Question

What is the engine code P0160 on my 2001 Infiniti QX4?

Answer 1

You must replace the O2 Sensor Bank 2 Sensor 2 to fix the problem.

Oxygen (O2) Sensor Location Infiniti QX4: https://infinitihelp.com/diy/qx4/projects/infiniti_qx4_o2_sensor_location.php

P0160 Infiniti - O2 Sensor Circuit No Activity Detected Bank 2 Sensor 2
Read more: https://www.autocodes.com/p0160_infiniti.html