i have a 95 mustang gt convertible with coldair intake and off road hpipe, and flowmasters. i recently tried to plug in a superchip designed for a cobra. the guy said it would be fine. well it made my car run like crap. so i took it out. it ran better after takin it out but has still been sick ever since. then the other day i started it and it quit about 2 min later. and it wouldnt start back. i waited about three hours later and tried again. it started but quit after a couple min. wtf is wrong with my car?? could it be a computer prob? if anyone has any suggestions im open. thanks