hey so ive the bank 1 and 2 cat codes popping up so im going to replace my rear o2 sensors cause ive read that's what I need to do, I was wondering if anyone has the denso number or whatever company makes them for the 2007/2008 Z's cause ive came up with a whole lot of nothing, I think it could possibly be DEN 234-4380 but im not 100% sure when I looked it up on my system I came up with a Nissan number but I don't want to spend 400 on something that still might not help with my problem, and to make matters worse I procrastinated till the last minute to fix the issue since my state expires next month (4 days)

 

#226AO-ET000
$171.76 @ Courtesy Nissan

 

Yeah I work at a Nissan dealer, Ive gotten that number what im asking for is the Denso or whoever makes those sensors for Nissan if someone has the denso number on them so I can order them directly from them and not pay the Nissan tax on them haha

 

I have heard many people say aftermarkets don't always work. Mine are still original.

 

AHH ok ok, well the thing is the original guy who tried to install my HFC's left the o2 sensors in them when he tried to bust them loose and that damaged the sensors I believe.

 

Stick with the OEMs. If you can do a live Lambda reading (just look it up on YouTube), that'll give you a good idea if it's your O2 Sensors or if you need new cats (which is another very common issue with these cars).