Probably a stupid question? but isn't the sensor only located in the exhaust stream upstream of the Cat. Didn't think any were located w/I the cat converter. Measures oxy in the exhaust stream only.

 

One is located in front of the cat and one behind it.

 

Talk to Fastman, he sells something I can't remember what it's called, http://www.thefastman.com. I can't bring it up from the web page. I was going to order one from him a while back when I was getting the o2 sensor code. When I back to using the Mopar sensor problem went away.

 

Why? The factory cat is a high flow cat and really doesn't effect the exhaust that much for every day driving. It also helps with the atmosphere. Even in Texas there's smog in the citys.

Yes there's an o2 box available from Dan.

 

Here's the link to the O2 Simm that does what you're looking for.

http://www.thefastman.com/02Simms.asp

Unfortunately, other than the initial intro page graphic with the TB running, his main site seems to be down right now.

IndyDurango

EDIT: Site links are working now.

 

Thanks for the link.

A few years ago the cat was acting up. It was getting VERY hot and choking out the engine. After hollowing it out that problem went away. Every inspection time I'd just clear the codes to pass.

Right now I'm looking at this option until I get it all reworked and dueled out with stainless headers.