Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Toyota Tundra 2000-2006 Approved 04-06 techinfo.toyota.com ileaf 06toyrm 06toypdf 06rmsrc 06tundra ec1grfe twccsy repl

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EMISSION CONTROL (1GR-FE)   -   THREE-WAY CATALYTIC CONVERTER (TWC)       EC-13
                                SYSTEM
                                                                           EC0OF-01


                   REPLACEMENT
                   1.    REMOVE HEATED OXYGEN SENSOR (BANK 1)
                   (a)   Disconnect the heated oxygen sensor.
                   (b)   Remove the heated oxygen sensor.




                   2.  SEPARATE EXHAUST CENTER PIPE
                   Remove the 4 bolts and 2 springs from the exhaust center pipe.




          A23248



                   3.    REMOVE RH FRONT EXHAUST PIPE
                   (a)   Remove the 2 nuts and RH front exhaust pipe.
                   (b)   Remove the 2 gaskets from the RH front exhaust pipe.
                   4.    REMOVE HEATED OXYGEN SENSOR
                         (BANK 2 OXYGEN SENSOR)
                   (a)   Disconnect the heated oxygen sensor connector.
                   (b)   Remove the heated oxygen sensor.

          A23247



                   5.  REMOVE LH FRONT EXHAUST PIPE
                   (a) Remove the 2 nuts, exhaust pipe support and LH front ex-
                       haust pipe.
                   (b) Remove the 2 gaskets from the LH front exhaust pipe.
                   6.  REMOVE MANIFOLD STAY
                   Remove the 6 bolts and 2 manifold stays.
                   7.  REMOVE A/F SENSOR (BANK 1)
                   (a) Disconnect the A/F sensor connector.
          A23246   (b) Remove the A/F sensor.

                   8.  REMOVE EXHAUST MANIFOLD RH
                   Remove the 6 nuts, exhaust manifold RH and gasket.
                   9.  REMOVE A/F SENSOR (BANK 2)
                   (a) Disconnect the A/F sensor connector.
                   (b) Remove the A/F sensor.




          A23251
EC-14             EMISSION CONTROL (1GR-FE)   -   THREE-WAY CATALYTIC CONVERTER (TWC)
                                                  SYSTEM

                                     10. REMOVE EXHAUST MANIFOLD LH
                                     Remove the 6 nuts, exhaust manifold LH and gasket.




                            A23252



                                     11.  INSTALL EXHAUST MANIFOLD RH
                                     (a)  Set a new gasket to the RH cylinder head with the oval
                                          shape facing forward.
                                     NOTICE:
 Oval Shape
                                     Be careful of the installation direction.



                      Forward
                            A22906



                                     (b)   Install the exhaust manifold with the 6 nuts. Tighten the
                                           nuts uniformly in several steps.
                                           Torque: 21 Nm (214 kgfcm, 15 ftlbf)
                                     12.   INSTALL A/F SENSOR (BANK 1)
                                     (a)   Install the A/F sensor.
                                           Torque: 44 N

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