How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Chris (aka-Moose) Your Own Question
Chris (aka-Moose)
Chris (aka-Moose), Technician
Category: Jeep
Satisfied Customers: 47629
Experience:  16 years of experience
Type Your Jeep Question Here...
Chris (aka-Moose) is online now
A new question is answered every 9 seconds

Wrangle Sahara Unlimited: I'm having this exact same problem.The

Customer Question

I'm having this exact same problem.
The P0138 & P0155 error codes occurred only after the Dealer replaced the TIPM and the ECU to solve an issue with the transmission going into limp mode.
I have since installed a rebuilt long block (not for this issue, but for troubleshooting info sake...I'm still under 500 miles breaking in the new engine).
I also replaced all 02 sensors (with Bosch).
I've tried the ECU reset (remove pos battery cable, short to negative, key on, lights on, lights off, key off). This reset the codes, but after a***** the codes came back.
I want to somehow convince the dealer to replace the ECU again after reading your post...or is there something else you can suggest? Any ideas?
Submitted: 2 years ago.
Category: Jeep
Customer: replied 2 years ago.
this is very much the same problem discussed on the following post
Customer: replied 2 years ago.
Expert:  Chris (aka-Moose) replied 2 years ago.
Hello, I'm Chris. Thanks for seeking us for help.
I am sorry for the delay in getting a response to you. Sometimes we get alot of customers and just can not keep up. Sometimes you just have to wait for the correct tech to login.
Do you even still need help. Sometimes customers seek help elsewhere or figure it out on their own before we get to each and everyone.
I am sure I can help a lot or a little at least something if you give me a chance and work with me. I am going to get an answer to you regardless if you reply or not sooner or later.
If your concern is urgent reply and let me know and if you have anything more you think will help me, to help you, let me know. I work on here normally 3pm-3am central.
Thanks Chris
Customer: replied 2 years ago.
Thanks for the reply.
I went ahead and took it back to the dealer.
I'll wait to see what their take on this is, then I'll resubmit if there are any other questions.
thank you.
Expert:  Chris (aka-Moose) replied 2 years ago.
Your welcome, I am still here if needed, keep me in the loop if you find you need my help on this O2 sensor wiring or PCM issue.