Honda 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).
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).
10. Remove the converter cover (A).

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:
Input Shaft (Mainshaft) Speed Sensor
Replacement
1. Remove the nut securing the under-hood fuse/relay
box, and swing it out of the way.
2. Remove the intake air duct and the air cleaner
housing.
3. Disconnect the input shaft (mainshaft) spee ...
Change Lever Assembly Disassembly/Reassembly
NOTE: Prior to reassembling, clean all the parts in solvent, dry them, and
apply grease to contact surfaces as shown. Do
not wash the rubber parts with solvent.
...
Your Vehicle’s Safety Features
Your Vehicle’s Safety Features
Your vehicle is equipped with many
features that work together to
protect you and your passengers
during a crash.
Some features do not require any
action o ...