Ok so quick history on what I've just had done. I ran into some unfortunate circumstances a couple weeks ago and sucked up some water into my 2009 3.8 engine, blew out cylinder 3 at 50,000 miles. I just got a remand engine dropped in, along with new plugs and clutch.
While on my maiden voyage I've noticed there is a problem. Everything is good until 2500-3000rpm. If I were to let off the gas above 2500rpm then try to accelerate again, I get nothing. I have to wait for the rpm's to drop before I can accelerate again. This does not happen in any specific gear, just above the specified rpm range.
I do have a check engine light. p0340 camshaft position sensor code. From what I understand, I need do have a relearn done on it at a Chrysler dealership. My ESC light is also on.
I'm trying to figure out what the problem could be here. Any help or ideas would be appreciated.

 

Why don't you fix the code and see if that resolved the issue?

Northridge 4x4

 

Try taking your Jeep to Autozone or Oriely's and have them read and clear the codes they can. Sounds to me like it is going into limp mode. Did you reprogram the ECU for your gears and tire size? Also check to make sure you did not crimp a wire during the install.

R/
Will

 

I'm going to try fixing the code first and go from there. I tested to make sure the sensor is getting correct voltage yesterday and that was good. Could timing be an issue here?
I've tried clearing the code but it immediately returns

 

Have you tried driving it 20-30miles to see if ECU will clear itself?