Hi, could you please tell me Where is the af sensor is located on my 1.8- 04 nissan sentra? my trouble code is p1273, could you also tell how to replace it? and what it will cost to buy the part, thank you so much for your time i appreciate it.
P1273 NISSAN - Air Fuel Ratio Sensor 1 Lean Shift Monitoring Bank 1
Read more: http://engine-codes.com/p1273_nissan.html
The sensor is in front of the radiator, behind the manifold cover. To replaced the sensor just remove the cover, then use a 22 mm wrench and remove the old sensor and install the new. The price varies, call you local parts store or your nearest Nissan dealer for parts.