STARTING AND DRIVING
295
THREE-WAY CATALYTIC
CONVERTERS
31L353a
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.
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 running order.
Malfunctions in the engine electrical system,
electronic ignition system or fuel system could cause
an extremely high three-way catalytic converter
temperature.
D
If the engine becomes difficult to start or stalls
frequently, take your vehicle in for a check-up as
soon as possible. Remember, your Lexus dealer
knows your vehicle and its three-way catalytic
converter system best.
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