DodgeForum.com

2nd Gen Ram Tech 1994-2001 Rams: This section is for TECHNICAL discussions only, that involve the 1994 through 2001 Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.

O2 sensor, how many?

Thread Tools
 
Search this Thread
 
  #1  
Old 01-27-2011, 01:12 PM
dodgeman97's Avatar
dodgeman97
dodgeman97 is offline
Registered User
Thread Starter
Join Date: Jan 2011
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Default O2 sensor, how many?
1997 dodge ram 2500
360 cid 4x4

am told that there are 3 O2 sensors, i only find one, and its attached to the cat conv. inlet tube...

is this correct?

having bad gas milage...
 
Reply Like
  #2  
Old 01-27-2011, 02:53 PM
1969CoronetR/T's Avatar
1969CoronetR/T
1969CoronetR/T is offline
vaffanculo
Dodge Forum Moderator
Join Date: Oct 2008
Location: Pittsburgh, PA
Posts: 7,957
Likes: 0
Received 5 Likes on 3 Posts
Default
Welcome to the site. I will move this thread to the second generation Ram section,
FF
 
Reply Like
  #3  
Old 01-27-2011, 03:00 PM
pcfixerpro's Avatar
pcfixerpro
pcfixerpro is offline
Champion
Join Date: Apr 2007
Posts: 2,570
Likes: 0
Received 0 Likes on 0 Posts
Default
Originally Posted by dodgeman97
1997 dodge ram 2500
360 cid 4x4

am told that there are 3 O2 sensors, i only find one, and its attached to the cat conv. inlet tube...

is this correct?

having bad gas milage...
if the exhaust is stock, 97 should have two unless california emissions. One right before the cat, and one after the cat.
 
Reply Like
  #4  
Old 01-27-2011, 05:13 PM
J415's Avatar
J415
J415 is offline
Champion
Join Date: Feb 2009
Location: Bay Area, CA
Posts: 3,416
Likes: 0
Received 3 Likes on 3 Posts
Default
Originally Posted by pcfixerpro
if the exhaust is stock, 97 should have two unless california emissions. One right before the cat, and one after the cat.
Wrong. My 97 Cali emissions only has 1 pre and 1 post O2 sensor. 98 was when they started to add more O2 sensors for Cali trucks
 
Reply Like
  #5  
Old 01-27-2011, 07:20 PM
dodgeman97's Avatar
dodgeman97
dodgeman97 is offline
Registered User
Thread Starter
Join Date: Jan 2011
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Default
so having one O2 sensor in the cat is ok? there are two types of O2s one with a 12" pigtail and an 18", which one do i use?
 
Reply Like
  #6  
Old 01-27-2011, 07:42 PM
J415's Avatar
J415
J415 is offline
Champion
Join Date: Feb 2009
Location: Bay Area, CA
Posts: 3,416
Likes: 0
Received 3 Likes on 3 Posts
Default
Originally Posted by dodgeman97
so having one O2 sensor in the cat is ok? there are two types of O2s one with a 12" pigtail and an 18", which one do i use?
Yes it's okay. Take out the O2 sensor that your replacing and measure it to find out which one you need. When in doubt, buy the 18".
 
Reply Like
  #7  
Old 01-28-2011, 02:41 AM
CPTAFW163's Avatar
CPTAFW163
CPTAFW163 is offline
Champion
Join Date: Jun 2004
Location: Ft Campbell, KY/TN
Posts: 2,811
Likes: 0
Received 2 Likes on 2 Posts
Default
take it out, bring it to the shop and get an exact one.

My Cali 2001 has 4 O2 sensors. 2 pre and 2 post cat for each side.

Technically, I have 5 O2 sensors....I have a Wideband AF gauge
 
Reply Like
Back to Subforum
2nd Gen Ram Tech
View Next Unread
Which Engine Choice for Project




Advanced Search
Quick Reply: O2 sensor, how many?


Reply Closed Thread Share
Forum Jump

All times are GMT -4. The time now is 12:24 PM.