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Warm Up TWC Removal/Installation: Front

  1. Remove the engine cover (see step 2 on REMOVAL ).
  2. Remove the condenser fan shroud (see FAN, FAN MOTOR, AND SHROUD REMOVAL AND INSTALLATION ).
  3. Remove the No. 2 ignition coil and the ignition coil heat insulator.
  4. Remove the front A/F sensor (Sensor 1) (see A/F SENSOR REPLACEMENT ) and the front secondary HO2S (Sensor 2) (see SECONDARY HO2S REPLACEMENT )
  5. Remove the exhaust pipe A mounting nuts (front WU-TWC side) (see EXHAUST PIPE AND MUFFLER REPLACEMENT ).
  6. Remove the EGR pipe (see EGR VALVE REPLACEMENT ).
  7. Remove the front WU-TWC bracket, then carefully remove the front WU-TWC.
    Fig 1: Removing Front WU-TWC Bracket With Torque Specifications
    G07354008Courtesy of AMERICAN HONDA MOTOR CO., INC.
  8. Carefully install the front WU-TWC with a new gasket and new self-locking nuts. Tighten the nuts in a crisscross pattern in two or three steps.
  9. Install the parts in the reverse order of removal.
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