Warm Up TWC Removal And Installation (2014 2015 2016 2017): Removal

Front Bank (Bank 2) 

1. Exhaust Pipe A - Remove

   Remove exhaust pipe A .

2. Front WU-TWC Bracket - Loosen

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

   Loosen the front WU-TWC bracket mounting bolt (A), and remove the front WU-TWC bracket mounting bolt (B).

3. Engine Cover - Remove

   Remove the engine cover .

4. EGR Pipe - Remove

   Remove the EGR pipe .

5. Front A/F Sensor (Sensor 1) - Remove

   Remove the front A/F sensor (Sensor 1) .

6. A/C Condenser Fan Shroud Assembly - Remove

   Remove A/C condenser fan shroud assembly .

7. Front WU-TWC - Remove

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

   1. Remove the spark plug heat insulator (A). 2. Disconnect the No. 5 cylinder ignition coil connector (B), then remove the No. 5 cylinder ignition coil (C). 3. Carefully remove the front WU-TWC (D) assembly.

8. WU-TWC Cover - Remove

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

   Remove the WU-TWC covers (A) from the front WU-TWC.

Rear Bank (Bank 1) 

1. Exhaust Pipe A - Remove

   Remove exhaust pipe A .

2. Rear Secondary HO2S (Sensor 2) - Remove

   Remove rear secondary HO2S (Sensor 2) .

3. Rear WU-TWC Bracket - Loosen

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

   Loosen the rear WU-TWC bracket mounting bolt (A), and remove the rear WU-TWC bracket mounting bolt (B).

4. CKP Sensor Cover and Bracket - Remove

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

   1. Remove the CKP sensor cover  2. Disconnect the CKP sensor connector (A). 3. Remove the bracket (B).

5. Front Strut Brace - Remove

   Remove the front strut brace .

6. Engine Cover - Remove

   Remove the engine cover .

7. Left Cabin Wire Harness Connector - Disconnect

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

   Disconnect the left cabin wire harness connectors (A).

8. Rear A/F Sensor (Sensor 1) - Remove

   Remove the rear A/F sensor (Sensor 1) .

9. Power Steering Heat Shield - Remove

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

   Remove the power steering heat shield (A).

10. Rear WU-TWC - Remove

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

    1. Disconnect the following connectors. EVAP canister purge valve connector (A) Rocker arm oil pressure switch B (Bank 1) connector (B) Rocker arm oil control solenoid B (Bank 1) connector (C) Rocker arm oil pressure switch A (Bank 1) connector (D) Rocker arm oil control solenoid A (Bank 1) connector (E) Transmission fluid pressure switch D connector (F) Transmission fluid pressure switch A connector (G)

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

    2. Remove the spark plug heat shield (A). 3. Disconnect the ignition coil connectors (B), then remove the No. 1 cylinder ignition coil (C) and the No. 2 cylinder ignition coil (D). 4. Remove the bolts (E), then move the harness holder (F) to outside of the vehicle. 5. Carefully remove the rear WU-TWC (G) assembly.

11. WU-TWC Cover - Remove

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

    Remove the WU-TWC covers (A) from the front WU-TWC.