2.7t c5 Code P0301
 

Can anyone help me with this??? ENGINE CODE P0301

I have this code on the scan tool, so i bought a new coil pack for cylinder 1, that did not work. I switched the ICM's to see if it would follow, that did not work. I have read many forums and they all say coil packs and spark plugs. I have replaced both of those and nothing changes. It doesn't seem like the ICM's are bad but could that be the problem.

Words of wisdom, please!!!

well theres still a fuel injector you can swap around. if they does nothing you need to compression test it. If its good, still missing, could be no signal is happening to the coil or injector