Honda Accord: Warm Up TWC Removal/Installation - Catalytic Converter System - Fuel and Emissions - Honda Accord MK8 2008-2012 Service ManualHonda Accord: Warm Up TWC Removal/Installation

1. Raise the vehicle on a lift.

2. Remove the secondary H02S (Sensor 2) (see page 11-197).

3. Remove the bolts (A).

4. Remove the WU-TWC bracket (B).


4. Remove the WU-TWC bracket (B).

5. Lower the vehicle.

6. Remove the frame brace (see page 20-306).

7. Remove the A/F sensor (Sensor 1) (see page 11-197).

8. Remove the upper converter cover (A).

9. Remove the WU-TWC (B) and the gaskets (C).


9. Remove the WU-TWC (B) and the gaskets (C).

10. Remove the converter cover (A).

11. Install the parts in the reverse order of removal with


11. Install the parts in the reverse order of removal with new gaskets.

    DTC Troubleshooting
    DTC P0420: Catalyst System Efficiency Below Threshold NOTE: - Before you troubleshoot, record all freeze data and any on-board snapshot, and review the general troubleshooting information (see pa ...

    Under-floorTWC Removal/Installation
    1. Raise the vehicle on a lift. 2. Remove the exhaust pipe hangers (A). 3. Remove the under-floor TWC (B). 4. Install the parts in the reverse order of removal with new gaskets (C) and new s ...

    See also:

    Owner’s Maintenance Checks
    You should check the following items at the specified intervals. If you are unsure of how to perform any check, turn to the appropriate page listed. Engine oil level Check every time you fi ...

    Stabilizer Link Removal/Installation
    1. Raise and support the vehicle (see page 1 -13). 2. Remove the front wheel. 3. Remove the self-locking nut (A) and the flange nut (B) while holding the respective joint pin (C) with a hex wr ...

    Navigation Unit Removal/Installation
    NOTE: • Before you replace the navigation unit, back-up the customer data using system diagnostic mode Save Users Memory under the Functional Set up (see page 23-186). • Ifthe navigat ...