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Topic Review (Newest First)
01-07-2012 02:27 PM
Originally Posted by Radioman
Front to rear: maniford (connected to the engine), catalytic converter, and finally the muffler
Thanks! That was pretty much exactly the type of description I needed. I'll give it a shot.
01-07-2012 02:25 PM
Radioman Front to rear: maniford (connected to the engine), catalytic converter, and finally the muffler
01-07-2012 02:07 PM
jeepercowboy I don't have much experience on exhaust systems as bad as that sounds. Is the manifold the big unit just past the muffler upstream?
01-07-2012 02:00 PM
wwch99tj Upstream o2 sensor is just after the manifold before the catalytic converter
01-07-2012 01:53 PM
O2 Sensor. HELP!

So I picked up a new o2 sensor. I crawled under my TJ and I see one sensor directly in front of the muffler. However I see nothing to the rear of the muffler. So would this be the downstream sensor? I need to replace the upstream one.

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