Warm Up TWC Removal/Installation

NOTE: If the warm up TWC is damaged internally, inspect the under-floor TWC for debris.

Raise the vehicle on a lift.
Remove the bolts (A, B).

Fig 1: Mounting Bolts On Warm Up TWC With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove the cowl cover and the under-cowl panel (see COWL COVER REPLACEMENT ).
Remove the EGR pipe (see EGR PIPE REMOVAL AND INSTALLATION ).
Remove the A/F sensor (Sensor 1) (see A/F SENSOR REPLACEMENT ).
Remove the cover (A).

Fig 2: WU-TWC, Cover, Bolts And Nuts With Torque Specifications
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Remove the bolts (B) and the nuts (C).
Remove the WU-TWC (D).
Install the parts in the reverse order of removal with new gaskets (E).