The three way catalytic converter contains precious metals that serve as catalysts, promoting chemical reactions to convert the exhaust gasses without affecting the metals.
The catalytic converter is referred to as a three-way catalyst, since it acts on HC, CO, and NOx. A replacement unit must be an original Honda part or its equivalent.
The three way catalytic converter must operate at a high temperature for the chemical reactions to take place. It can set on fire any combustible materials that come near it. Park your vehicle away from high grass, dry leaves, or other flammables.

A defective three way catalytic converter contributes to air pollution, and can impair your engine’s performance.
Follow these guidelines to protect your vehicle’s three way catalytic converter.
• Always use unleaded gasoline.
Even a small amount of leaded gasoline can contaminate the catalyst metals, making the three way catalytic converter ineffective.
• Keep the engine well maintained.
• Have your vehicle diagnosed and repaired if it is misfiring, backfiring, stalling, or otherwise not running properly.
Protecting Adults and Teens
Introduction
The following pages provide instructions on how to properly protect the driver,
adult passengers, and teenage children who are large enough and mature enough to
drive or ride in the ...
How to Enter Information
You can enter information (e.g., city names, street names, personal names,
and business names comprising letters, numbers, and symbols)
when prompted on input screens by two different methods. ...
During Route Guidance
During route guidance, route information is displayed on the map/guidance
screen.
Press the MAP/GUIDE button to display the guidance screen. ...