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Unread 12-13-2013, 06:20 AM   #1
Deadhorse
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Need O2 sensor advice?

Have to get an inspection and check engine light is on, the diagnostic is showing both bank 1 and 2 sensors are failing. I can clear the system so the check engine light isn't on but in NYS would it pass inspection? if not are these what I need to buy and replace?

http://www.ebay.com/itm/Pack-O2-Oxyg...610534&vxp=mtr

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Unread 12-13-2013, 07:02 AM   #2
ChrisHager
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Usually they can see that you've cleared the light...

If you need new O2 sensors, go through Kolak. Any off brand O2 will cause you issues almost immediately.
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But ChrisHager makes me want to poor water on a burning bucket of gasoline now just out of curiosity.
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The latest lift kit from Rough Country? :D
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Your symptoms sounds just like what it does when it's not doing what it should because of how it is.
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Unread 12-13-2013, 07:35 AM   #3
Deadhorse
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How many sensors are there on an 04 limited?
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Unread 12-13-2013, 07:37 AM   #4
ChrisHager
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2 for Federal Emissions, 4 for California Emissions. Being that you said bank 1 and bank 2 are bad, I'd venture a guess that you have the California Emissions. I could be wrong as that's happened before (my wife can verify that) so I'd suggest crawling under and taking a look to see what you have before buying anything.

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Quote:
Originally Posted by tommyooooooh View Post
But ChrisHager makes me want to poor water on a burning bucket of gasoline now just out of curiosity.
Quote:
Originally Posted by billzcat1 View Post
The latest lift kit from Rough Country? :D
Quote:
Originally Posted by Jeeples View Post
Your symptoms sounds just like what it does when it's not doing what it should because of how it is.
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Unread 12-13-2013, 07:51 AM   #5
Deadhorse
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I think your wife is right Chris lol I've just been told that nothing after like 01 is cali emissions anymore but I appreciate the help.
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Unread 12-13-2013, 08:07 AM   #6
ChrisHager
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On the WJ, any year (99-04) can have Cali emissions. Take a look at the part numbers in the chart at the bottom of this page: http://wjjeeps.com/oxygen.htm
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ChrisHager's 'Grilled' Thread

WJ Torque Specs

Quote:
Originally Posted by tommyooooooh View Post
But ChrisHager makes me want to poor water on a burning bucket of gasoline now just out of curiosity.
Quote:
Originally Posted by billzcat1 View Post
The latest lift kit from Rough Country? :D
Quote:
Originally Posted by Jeeples View Post
Your symptoms sounds just like what it does when it's not doing what it should because of how it is.
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Unread 12-13-2013, 08:09 AM   #7
Deadhorse
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Crap I think you're right : (
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Unread 12-13-2013, 08:12 AM   #8
Deadhorse
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So the computer is showing bank 1 sensor 1 and bank 2 sensor 2, is there any way to tell which ones these are out of upstream front and back or downstream front and back?
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Unread 12-13-2013, 08:14 AM   #9
ChrisHager
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Assuming you have Cali (you still need to check):

Referring to the picture above...

Bank 1 Sensor 1: 1/1
Bank 1 Sensor 2: 1/2
Bank 2 Sensor 1: 2/1
Bank 2 Sensor 2: 2/2
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ChrisHager's 'Grilled' Thread

WJ Torque Specs

Quote:
Originally Posted by tommyooooooh View Post
But ChrisHager makes me want to poor water on a burning bucket of gasoline now just out of curiosity.
Quote:
Originally Posted by billzcat1 View Post
The latest lift kit from Rough Country? :D
Quote:
Originally Posted by Jeeples View Post
Your symptoms sounds just like what it does when it's not doing what it should because of how it is.
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Unread 12-13-2013, 08:24 AM   #10
doityourselfMM
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Just to be sure, does your 04 have the 4.7?

Are the codes showing O2 Heater failures? WJ 4.0s are prone to throwing heater failure codes when the temps < 40F. Not sure about the 4.7. I hate to see you replace good sensors if the problem is software related. What codes are you actually getting?
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Unread 12-13-2013, 08:46 AM   #11
Deadhorse
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I saw threads related to the incorrect heater codes and it is well below 40 here in upstate NY but the codes just pointed us to the O2 sensors, not sure what they were and the guy that did the reading has left.
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Unread 12-13-2013, 09:29 AM   #12
Artie24
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have the same codes popping up on mine whenever it gets really cold, usually they go away as soon as the it gets up above 40*
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Unread 12-13-2013, 09:51 AM   #13
Deadhorse
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Will a mechanic have anyway of diagnosing the codes to seeing if it actually is the sensors or the incorrect codes because of the cold?
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Unread 12-13-2013, 10:23 AM   #14
1025wj
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You can clear the codes but often you need to drive a specific amount of miles before your vehicle is able to be tested....after you clear the code. I ran into a similar issue, and made the mistake of replacing my sensors with Bosch...however i found out that the WJ's are very picky about what sensors you put in. The bosch were junk and had to change them after a month, i ended up with going NTK from Advance Auto which seem to be working fine after a year, the codes went away. Mopar sensors were expensive from the dealer and had to be ordered.
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Unread 12-16-2013, 12:56 AM   #15
link375
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