I think my o2 sensor is bad

[Krylonking]

i have been having serious problems with my car running rich , it was so rich it was undrivable it just bogged down and died , i disconected the 02 sensor and it runs alot better , bogs slightly but i could actually take it down the street once it got up in rpms it came alive , it still a slug down low so i think a new o2 sensor might solve that , anyone know where i can get one . or if any other nissan uses the same one

[RMiller]

Your plugs are black. That's weird it runs better w/o the o2 sensor plugged in. I assume your sensor is a 3 wire. You can buy a Bosche universal 3 wire. Connect signal to signal, and the other two aren't polar so whichever to whichever. It's about $50. You can probably also use a 300zx sensor. I'm not sure on this because I have a CA, but as long as it's a 3 wire you'll be fine. If 1 wire, buy a 1 wire universal.

I unplugged my o2 sensor and I could accelerate a little, then it felt like it had zero power, because it was running super rich. Yeah my o2 sensor was black after about 1 minute of driving. Totally black. Plugged in a new Bosche universal and the car ran perfect. Make sure you clean your plugs.