I have a 2001 spyder and I was getting a misfire code on cly #2. The coil pack was bad so I replaced it with a new one. Engine sounded fine no miss and the engine light turned off. When I go to drive it after two or three minutes I lose power. Alot of power the car can hardly even move its self back down my driveway. If I let it sit for a while it will start and run good for only couple of minutes then crap. Anyone have a clue because the scanner shows no codes.