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Exhaust System Component

Fig 1: Air Fuel Ratio Sensor and Oxygen Sensor Location
G09159909Courtesy of NISSAN NORTH AMERICA, INC.
No. Component Function
(1) A/F sensor 1 (bank 1) "AIR FUEL RATIO SENSOR 1 "
(2) A/F sensor 1 (bank 2)
(3) Heated oxygen sensor 2 (bank 2) "HEATED OXYGEN SENSOR 2 "
(4) Heated oxygen sensor 2 (bank 1)