Jeep Repair: P0353 on a 99 WJ, camshaft timing, defective wiring

Question
Hi Kevin,
Just had the upper engine rebuilt on my WJ @ 165k miles and all looks good, except that the engine runs rough and has a P0353 Fault code.
Is this problem specific to cylinder #3?
Installed Champion Platinum Spark Plugs, do they have to do with this? (read some Chrysler 4.7 engines do not like Platinum?)
What is the correct procedure to check the coils?
read in internet that this might have t do with the camshaft timing position?
Thanks!

Answer
P0353-IGNITION COIL #3 PRIMARY CIRCUIT

POSSIBLE CAUSES
OPEN/HIGH RESISTANCE IN THE ASD RELAY OUTPUT CKT
OPEN/HIGH RESISTANCE IN THE ASD RELAY OUTPUT CKT
COIL ON PLUG #3 DEFECTIVE
WIRING HARNESS INTERMITTENT DEFECT
COIL DRIVER #3 CKT OPEN
COIL DRIVER #3 CKT OPEN
COIL DRIVER #3 CKT SHORTED TO GROUND
COIL DRIVER #3 CKT SHORTED TO GROUND
COIL RAIL DEFECTIVE
PCM DEFECTIVE
WIRING HARNESS INTERMITTENT DEFECT
PCM DEFECTIVE