I have a 2k SE. At 45k I got the dreaded P1320 code, had my buddy read & clear it. 2 weeks later, it's back, had my bud clear it. Same day I get and O2 sensor error, he clears it again. Same day, same code.

So I start running high octane fuel (93) and plan on changing coils after the first of the year. Approx 2 weeks after running 93 octane in my car, the O2 code clears & the P1320 cade hasn't returned. I'm keeping my fingers crossed, but so far, so good.

Maybe it'll work for you.

Happy New Year.

 

What octane were you using before? There is a thread asking about running 87 octane in this forum.

 

What was the number of the o2 sensor code that you pulled?

 

charliekilo3, I was using regular unleaded (87 OCTANE).

SterlingMist00, I don't recall the code specifically, but it was my O2 sensor, bank 2.

 

Maxima requires premium. 87 will result in improper firing (pinging or detonation.) Either way, you will run into emission troubles. You should always run 91-93 octane.