Ok i've been having problems with starting. It's a 99 sunfire and i took it to a mechanic and he said that it was the ignition switch because when it would start the theft light would be lit solid then go off and start. If you shut it off took the key out and put it back in no matter how many times the theft light wouldn't come on at all even on the on position where it should. So i just put a new one in which was the little black sensor thing. Well when i went to do the relearn it started right up with out doing it. And when i turn the key to on the theft light still does the same thing it stays lit with no blinking at all. What is going on here because my abs lights are on to and he said there's nothing wrong with the abs at all that he had just fixed on with a similar problem and with the abs and it was the ignition switch.