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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    Valve Seat Reconditioning
    1. Inspect the valve stem-to-guide clearance (see page 6-88). If the valve guides are worn, replace them (see page 6-88) before cutting the valve seats. 2. Renew the valve seats in the cylinder h ...

    VSA Modulator-Control Unit Update
    Special Tools Required - Honda diagnostic system (HDS) tablet tester - Honda interface module (HIM) and an iN workstation with the latest HDS software version - HDS pocket tester - GNA-600 and an ...