Honda Accord: Under-floorTWC Removal/Installation - Catalytic Converter System - Fuel and Emissions - Honda Accord MK8 2008-2012 Service ManualHonda Accord: 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).


3. Remove the under-floor TWC (B).

4. Install the parts in the reverse order of removal with new gaskets (C) and new self-locking nuts (D).

    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). 5. Lower the vehicle. 6. Remove th ...

    PCV System
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    Synchro Sleeve and Hub Inspection and Reassembly
    1. Inspect the gear teeth on all synchro hubs and synchro sleeves for wear (rounded off corners). 2. Install each synchro hub (A) in its mating synchro sleeve (B), and check for free movement. Ma ...

    Mode Control Motor Test
    NOTE: Before testing the motor, check for HVAC DTCs (see page 21-101). 1. Disconnect the 7P connector from the mode control motor. Incorrectly applying power and ground to the mode control mo ...

    Outside Air Temperature Sensor Test
    NOTE: Before testing the sensor, check for HVAC DTCs (see page 21-101):. 1. Remove the outside air temperature sensor (seepage' 21-185). 2. Dip the sensor in ice water, and measure the resist ...