Code P0138 -

LinkBack Thread Tools
post #1 of 1 Old 10-01-2009, 07:39 PM Thread Starter
Registered User
1998 ZJ 
Join Date: Sep 2009
Location: Winterport, ME
Posts: 26
Code P0138

Im getting code P0138, bank 1 sensor 2. Theres only two sensors so its obviously the rear one. The CEL has been on since I got the Jeep so im not sure if its affecting my MPGs or not, its sucks gas like a chinese crack whore but its a 5.9 so im not sure if the sensor has much to do with that. Does the rear sensor affect gas milage at all on these?

1998 Jeep Grand Cherokee 5.9 Limited
Troy5061 is offline  

Quick Reply

Register Now

In order to be able to post messages on the forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
code p0138 bank one sensor 2 leechris ZJ Grand Cherokee Forum 3 01-13-2010 10:08 PM
p0138 engine code and thumping underneath wonderbrd937 ZJ Grand Cherokee Forum 16 02-07-2009 05:44 AM
P0138 and O2 sensor jnj64 ZJ Grand Cherokee Forum 3 11-26-2006 09:56 AM
CEL Code P0138 + Issues sunflash2012 ZJ Grand Cherokee Forum 4 06-22-2006 12:07 PM
Code: P0138 laxwarriors21 ZJ Grand Cherokee Forum 2 12-19-2005 10:22 AM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome