1996 plymouth voyager code po351 and cat getting cherry red

on my 96 voyager new coil pack,plugs,wires,and cat.getting a code po351 # 1 primary circuit and cat. converter getting cherry red please help

Sam

Have you checked the wiring from the PCM to the coil? By check I mean do a visual inspection for frayed/brocken wires, damaged connector contacts and continuity checks with a multimeter. If the wiring is good you may need a new PCM.

Is your service engine soon light not only on but flashing too?