I've had an on again, off again SES light. Shop told me the error code (PO139) is related to the oxygen sensor. I've got 48k on the car, 4 years old.

Shop told me roughly $500 to replace, but that I should check with the dealer to see if it's covered under smog warranty. They are a reputable shop so I know they are not trying to screw me. But aren't those sensors simple to replace? Is there a write up on it anywhere?

Anyone get this covered under warranty beyond 36k miles?

Thanks,
kevin

PS.....reading the sticky's as well on SES stuff. Sorry to have posted too hastily. But more info from anyone having had the same issue so soon (48k miles) would be good.

 

i think o2 sensors are covered under the 8/80k emissions warranty

 

Don't think so... only the cats and ECU reprogramming is covered till 8/80k.

http://www.nissanusa.com/m/cma/i/200/2003_Wrnty.pdf

 

I don't believe there is a P0137 code... but here is a TSB for O2 sensors. IMO its pretty easy to do it yourself (once you get the right code and find out which sensor it is)... sensors are about $150 from most Nissan dealerships.

http://maxima.theowensfamily.com/tsb/NTB02-051a.pdf