P2a03 Infiniti -

Question

My Infiniti G35 Sedan 2007 model has shown Service Engine Soon indication during running. When inspected, computer indicate the code P2A03.
Let me know, which sensor I need to replace O2 sensor or Air Fuel Sensor.

Answer 1

https://www.autocodes.com/p2a03_infiniti.html

 

Bank 2 sensor 1 is on the driver side on the exhaust manifold