O2 sensor, how many?
Thread Starter
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Registered User
Joined: Jan 2011
Posts: 2
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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...
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...
Champion
Joined: Apr 2007
Posts: 2,570
Likes: 0
if the exhaust is stock, 97 should have two unless california emissions. One right before the cat, and one after the cat.
Champion
Joined: Feb 2009
Posts: 3,416
Likes: 4
From: Bay Area, CA
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
Champion
Joined: Feb 2009
Posts: 3,416
Likes: 4
From: Bay Area, CA
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".
