Pontiac Problems? Ask a Mechanic for Answers ASAP
Were all 6 fuel injectors replaced with new ones ?
The cam sensor is used by the computer for injection control on all cylinders.The MAF is used for fuel delivery for all cylinders.i do not believe either of these 2 parts are your problem.
If the cam lobe was flat it would be flat on a cold or hot motor.& when this happens a cylinder power goes down & does not come back no matter what.I have seen a broken valve spring cause a intermitten missfire ,but usually only on one cylinder.