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Installation [08/2015 - ]: Procedure

  1. INSTALL AIR FUEL RATIO SENSOR (for Bank 1 Sensor 1) 

    Refer to PROCEDURE - Step 2

  2. INSTALL AIR FUEL RATIO SENSOR (for Bank 2 Sensor 1) 

    Refer to PROCEDURE - Step 1

  3. INSTALL NO. 2 HEATED OXYGEN SENSOR (for Bank 1 Sensor 2) 

    Refer to PROCEDURE - Step 1

  4. INSTALL HEATED OXYGEN SENSOR (for Bank 2 Sensor 2) 

    Refer to PROCEDURE - Step 2

  5. INSTALL FRONT EXHAUST PIPE ASSEMBLY 
    1. Install a new gasket and the front exhaust pipe to the exhaust manifold RH with 3 new nuts.

      Torque: 54 N*m (554 kgf*cm, 40 ft.*lbf) 

    2. Connect the air fuel ratio sensor connector.
    3. Connect the heated oxygen sensor connector.
    4. Attach the heated oxygen sensor wire harness clamp.
  6. INSTALL FRONT NO. 2 EXHAUST PIPE ASSEMBLY 
    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 (554 kgf*cm, 40 ft.*lbf) 

    2. Connect the air fuel ratio sensor connector.
    3. Connect the heated oxygen sensor connector.
  7. INSTALL CENTER EXHAUST PIPE ASSEMBLY 
    1. Check the free length.
      GTY146446Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Using a vernier caliper, measure the free length of the compression spring.

        Minimum free length

        43 mm (1.693 in.)

        If the free length is less than the minimum, replace the compression spring.

    2. Install 2 new gaskets to the front exhaust pipe and front No. 2 exhaust pipe.
    3. Install the center exhaust pipe to the 3 exhaust pipe supports, and then install the 4 bolts and 2 compression springs.

      for front exhaust pipe 

      Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf) 

      for front No. 2 exhaust pipe 

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

  8. INSTALL EXHAUST PIPE DAMPER 
    1. Install the exhaust pipe damper to the tailpipe with the 2 bolts.
      GTY577701Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Torque: 19 N*m (194 kgf*cm, 14 ft.*lbf) 

  9. INSTALL TAILPIPE ASSEMBLY 
    1. Install the tailpipe to the 2 exhaust pipe supports.
    2. Install a new gasket to the center exhaust pipe.
    3. Connect the tailpipe to the center exhaust pipe.
    4. Attach a new clamp to the tailpipe and center exhaust pipe. Then install the bolt to the clamp.
      GTY237997Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Torque: 32 N*m (326 kgf*cm, 24 ft.*lbf) 

      HINT: 

      Install the clamp within the angle range shown in the illustration.

  10. INSPECT FOR EXHAUST GAS LEAK 

    See step  13

  11. INSTALL NO. 2 ENGINE UNDER COVER 

    Refer to PROCEDURE - Step 48