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Discussion Starter · #1 ·
can leaving it unhooked from a car for long periords or anyone know anyway that a pcm would lose a custom tune??
 

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Discussion Starter · #5 ·
That's not to say that the PCM can still go bad.
just curious cause it has been sitting in my closet for a year during my rebuild and am putting it back together soon

thanks for the replies
 
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