted by jimmyblue
    I thought you could "write entire" and make any old
    (compatible hardware) PCM your bitch? With a proper
    stock bin file, at least? Not so?
    nope, to read or write a properly locked PCM you have to unlock it first.
    I count sheep in hex...
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