My 97 2.5l has 2. 1 right below the header and another right after the cat.
in a 94 though there is only one.
Two, one before the cat and one after.
2
The 2001 Jeep Wrangler Sahara typically has four oxygen sensors: two upstream (pre-catalytic converter) and two downstream (post-catalytic converter). The upstream sensors are located in the exhaust manifold, while the downstream sensors are positioned after the catalytic converter in the exhaust system. These sensors help monitor the air-fuel mixture and the efficiency of the catalytic converter.
4
Two, one on each side of the catalytic converter.
The Patriot has two oxygen sensors. One before and one after the catalytic converter.
4
Two, one on each side of the catalytic converter
There are two.
It has 4 total.
Only ones that have failed.
The 2013 Jeep Wrangler has 24 valves.