Y33 O2 sensor questions...Please help!

[NightRiderQ45]

Hey. My service engine light came on yesterday and I took it to the local Autozone to have a diagnostic done to it and the codes came up that I needed a O2 sensor. What is confusing is that it says that the oxygen sensor 2 in bank 2 is too high for current operating conditions and two slow during testing. I don't know what that means. By looking at the print out, my car has 3 O2 sensors. It says that oxygen sensor 1 is before catalytic and oxygen sensor 2 & 3 are downstream in or after catalytic converter. Since I will have my car suspended, do you think that i should go ahead and change 2 and 3 or just change the bad sensor 2?

I've been reading on some sites that you should get rid of the green antifreeze coolant and switch to the red stuff. Is that true? I've purchased my car in 1/05 and I haven't flushed it out yet but plan on it.

[maxnix]

You don't have an FSM.

Sensor 2 Bank 2 is the one after the passenger catalyst.

OAT is superior, but use only distilled water to mix and sluch the original completely before converting.

[NightRiderQ45]

You don't have an FSM.

Sensor 2 Bank 2 is the one after the passenger catalyst.

OAT is superior, but use only distilled water to mix and sluch the original completely before converting.

I'm sorry, but since I'm new here, what does FSM mean because I doubt that I have that. Where can I find it? Thanks!!

[bullittandy]

You actually have 4 O2 sensors, two before and two after the cats. The two after are very easy to change and the two beofre are more difficult but not impossible. I did a writeup on changing them, search the archived info and you'll find it.

Good Luck!

[maxnix]

I'm sorry, but since I'm new here, what does FSM mean because I doubt that I have that. Where can I find it? Thanks!!

Factory Service Manual.

Search http://www.phatg20.net or get the TSB also at http://www.nissan-techinfo.com/infiniti/ for a one day subscription.