Please help, I am getting a code 81 that the thermactor is bad,(whatever that is, I think its the whole air system but maybe wrong) the car drives like crap, with t he timing spout in as soon as the engine gets hot, it starts bucking like a horse and is undrivable. With spout out, it will last a bit longer. Also charged a/c now overheats. (lol almost had a/c) I did find the pipe from the diverter to the catalyitic converter broken lol, so I used one of those muffler repair kits, no luck. Any help would be appriciated, its an 86 gt stock (till i fix this problem haha)