P0155 code - Jeep Wrangler Forum

Go Back   Jeep Wrangler Forum > TJ Jeep Wrangler Forum > TJ General Discussion Forum

Join Wrangler Forum Today


Reply
 
Thread Tools

Please support our sponsors and let them know you heard about them on WranglerForum.com
Old 12-18-2011, 10:36 AM   #1
Jeeper
 
irishmedic's Avatar
 
Join Date: May 2011
Location: PA
Posts: 19
P0155 code

Hey Guys, just need a little help. Got an engine code of P0155, Heated O2 Sensor, can anyone tell me where that sensor is and if it is difficult to change. Thanks in advance for your help.

irishmedic is offline   Quote
Old 12-18-2011, 11:23 AM   #2
Jeeper
 
TnDz TJ's Avatar
 
Join Date: Apr 2011
Location: Reno, NV
Posts: 2,925
A little info on your Jeep would be helpful to us as well.. lol!

YEAR/MODEL
ENGINE...etc...

P0155--- 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)

On the 4.0

BANK 1 = cylinders 1,2,3
BANK 2 = cylinders 4,5,6

Bank 1 has (2) O2 sensors as well as Bank 2 having (2)

UPSTREAM AND DOWNSTREAM

So...
BANK 1 UPSTREAM ( above precat on cylinders 1,2,3)--AKA BANK 1 SENSOR 1
BANK 1 DOWNSTREAM ( below precat on cylinders 1,2,3)-- AKA BANK 1 SENSOR 2
BANK 2 UPSTREAM ( above precat on cylinders 4,5,6)--AKA BANK 2 SENSOR 1
BANK 2 DOWNSTREAM ( below precat on cylinders 4,5,6)--AKA BANK 2 SENSOR 2

Your BANK 2 SENSOR 1 O2 is just above the pre cat and in the rear section of the exhaust manifold. It's a little tight, but you should be able to get to it no problem

Not the EXACT match of what you have, but you can get the idea of location from the pic...

__________________
~Todd~ 2004 X 4.0 5 speed---SOLD
4" Lift, 4.56's, 33" Duratracs on M/T Classics
RR SYE, Tatton CV, MML, BL, TT, Dynomax Exhaust
Hella Lighting: Driving, Fogs and H4 E-Codes
NOPE! ... and NEVER will be...
TnDz TJ is offline   Quote
Old 12-18-2011, 09:30 PM   #3
Jeeper
 
irishmedic's Avatar
 
Join Date: May 2011
Location: PA
Posts: 19
Quote:
Originally Posted by TnDz TJ View Post
A little info on your Jeep would be helpful to us as well.. lol!

YEAR/MODEL
ENGINE...etc...

P0155--- 02 Sensor Heater Circuit Malfunction (Bank 2 Sensor 1)

On the 4.0

BANK 1 = cylinders 1,2,3
BANK 2 = cylinders 4,5,6

Bank 1 has (2) O2 sensors as well as Bank 2 having (2)

UPSTREAM AND DOWNSTREAM

So...
BANK 1 UPSTREAM ( above precat on cylinders 1,2,3)--AKA BANK 1 SENSOR 1
BANK 1 DOWNSTREAM ( below precat on cylinders 1,2,3)-- AKA BANK 1 SENSOR 2
BANK 2 UPSTREAM ( above precat on cylinders 4,5,6)--AKA BANK 2 SENSOR 1
BANK 2 DOWNSTREAM ( below precat on cylinders 4,5,6)--AKA BANK 2 SENSOR 2

Your BANK 2 SENSOR 1 O2 is just above the pre cat and in the rear section of the exhaust manifold. It's a little tight, but you should be able to get to it no problem

Not the EXACT match of what you have, but you can get the idea of location from the pic...
Sorry, it is an 03 w/ I6
irishmedic is offline   Quote
Old 12-19-2011, 08:08 PM   #4
Jeeper
 
TnDz TJ's Avatar
 
Join Date: Apr 2011
Location: Reno, NV
Posts: 2,925
The I6 in the 03 has the 4 O2 sensors.....
__________________
~Todd~ 2004 X 4.0 5 speed---SOLD
4" Lift, 4.56's, 33" Duratracs on M/T Classics
RR SYE, Tatton CV, MML, BL, TT, Dynomax Exhaust
Hella Lighting: Driving, Fogs and H4 E-Codes
NOPE! ... and NEVER will be...
TnDz TJ is offline   Quote
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not 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 Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
OBDII Code 2096 Marnix TJ General Discussion Forum 8 08-02-2014 08:11 PM
2.5L with code P0132, poor idle, lacks power nittanylns TJ Tech Forum 13 08-06-2010 08:45 PM
P0700 code, what to do and why only this code? Dixit TJ General Discussion Forum 18 07-10-2010 11:31 AM
P0605 code Old Blue TJ Tech Forum 3 08-29-2009 07:33 PM
Odd LJ paint code question rallykid TJ General Discussion Forum 3 01-06-2009 10:51 AM



Download our Mobile App

» Featured Product

All times are GMT -5. The time now is 05:17 PM.


User Alert System provided by Advanced User Tagging v3.1.0 (Pro) - vBulletin Mods & Addons Copyright © 2015 DragonByte Technologies Ltd.

Jeep®, Wrangler, Liberty, Wagoneer, Cherokee, and Grand Cherokee are copyrighted and trademarked to Chrysler Motors LLC.
Wranglerforum.com is not in any way associated with the Chrysler Motors LLC