Xterra XE 4WD V6-3.3L SC (VG33ER) (2002)
Oxygen Sensor: Locations
IACV-AAC Valve / Heated Oxygen Sensor 1 (Front) (Bank 1) / Knock Sensor / Fuel Pressure Regulator / Heated Oxygen Sensor 1 (Front) (Bank 2)
Heated Oxygen Sensor 2 (Rear) (Bank 2) / A/T Oil Pan / Heated Oxygen Sensor 2 (Rear) (Bank 2)
Heated Oxygen Sensor (Rear) (Bank 2) / Crankshaft Position Sensor (OBD) / Transmission