I need some help. I just put a new engine in my 01. I have only put 30 miles on it since doing so. The problem I am having is it keeps giving me a P1351 code followed by a P0353 or/and P0352.
What I have done, the PCM was disconnected from power for about 5 months, reset it anyway.
1. New CPS, CKS, Plugs, Coil.
2. Set TDC and CPS timing
I have reset the PCM several times trying to figure it out. It starts and idles fine at the start, but after about 10 minutes of running the codes come back and begin misfiring with poor idle.
Does the PCM have to relearn/learn everything? Is this what I just have to deal with for the first 50 warmup periods? Any help would be awesome. Thanks in advance.

 

I'm not much help but I don't think that's something that will just go away. Mine sat about the same amount of time and it didn't have any problems or codes after the new motor was installed.

 

All those codes are pointing toward the coil rail being bad. Now you said new coil, do you mean a single coil or the massive coil that bolts up to the head (no spark plug wires)? A 01 should have the coil rail.

 

UPDATE:

I wasn't happy with the CKS that I put in it. It was an aftermarket from Autozone and replaced it with an OEM Jeep one. Needless to say, it didn't like it and the flywheel took off the top of the sensor. I removed the inspection plate and cracked the engine over only to find the flywheel looked bent. So I dropped the transmission and sure enough, was bent. So after replacing the flywheel it ran until it started missing. Found I had a loose wire to the aftermarket coil plug. Fixed it and now runs great.

 

That sucks about the flywheel but glad you got it figured out.

 

Another horror story for aftermarket sensors.

 

Damn! I should have known. There was another guy that had a bent flexplate on an engine swap and it must have gotten bent when they set the engine on the ground after pulling it. Yeah, that crank sensor resides about 1/16" away from the windows in the plate and I knew as soon as you said it took the face of the sensor off that's what it was. Mopar sensors used to have a cardboard spacer glued to the face that gets ripped off on first startup.