Catalytic Converter Removal

Under-Floor TWC*1

Fig 1: Catalytic Converter Replacement Components With Torque Specifications

Courtesy of HONDA, U.S.A., INC.

	Detailed information, notes and precautions
	Torque: N.m (kgf.m, lbf.ft)
	Replace

WU-TWC 

1. A/F Sensor (Sensor 1) - Remove
2. Front Engine Undercover Lid - Remove
3. Exhaust Chamber Cover - Remove
4. TWC Bracket - Remove
   Fig 2: TWC Bracket Bolts Tightening Sequence

   Courtesy of HONDA, U.S.A., INC.

   Note for installation 

   • Before installing the TWC brackets (A), confirm the bolts and nuts fixing the TWC to the cylinder head are tightened to the specified torque.
   • Tighten the TWC bracket mounting bolts in the numbered sequence shown.
5. TWC Assembly - Remove
6. Under-Floor TWC - Move (Only for installation)

   Courtesy of HONDA, U.S.A., INC.

   1. Move the under-floor TWC leftward and tie it up with string so as not to allow it to touch the WU-TWC (A). NOTE:  When the under-floor TWC is high temperature, be careful for thermal effect on the material and work. If there is not enough clearance between the WU-TWC and the under-floor TWC, remove rubbers mounts as necessary.

7. TWC Cover - Remove (if necessary)
8. All Removed Parts - Install

   1. Install the parts in the reverse order of removal with new gaskets and new self-locking nuts.

   Under-Floor TWC 

9. Engine Undercover - Remove
10. Secondary HO2S (Sensor 2) - Remove
11. Under-Floor TWC - Remove
12. All Removed Parts - Install

    1. Install the parts in the reverse order of removal with new gaskets and new self-locking nuts.