I have a 94 Camaro, 3.4l V-6, Problem is a engine miss during accel, have replaced plugs, plug wires, and fuel filter. Exhaust has good presure at idle so i don't think it could be an exhaust problem. I think it may be a senor problem but don't know where to start. The check engine light does not come one, and have tried to jump pins A and B to retreive codes but codes do not flash. any help would be greatful!