Question about Diagnostic Code

**Redphoenix1998** · 01-27-2007, 01:19 PM

Hey Guys, can anyone Explain a Chrysler code for me? It's PO 1391 and it's described as low CMP or CMK. I have no idea what the hell that means! Thanks in advanced

**2001NBMZ28** · 01-27-2007, 01:35 PM

Don't have a clue, but CMP and CMK sounds like it's related to cam or crank position sensor(s).

**0rion** · 01-27-2007, 01:50 PM

Did a search on the web and found this so far. I'll see if I can find any other info on it.2001NBMZ28 is on the right track.

p1391

another pretty good one I found, seems there's no shortage of this problem with the mopars. I'm finding a ton of people asking about it.

p1391 part2

**Redphoenix1998** · 01-28-2007, 11:48 AM

thanks for all the help guys

**lrader99** · 01-28-2007, 01:56 PM

your not going to find very much infor on that code...a P1 code is a manufacturer specific code. the only wayt to get the actual definition of the code is to call the dealer...and if you dont know what your looking for what you do understand what circuit is at fault you could wind up replacing a tailight bulb when really the interior door light is out...yes ive seen this happen