Honda 2001 Passport, Owner'S Manual, Page: 176 / 317

Three-Way Catalytic Converter
The three-way catalytic converter
is an emissions control device
added to the exhaust system to
reduce exhaust gas pollutants. The
converter contains a ceramic
material coated with noble metal
catalysts. To prevent
contamination of the catalysts,
unleaded gasoline must be used.
Unleaded gasoline also reduces
combustion chamber deposits and
exhaust system corrosion.
The three-way catalytic converter
requires the use of unleaded
gasoline. Use of leaded gasoline
will cause the converter to lose its
effectiveness.
To Help Prevent Damage
1. Keep your engine properly
maintained. Engine
malfunctions involving the
electrical, electronic fuel
injection or ignition systems
may result in unusually high
converter and exhaust system
temperatures. Do not keep
driving your vehicle if you
detect engine misfire,
noticeable loss of performance,
or other unusual operating
conditions. Have it serviced
promptly. A properly
maintained engine will
minimize malfunctions that
could damage the converter. It
will also help provide good
emissions control and fuel
economy. (See the
Maintenance Schedule on page
204 for information on
inspecting and maintaining the
engine, exhaust system and
other components.)
2. Do not push or tow your
vehicle to start it. This could
damage the converter.
3. Do not park your vehicle over
high grass, dry leaves or other
combustible materials. The
catalytic converter gets very
hot and could set fire to these
materials.
Driving Tips