are ya sure that the crank and cam are properly timed?? I know that the car has all the sensors and shit, but they are not desgined to compensate nor tell if the engine was not mechanically timed properly.
Three essentials of combustion in an engine are air, fuel, and spark. if you've got fuel, and spark, (air is pretty much a no brainer...) I'd recomend rechecking the timing and the firing order, if it's 180 out, which is what it sounds like, the symptoms you have noted will occur.
Nate, call me if ya want....