ok my car a 2002 ws6 trans am started blowing smoke like crazy out of the exhaust and it wouldnt stop till i hit a cruise speed of about 50mph and above and every time i come to a stop and take off it would blow a chunk of smoke out and than stop and my service engine light came on and my power is like gone when i hit the gas pedal i can feel it not taking off as fast as it does before all this became a issue...so if anyone out there knows anything about what im talking about please let me know so i might at least get the general idea of whats wrong with my car!!!!