Honda Accord: Component Location Index
Eighth generation (2008–2012) / Honda Accord MK8 2008-2012 Service Manual / Fuel and Emissions / Catalytic Converter System / Component Location Index

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 ...
See also:
Carbon Monoxide Hazard
Your vehicle’s exhaust contains
carbon monoxide gas. Carbon
monoxide should not enter the
vehicle in normal driving if you
maintain your vehicle properly and
follow the information on this ...
Symptom Troubleshooting Index
...
Vehicle Identification Number
Manufacturer, Make, and Type of Vehicle
1HG; Honda of America Mfg., Inc.
Honda passenger vehicle
Line, Body, and Engine Type
CS1: Accord Coupe/K24Z3
Body Type and Transmission Type
1: 2-door ...
