I'm about to install the o2 simulator in my 2000 Maxima (fed), because I'm getting p0430 and before it was p0420, so I'm guessing it's bank 2. Does anyone have a picture or schematic of where it's located?

 

I believe bank 2 is towards the front manifold.

 

yea i think people its on the front exhaust manifold
look right behind your radiator and you should see it

 

I measured the voltages and resistances in both red and white harness, and the red one has wrong resistance. Then I looked at the schematic again and it says that 2000 fed maximas don't have rear o2 sensor B2, but mine is fed spec and it looks like it does have one - red harness and connector has to go somewhere, right? I'm confused.... Can any of you clarify that? I'm only throwing p0430 now and need to know where to connect o2 sim to get rid of the code.

 

Got it, CEL gone right after install. For those of you with 2000 models and p0430 code, it's the connector with Red harness (2nd plug from the left). Connect black to black, red to red/yellow, and white to white going away from the plug. Installation took 10 minutes.

 

I had the P0420 code. Code came up twice after resetting. Took a trip to the dealer and got the ECU reprogrammed. Car performs alot better since upgrade.

 

Here is a diagram:

 

Anyone Know what colors Are signal, heater, positive, negatve.. For S2 B1.. Just thought i would try this before i got under the car to hook my o2 sim up..

 

I don't think you need to get under the car to hook up your o2 simulator. Check this out:
http://maxima.theowensfamily.com/tsb/NTB02-051a.pdf
on page 5 (bottom diagram), if you're refering to H02S02-B1 , then the harness going down from the plug should be white. The cable colors coming up from the plug should be black (ground), red/yellow (12V), white (signal), and pink/black (not sure what this one is for... heater?). That's where you connect your o2 simulator.

 

Hmm i Dont have A white plug up front.. Mine has a grommet that i have to pull out to access the plug under the drivers seat.. that ones white..