Hello All,
I ve been changing everything on my max attempting to get another 100,000 miles out of her. I ma currently at 200,500. Changed sensors relating to DTC codes but I can not find the sensor for P1273 code. (Air Fuel Sensor). All help would be greatly appreciated also any places with good prices too.
Before I get blasted I did check the search icon about the locatoion and how to change before posting.
Thank you,
Blake

 

Bank 1 looks like the firewall side and Bank 2 looks like radiator side -- there's probably 2 sensors in each bank so you'll have to find the right one

http://engine-codes.com/uploads/nissan/NTB04-027a.pdf (page 3)
http://engine-codes.com/uploads/nissan/NTB05-095.pdf

Google "maxima P1273"
http://engine-codes.com/p1273_nissan.html
http://my6thgen.org/f266/p1273-13185/
http://forums.nicoclub.com/codes-127...p-t513863.html

 

Easiest way to remove this sensor is to remove the intake manifold plenum. If you have not replaced spark plugs yet, use this opportunity to change them.