Honda 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).
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
...
See also:
Using the Paddle Shifters in the D position (D-Paddle Shift Mode)
V6 models only
When you are driving in theD
position, you can shift the
transmission up or down manually
with the paddle shifters.
To shift up or down, use the +
(right) or - (left) paddl ...
Drive Belt Auto-tensioner
Inspection
Special Tools Required
Belt Tension Release Tool Snap-on YA9317 or
equivalent, commercially available
1. Turn the ignition switch to ON (II), and make sure to
turn the A/C switch OFF. Turn the ign ...
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 ...