2004 50 State Emissions Oxygen Sensors - JeepForum.com
 1Likes
Reply
 
LinkBack Thread Tools
post #1 of 21 Old 03-30-2020, 10:51 AM Thread Starter
agh3092
Junior Member
 
agh3092's Avatar
2004 WJ 
 
Join Date: Jan 2020
Posts: 25
2004 50 State Emissions Oxygen Sensors

I would like to know how many oxygen sensors that are on my jeep.
It listed as a 50 state on the emission label. Online it shows federal emissions taking two sensors and California emissions taking four of them. I would like to go on and order them as I have a few things to do underneath the jeep soon.
Thanks in advance.

agh3092 is offline  
Sponsored Links
Advertisement
 
post #2 of 21 Old 03-30-2020, 11:22 AM
jtpeters
Senior Member
2004 WJ 
 
Join Date: Jun 2016
Location: Huntsville
Posts: 538
Garage
@agh3092
Here's some info that may help you.
Attached Files
File Type: pdf Oxygen Sensor Information.pdf (862.4 KB, 11 views)

2004 Jeep Overland WJ 4.7 H.O. (Bought new in Oct 2003)
2014 Jeep Overland WK2 5.7 Hemi (Bought used in 2016 w/7k miles)
1970 Ford Mustang Boss 302 (in Family since 1974)
2013 Ford Mustang Boss 302
2011 BMW 328i

Last edited by jtpeters; 03-30-2020 at 11:24 AM. Reason: Added Information
jtpeters is offline  
post #3 of 21 Old 03-30-2020, 11:49 AM Thread Starter
agh3092
Junior Member
 
agh3092's Avatar
2004 WJ 
 
Join Date: Jan 2020
Posts: 25
I have that printed off and thank you.With mine saying 50 State, which would or could it be. California or Federal?
agh3092 is offline  
 
post #4 of 21 Old 03-30-2020, 12:09 PM
jtpeters
Senior Member
2004 WJ 
 
Join Date: Jun 2016
Location: Huntsville
Posts: 538
Garage
@agh3092
California

2004 Jeep Overland WJ 4.7 H.O. (Bought new in Oct 2003)
2014 Jeep Overland WK2 5.7 Hemi (Bought used in 2016 w/7k miles)
1970 Ford Mustang Boss 302 (in Family since 1974)
2013 Ford Mustang Boss 302
2011 BMW 328i
jtpeters is offline  
post #5 of 21 Old 03-30-2020, 12:19 PM Thread Starter
agh3092
Junior Member
 
agh3092's Avatar
2004 WJ 
 
Join Date: Jan 2020
Posts: 25
Thanks for solving that part. I went ahead and ordered the fours oxygen sensors. On got a code for one but might as well replace all at once and be done with it. Now if we can get the darn wipers working on the front.
agh3092 is offline  
post #6 of 21 Old 03-30-2020, 12:28 PM
jtec
Web Wheeler
 
jtec's Avatar
2014 JK Wrangler 
 
Join Date: Oct 2017
Posts: 7,994
Why are you changing the o2 sensors?
I would suggest a quick look at the exhaust on engine - do you see 2 mini cats?

A good idea, extra cash available, bored ?

When I see the price of OEM I think aftermarket.
When I see the quality of aftermarket I think OEM.
jtec is offline  
post #7 of 21 Old 03-30-2020, 12:28 PM
jtpeters
Senior Member
2004 WJ 
 
Join Date: Jun 2016
Location: Huntsville
Posts: 538
Garage
@agh3092
Please tell me you ordered MOPAR sensors....WJ is extremely sensitive.

2004 Jeep Overland WJ 4.7 H.O. (Bought new in Oct 2003)
2014 Jeep Overland WK2 5.7 Hemi (Bought used in 2016 w/7k miles)
1970 Ford Mustang Boss 302 (in Family since 1974)
2013 Ford Mustang Boss 302
2011 BMW 328i
jtpeters is offline  
post #8 of 21 Old 03-30-2020, 01:07 PM Thread Starter
agh3092
Junior Member
 
agh3092's Avatar
2004 WJ 
 
Join Date: Jan 2020
Posts: 25
Jtec... it is giving a few codes....
P0151 2/1 O2 Sensor Shorted To Ground
P0152 2/1 Sensor Shorted To Voltage.

Also I was wanting to make sure just how many it had as I only
recall seeing the ones on the passenger side while we were replacing the

shift solenoid in the transmission.
Thanks again
agh3092 is offline  
post #9 of 21 Old 03-30-2020, 01:12 PM Thread Starter
agh3092
Junior Member
 
agh3092's Avatar
2004 WJ 
 
Join Date: Jan 2020
Posts: 25
jtpeters...

I have not ordered the mopar ones yet. I just ordered some cheaper ones to see if I can get all the bugs worked out. I know I might be wasting a few dollars in the long run but hey that's just a few the government wont get.
agh3092 is offline  
post #10 of 21 Old 03-30-2020, 01:21 PM
jtec
Web Wheeler
 
jtec's Avatar
2014 JK Wrangler 
 
Join Date: Oct 2017
Posts: 7,994
Suggest you look at B2S1 and inspect the wiring before spending.

diagram should help you
Attached Thumbnails
emissions fed or calif.JPG  

When I see the price of OEM I think aftermarket.
When I see the quality of aftermarket I think OEM.
jtec is offline  
post #11 of 21 Old 03-30-2020, 05:30 PM
Uniblurb
Web Wheeler
 
Uniblurb's Avatar
2004 WJ 
 
Join Date: Jan 2012
Location: Central
Posts: 10,203
Believe all those diagrams are the same as the ones posted on wjjeeps for oxygen sensors. And those diagrams are from the factory service manual (FSM) and/or official parts list.

http://www.wjjeeps.com/oxygen.htm

I've found those diagrams are wrong for my 04 4.7 Limited with Federal or 50 state emissions. I have 4 oxygen sensors with 2 small cats. There's an upstream before cat and downstream after cat o2 sensor with each small cat but there's no larger rear cat before the muffler.

Not sure why they changed this on the 04 4.7 but that's what I've found at least. And my build sheet plus under-hood sticker both list Federal/50 state emissions package.

PS/edit, I agree with jtec you best inspect the o2 sensor wiring before ordering any new sensors. The wiring can be melted on the exhaust if not secured correctly, connector could be unplugged/loose, and my favorite is the darn rodents can chew up the wiring!

2004 4.7L WJ Limited, 96 4.0 ZJ


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Uniblurb is offline  
post #12 of 21 Old 03-30-2020, 06:25 PM Thread Starter
agh3092
Junior Member
 
agh3092's Avatar
2004 WJ 
 
Join Date: Jan 2020
Posts: 25
I will get a chance tomorrow and get underneath to look around as I need to go ahead and change the fuel filter. Then do the transfer case fluid change. It still has the original in it I am about sure.
agh3092 is offline  
post #13 of 21 Old 03-30-2020, 07:02 PM
Uniblurb
Web Wheeler
 
Uniblurb's Avatar
2004 WJ 
 
Join Date: Jan 2012
Location: Central
Posts: 10,203
If I remember correctly it's easiest to access those o2 sensors on the passenger side if you jack up the body behind the the front passenger tire but leave the axle down mostly.

And while you're down there you might as well check/clean the G102, G103 and G104 block grounds.

https://www.jeepforum.com/forum/f310.../#post39199354

On your 247 transfer case make sure you loosen/remove the fill plug first then the drain plug. You don't want to remove the drain plug first then find the fill plug is seized. Lots of rust cutter helps ahead of time since steel plugs and an aluminum threaded case don't like each other.

Good video below on changing the fuel filter and the audio gets a whole lot better after 1 min. Put some petroleum base lube on the filter/regulator port/line o-rings and less chance it's going to whistle loudly.


We've kinda gotten off-track on the o2 sensors but let us know what you find.

2004 4.7L WJ Limited, 96 4.0 ZJ


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Uniblurb is offline  
post #14 of 21 Old 03-30-2020, 08:00 PM Thread Starter
agh3092
Junior Member
 
agh3092's Avatar
2004 WJ 
 
Join Date: Jan 2020
Posts: 25
Where not off track to awful bad as I generally go in circles it seems since retirement. This Jeep is pretty much my project for this year.

I will most likely wait until the weekend to do the fuel filter. Ive watched about all of Martinbuilt videos too.

Thanks again.
agh3092 is offline  
post #15 of 21 Old 03-30-2020, 10:32 PM
rep-tile
Cash 4 clunkers survivor
 
rep-tile's Avatar
2004 WJ 
 
Join Date: Jul 2013
Location: bakersfield
Posts: 1,533
To answer your question, you can run your build sheet (it is free). All you need is your VIN. Somewhere on that report will tell you your emission type.

https://fcacommunity.force.com/RAM/s/equipment-listing

I would advise against cheap sensors, matter of fact cheap parts in general. You may add yourself another problem then run circles before undoing what you did and realize what your choice of component made the matter worse. For O2 sensors, I would use only Mopar, NTK or Denso (the last two have supplied the Mopar brand at one point or another). Bosh O2 sensors for instance are notorious for not playing well with Jeep/Chrysler.

Always a good idea to change out O2 sensors for fuel economy but in your case unlikely to resolve the codes.

04 WJ 4.0 - Avital 4103, DB-ALL
91 XJ 4.0 - Avital 4103, Stage-2 aFe intake system, BBK high flow Throttle Body, 703s injectors, Jones Exhaust A3518M-5
rep-tile is offline  
Reply

Quick Reply
Message:
Options

Register Now



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

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

Password:


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



Email Address:
OR

Log-in











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



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