I just bought a auto cal with tunes from kory willis and went to flash it on my 2003 chevy duramax and it wouldn't respond and now my truck won't start at all. Is my ECM locked or screwed up? I'm just wondering how to get this fixed and how to flash it without having this happen again. My truck is still sitting and won't crank or nothing. Just need to know what I need todo to get it fixed. Would bench flashing it fix the problem or is it to late for that?