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Exhaust System Component

Fig 1: Locating Air Fuel Ratio Sensors 1 And Heated Oxygen Sensors 2
G08255537Courtesy of NISSAN NORTH AMERICA, INC.
No. Component Function
  A/F sensor 1 (bank 1) AIR FUEL RATIO SENSOR 1 
  A/F sensor 1 (bank 2)
  Heated oxygen sensor 2 (bank 2) HEATED OXYGEN SENSOR 2 
  Heated oxygen sensor 2 (bank 1)