Hello, this is my first time here, and I need some info on the topic. I have a '92 sc 400 the check engine light would come and go. I had it checked out, but no problem. O f course at that time there was no check light on, but the mechanic said it could be oxeygen sensors. Well Sun. nite at 11;45 I looked in my side mirror to see like fireworks that had come from the exhaust. So I pulled over and the exhaust was red hot, so I got my brother to haul me in. But I barely enough power to pull it on the trailer. so I dropped the exhuast and punched the cats out, thinking they were clogged but still no power. Someone said to put new fuel filters on it they had a car that the exhaust got hot, because of that so i am going to try that . but if y'all have any advice ,I am listening.