o2 sensor question
#2
Senior Member
Join Date: Jun 2012
Location: PA
Posts: 524
Likes: 0
Received 1 Like
on
1 Post
Year: 1998
Model: Cherokee
Engine: 4.0L I6 Power Tech Engine
I would assume that since the up is before the cat and down is right after, there is probably a difference in them.
#3
Member
Join Date: Apr 2009
Location: South Jersey
Posts: 190
Likes: 0
Received 1 Like
on
1 Post
Year: 1996
Model: Cherokee
Engine: 4.0
their is a difference. The one closer to the engine is the upstream sensor. the one behind the cat towards the rear of the vehicle (really it's in the middle) is the downstream. the connectors are different as well. i believe the bung size is the same for both though
#4
Herp Derp Jerp
Join Date: Nov 2011
Location: Parham, ON
Posts: 18,251
Likes: 0
Received 13 Likes
on
12 Posts
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
Standard size bung but the US and DS sensors are slightly different. On 2000+ models with 4 O2 sensors the two US and DS sensors have different wiring.
NTK is the OEM by the way. Very cheap on Rock Auto.
NTK is the OEM by the way. Very cheap on Rock Auto.
#5
Newbie
Join Date: Sep 2013
Location: up by the Lake in Jersey
Posts: 23
Likes: 0
Received 0 Likes
on
0 Posts
Year: 1998
Model: Cherokee
Like the other guys said upstream and down stream are different sensors . I sell Denso O2 sensors and never had any problems as far as fit or function . i had to replace both on my 98 . just make sure when you buy them get OE style not the PITA universal ones
Last edited by njpartsguy; 12-19-2013 at 01:51 PM.
#6
CF Veteran
Join Date: Aug 2010
Location: Canton, MI
Posts: 8,357
Likes: 0
Received 90 Likes
on
74 Posts
Year: 1999
Model: Cherokee
Engine: 4.0
Google 'NTK Oxygen Sensors' and you should be able to fined the NTK/NGK site which will give you the NTK O2S part numbers for your application.
Trending Topics
#8
Senior Member
Thread Starter
Join Date: Dec 2011
Location: WV
Posts: 930
Likes: 0
Received 0 Likes
on
0 Posts
Year: 98
Model: Cherokee
Engine: 4.0 i6
Thread
Thread Starter
Forum
Replies
Last Post
jmarzo
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
16
10-18-2022 04:11 PM
jeeplover45
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
4
09-04-2015 06:44 AM
jmarzo
Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go here
3
09-03-2015 11:03 AM
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)