LEMON Manuals: Even more car manuals for everyone
Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 813 (Engine Mechanical) >> Exhaust Manifold And Three Way Catalyst >> Removal and Installation >> Removal (Left Bank)

Removal (Left Bank)

WARNING: This page is about a different car, the 2007 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove air cleaner case and air duct. Refer to "REMOVAL ".
  2. Remove engine undercover with power tool.
  3. Disconnect harness connector and remove heated oxygen sensor 2 on both banks using Tool.

    Tool number : KV10114400 (J-38365) 

    CAUTION:
    • Be careful not to damage heated oxygen sensor 2.
    • Discard any heated oxygen sensor 2 which has been dropped from a heught of more than 0.5 m (19.70 in) onto a hard surface such as a concrete floor; replace with a new sensor.
    Fig 1: Identifying Heated Oxygen Sensor
    G04893993Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Remove center exhaust tube, main muffler and left front exhaust tube. Refer to "REMOVAL ".
  5. Remove exhaust manifold cover (left bank).
  6. Disconnect harness connector and remove air fuel ratio sensor 1 (left bank) using Tool.

    Tool number : KV991J0050 (J-44626) 

    CAUTION:
    • Be careful not to damage air fuel ratio sensor 1.
    • Discard any air fuel ratio sensor 1 which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor; replace with a new sensor.
    Fig 2: Identifying Air Fuel Ratio Sensor (Left Bank)
    G04893994Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Remove three way catalyst (left bank).
  8. Loosen nuts with power tool in reverse order as shown below.
    NOTE: Disregard the numerical order No. 7 and 8 in removal.
    Fig 3: Exhaust Manifold Nuts (With Tightening Sequence)
    G04893995Courtesy of NISSAN MOTOR CO., U.S.A.
  9. Remove gaskets.
    CAUTION: Cover engine openings to avoid entry of foreign materials.