COS3 Locked PCM
03-19-2013, 06:11 AM
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COS3 Locked PCM
I installed cos3 yesterday on my truck everything went fine. I then went to install my stock tune into cos3 on the PCM and it will not let me. It says the current tune file is unreconizable on the PCM. I tried doing a complete reflash to the stock os and to cos3 both getting the same error. Any ideas of what to do?
Thanks
Thanks
03-20-2013, 06:26 PM
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Ok so I went yesterday and I was able to reinstall COS3 and the stock tune. Everything went flawlessly. I then went to read the pcm and it now says it is locked.
Any ideas of what I should do now. Thanks for the help
Any ideas of what I should do now. Thanks for the help
03-21-2013, 11:15 PM
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Did you email efi live i know some guys had an issue with them self locking and not knowing the key it dumps it in a file not sure which one but i had a LB7 duramax do that.
Also try $FFFF as a key
Also try $FFFF as a key
Last edited by roughneck427; 03-21-2013 at 11:42 PM.
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