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Home >> Toyota >> 2007 >> Tundra Base, 4.0 U >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (1GR-FE) - System Testing, On-Vehicle Inspection, Removal, Inspection & Installation >> Air Fuel Ratio Sensor >> Installation

Air Fuel Ratio Sensor: Installation

  1. INSTALL AIR FUEL RATIO SENSOR (for Bank 1 Sensor 1) 
    1. Using SST, install the sensor.

      SST 09224-00010 

      Torque: 

      without SST 

      44 N*m (449 kgf*cm, 32 ft.*lbf) 

      with SST 

      40 N*m (408 kgf*cm, 30 ft.*lbf) 

      HINT:

      • Use a torque wrench with a fulcrum length of 30 cm (11.8 in.). If using a torque wrench with a length that is not 30 cm (11.8 in.), calculate the torque specification for the torque wrench and SST based on the "without SST" torque specification (see PRECAUTION ).
      • Make sure SST and wrench are connected in a straight line.
        Fig 1: Removal/Installation Of Air Fuel Ratio Sensor (For Bank 1 Sensor 1)
        G05149620Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSTALL AIR FUEL RATIO SENSOR (for Bank 2 Sensor 1) 
    1. Using SST, install the sensor.

      SST 09224-00010 

      Torque: 

      without SST 

      44 N*m (449 kgf*cm, 32 ft.*lbf) 

      with SST 

      40 N*m (408 kgf*cm, 30 ft.*lbf) 

      HINT:

      • Use a torque wrench with a fulcrum length of 30 cm (11.8 in.). If using a torque wrench with a length that is not 30 cm (11.8 in.), calculate the torque specification for the torque wrench and SST based on the "without SST" torque specification (see PRECAUTION ).
      • Make sure SST and wrench are connected in a straight line.
        Fig 2: Removal/Installation Of Air Fuel Ratio Sensor (For Bank 2 Sensor 1)
        G05149621Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSTALL FRONT EXHAUST PIPE ASSEMBLY 
    1. Install a new gasket and the exhaust pipe to the exhaust manifold RH with 3 new nuts.

      Torque: 54 N*m (551 kgf*cm, 40 ft.*lbf) 

    2. Install a new gasket and the exhaust pipe to the center exhaust pipe with the 2 bolts.

      Torque: 48 N*m (489 kgf*cm, 35 ft.*lbf) 

    3. Connect the air fuel ratio sensor connector.
    4. Connect the heated oxygen sensor connector and 2 clamps.
  4. INSTALL FRONT NO. 2 EXHAUST PIPE ASSEMBLY (except Regular Cab Standard Deck) 
    1. Connect the front No. 2 exhaust pipe to the exhaust pipe support.
    2. Install a new gasket and the front No. 2 exhaust pipe to the exhaust manifold LH with 3 new nuts.

      Torque: 54 N*m (551 kgf*cm, 40 ft.*lbf) 

    3. Install a new gasket and the front No. 2 exhaust pipe to the center exhaust pipe with the 2 bolts.

      Torque: 48 N*m (489 kgf*cm, 35 ft.*lbf) 

    4. Connect the air fuel ratio sensor connector.
    5. Connect the heated oxygen sensor connector.
  5. INSTALL FRONT NO. 2 EXHAUST PIPE ASSEMBLY (for Regular Cab Standard Deck) 
    1. Install a new gasket and the front No. 2 exhaust pipe to the exhaust manifold LH with 3 new nuts.

      Torque: 54 N*m (551 kgf*cm, 40 ft.*lbf) 

    2. Connect the air fuel ratio sensor connector.
    3. Connect the heated oxygen sensor connector and 2 clamps.
  6. INSTALL FRONT NO. 3 EXHAUST PIPE SUB-ASSEMBLY (for Regular Cab Standard Deck) 
    1. Install a new gasket to the front No. 2 exhaust pipe.
    2. Install a new gasket to the front No. 3 exhaust pipe.
    3. Connect the front No. 3 exhaust pipe to the exhaust pipe support.
    4. Install the front No. 3 exhaust pipe with the 4 bolts and 2 new nuts.

      Torque: 48 N*m (489 kgf*cm, 35 ft.*lbf) 

  7. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL 
    NOTE: Some systems need to be initialized after the cable is reconnected (see INITIALIZATION ).
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