Thanks Guys,
Sorry for being a bit of a dummy on this. I know my way around vehicles pretty good, but some of this computer stuff is less straight forward.
I'm thinking my sensor should work at idle - it is a 3-wire (heated, I'm guessing) sensor. And I don't know if my '92 pathfinder has a engine light - never seen it.
Jadcock - your link to the O2tapper didn't work for me.
So, could someone please give me some detailed instructions here (aka: hold my hand). Including explanations of the acronyms (sp) such as PCM, etc. and where to find these things.
Sorry for all the questions - Thanks again for all your help.
