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:

    Audio-HVAC Subdisplay Unit Removal/Installation
    With Navigation NOTE: • Put on gloves to protect your hands. • Take care not to scratch the dashboard. 1. Remove the dashboard center vent (see page 20-178). 2. Remove the screws, ...

    ACC (Adaptive Cruise Control)*
    Maintains a constant vehicle speed and a safe distance between your vehicle and the vehicle ahead of you without having to keep your foot on the brake pedal or accelerator. WARNING Improper ...

    Compatible iPod®, iPhone®, and USB Flash Drives
    • iPod® and iPhone® Model Compatibility This system may not work with all software versions of these devices. • USB Flash Drives • Use a recommended USB flash drive of 256 MB or higher. ...