Three-Way Catalytic Converters - Lexus 2003 SC430 Owner's Manual

STARTING AND DRIVING
THREE–WAY CATALYTIC
CONVERTERS
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Three–way catalytic converters are emission control
devices installed in the exhaust system.
The purpose is to reduce pollutants in the exhaust gas.
CAUTION
D Keep people and combustible materials away from
the exhaust pipe while the engine is running. The
exhaust gas is very hot.
D Do not drive, idle or park your vehicle over anything
that might burn easily such as grass, leaves, paper or
rags.
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NOTICE
A large amount of unburned gases flowing into the
three–way catalytic converter may cause it to overheat
and create a fire hazard. To prevent this and other
damage, observe the following precautions:
D Use only unleaded gasoline.
D Do not drive with an extremely low fuel level; running
out of fuel could cause the engine to misfire, creating
an excessive load on the three–way catalytic
converter.
D Do not allow the engine to run at idle speed for more
than 20 minutes.
D Avoid racing the engine.
D Do not push–start or pull–start your vehicle.
D Do not turn off the ignition while the vehicle is
moving.
D Keep
your engine in good
Malfunctions in the engine electrical system,
electronic ignition system or fuel system could cause
an extremely high three–way catalytic converter
temperature.
running order.