ok guys i am sick of my thunderbird....no one seems to know what the problem is...not even ford classic...so i wanna see if there is anyone on here that might know what the hell my cars problem is...here goes....one day i started my car then out of know where the idle starts to mess up. exhaust is pouring out of my exhaust and underneath my car. i opened the hood and i smelled raw gas. well i figured out one thing...one of my fuel injectors went bad so i replaced it. also my cadallic converter was bad so i replaced it with the true dual exhaust system. i put new plugs and wires in. when u stand at the back of my car the right exhaust pipe is pouring out exhaust and the left side isnt. i also figured out that cylinders 2 and 3 are getting gas all over my spark plugs and fouling them out. i cant figure it out. i took it to two places including ford. ford told me that my computer was messed up and it needed to be replaced. the quoted me $464.00. i personally think it is probably one of my oxygen sensors or a valve spring is broke or needs to be replaced. if anyone has any ideas please help me....i have already spend 500$ not including the computer....thanks guys.