I have looked at the possibility that it is jsut a bad motor mount. I have domeone put the car in drive witht brake on. The engine really chugs. It seems to run so rough it shakes the entire car. I am going to replace the mount but I still believe it the engine is running bad.
I have a used PCM. If it is not to hard to change I may switch them out to try it. Do I have to remove the dash to switch it out?