I replaced the spark plugs in my '04 Trep, Police model. Now, the check engine light is on. I'm getting codes P0355 (Ignition Coil E Primary/Secondary Circuit) and P0352 (Ignition CoilB Primary/Secondary Circuit). I've checked all the wires - even removed, inspected, and replaced the plugs. What am I missing?

 

#2 and #5 either u damaged the coil packs or forgot to plug up the coils or damaged the wires to them.

 

I just changed the plus in my daughters 2001 2.7 tonight and now I have a P0352 code.
I know ht is something up with the coil pac so I switched number 2 with number 4 hoping if the pac was bad, the code would move form cylinder 2 to 4, Disconected the battery while I was switching them and tried again and I stil get the P0352 code for cylinder 2 not 4 like I would have thought.

What should I check next?

 

Never mind. I think they sent me another bad replacement PCM. The original PCM went bad so I ordered a rebuilt PCM from ACE (Auto Computer Exchange) and the first PDM they sent was bad and stil lthrowing a P0601 code. Then sent me a new PCM which I also installed tonight and now it is making the car run rough and have the P0352 code.

To verify this, I plugged the 1st replacement PCM back in and the car started idling ok and the P0352 code was gone but the P0601 was back. When I switched them back, the P0352 came back so it must be in an issue in the PCM. I wil have to call them again tomorrow. This is starting to get old.