2004 Pacifica P0353
 

I have a 2004 Pacifica AWD with a constant P0353 code (misfire #3) that has been going on inconsistently for almost a year now. I then replaced spark plugs and coil and no change. Took to mechanic and they said it was the PCM. Changed that out and the problem went away for a few months. Then a few weeks ago the code returned. Took it again to mechanic for troubleshooting and they said again PCM. Had it swapped under warranty and just threw it in today. Still the P0353 is there. So far I have swapped out spark plugs, coil, fuel injector and PCM. Not much left could be wrong except the engine wiring harness maybe?? :confused: Any ideas would be greatly appreciated!!
Thank You!

Check this thread:
https://www.chryslerforum.com/forum/...5-p2314-19362/

So I would need to check wiring continuity between pin 7 connecter c2 and coil3? hmmmm

try switching wires to plugs and see if error code changes wit wire change or not!

I almost forgot it was a wiring problem. Found 4 wires near the PCM that were corroded. Cut and reconnected and heat shrunk them and issue went away.