I've posted this topic before but didn't get any helpful response.

I have a 1999 Max (cali spec)
I got the code P0133.
I went to oxygensensors.com and they have three different sections:

1) Sensor located in front manifold/exhaust pipe before catalyst on left side

2) Sensor located in front manifold/exhaust pipe before catalyst on right side

3) Downstream sensor, after catalyst

Which one should I get?
I need to buy it ASAP so that i can take it to the Nissan Dealer to have it installed.
Unless someone who is experienced is willing to install it for me for some $$.

 

use this thread ---> http://forums.maxima.org/showthread.php?t=104931 to figure out the code. I would install it yourself. It's not that hard. Just takes time. Good luck.


*edit* I just tried running your code and it came back undefined. why do you think it's your o2 sensor?

 

I went to autozone and they gave me the code. I'll go back and find out the part number.

As for the other method to find the code (counting the blinks), i tried it to my dad's '96 GLE and it gave me the wrong codes. So therefore, i trust the autozone's equipment.