O2 Sensors; Circonia, Titania, Titania with heater, ZIfrconia Pre & Post CAT, Bo

How do I know one from another? I have no clue and no idea how to identify them
These are on a Toyota 1995 4Runner with 3VZ-E engine.

Not a word on the FSM on this subject. Youtube goes on and on without clues to help me. All I knew is that there were O2 Sensors. Schrodinger mentions something about two types: 100-900mV; and others from 3V to 3.9 volts ???
Help will be appreciated.

why do you start a whole new topic for your car??? I answered you on you previous topic about this

Because in my opinion this post is something I expected to be general and of interest of many other readers/members without taking it as a specific for my case. I mention my car because
Toyota seemed to be kind of different.
Also because in many other forums if I continue on a thread that was specifically for my car they would be upset and called that hijacking the tread.

Did I violate any of this boards rules?

I appreciated your suggestions before, but I would feel better if your response was a little more on the sides of:
Please do not start a new topic if you re referring to your car that you previously posted. Or even if you referred me to read guidelines for posting which I must admit I was only using my common sense and maybe to my lack of experience and age I do not have much.

Batiscafo wrote: Did I violate any of this boards rules?

Negative, no rules violated. Mostly because we don't have any specific rules pertaining to situations like this. :lol:

In general, it does help to keep discussion of a specific vehicle in a single thread. But, you're asking a more generalized question about O2 identification, using your Toyota as an example. Correct? I don't have an issue that rationale.

check the VECI label under the hood... it should tell you which 02 it is using...

Toyota OE#89465 prefix is for narrowband 02's.

Toyota OE parts site says it used the narrowband 89465-39755.