2005 TJ P0133 Code

[TJBruce]

Hey Everyone,

I have recently purchased a 2005 with 115,555 miles on it. I have been slowly doing some maintenance on it as you can see below. It's been running great but once I hit 116,000 I got the P2096 code. After reading a lot of threads I decided to just try and resolve the issue by replacing the O2 sensors. I got the NTK ones like everyone suggested and made sure to install them in the right locations. It came from Hawaii so I assume it has the California emissions (has 4 O2 sensors). After installing and clearing the code it would come back every 50-100 miles. Others have said it could be a computer issue so I kept clearing it until i would have time to go to a dealer. Yesterday I got a different code; P0133. I know I installed the right sensors in the right locations. I have read the other threads about this issue but, wanted to start my own so, that I could be clear as to what I have and what I've done. I would like to try and resolve it myself if I can ( I like learning so if I can avoid brining it to a shop I'd prefer that). If anyone has any ideas as to where I could start and what to do I would greatly appreciate it. (I am a new Jeep owner and am working on my mechanical skills).

Thank you,
Jonathan

 

[JKP]

Make sure the mini cat to exh manifold bolts are tight. Look straight up from underneath. IIRC, they are 15mm. You shouldn't be able to wiggle the cats.

Also be aware that the 05, 06s are prone to PCM failure. If you start getting O2 heater codes, hard shifting, engine shutting down, gauges dropping out, the PCM is going.

 

[TJBruce]

Make sure the mini cat to exh manifold bolts are tight. Look straight up from underneath. IIRC, they are 15mm. You shouldn't be able to wiggle the cats.

Also be aware that the 05, 06s are prone to PCM failure. If you start getting O2 heater codes, hard shifting, engine shutting down, gauges dropping out, the PCM is going.

Thank you! I will check those out. It's happened twice now since that P2096 code came that after I fill the gas tank it will give me a rough idle and has stalled.

I also want to note that this is an automatic.

 

[Coalcracker18]

I get the O2 heater code all the time, the latest has been running to lean and flickering lights on the dash and headlights. I had mine sent out to be tested and they said all is good but I’m going to wind up replacing it anyway. I’ve only put 3200 miles on it since I owned it the computer has the update label on it but I’m not taking any chances.