I went to the stickies and can't get a straight answer. Is it the upstream o2 sensors or the one after the cat. The car runs fine just cel light stays on. I( I have an emission test soon and would like to get this fixed. As common as this problem is someone has to have had this exact problem.Thanks

 

i have the same problem. gotta get it fixed soon. i got two codes for both sensors so ill just have to change both i guess.

 

Also the car is a 2000 model, forgot to mention it.

 

get used to it...... you can fix the sensors but it will come back....

 

I got this code last month and went ahead and bought the O2 simulator (http://www.o2simulator.com/) which kind of fools the ECU that a good sensor is out there -- I have not got the code since installing this hardware. Hope this helps...

 

Since apparently you can't read, UNLESS YOU HAVE A FED SPEC 2000, this TSB is your answer:
http://forums.maxima.org/showpost.ph...8&postcount=25