So I need someone to actually help me with this problem. LONG story short is every time I download a tune onto my 2000 GT. I have a error code. It is the bama tuner from Americanmuscle.com. The Check Engine light is not ON. However when I go to manually check the codes, a P0602 code comes up. P0602 OBD-II Trouble Code: Control Module Programming Error. Somewhere the tune isn't being fully accepted.. and I have no idea how to fix that, or what to look for on fixing this. Someone please help. I have downloaded the tunes in other "helpful" ways or alternatives but it doesn't matter, the code is always there as soon as I put the tune on. When I revert to stock, it isn't there??I mean I can download the tune, turn the key off and instantly go check for that code it'll be there. I do the same thing reverting to stock, that code isn't there. I've went through many tunes and it's always there. I've been reassured that it isn't a big deal but it is a issue because it shouldn't be popping up regardless. It's really frustrating because you spend 400 dollars on something for it to do what it is intended to do.. but it isn't. Has anyone else experienced this problem? If you fixed it, what did you do?