I've got a 93 3.2 auto sho. It was my dads and he says it acts like its slipping but he unhooked something and it'll run good but only in 3rd gear. I'm wondering what electrical parts could be causing this. I'm planning on getting the upgraded (94-95) PCM. Is there anything else I need to look into? We bought the trans used, but it still seems to be ok mechanically. Any help is appreciated.