Porsche 928 1979 Owner's Manual page 71

An Important Word of Caution
on the Emission Control System
in Your Car
Your car is equipped with an Emission C o n -
trol System. The major components of this
system are catalytic converter, secondary air
injection, and EGR (Exhaust Gas Recircula-
tion).
These components are designed
carbon monoxide and hydrocarbons in the
exhaust gas. Normal operating temperature
of the exhaust system will not cause
heat related problems if you maintain and
use your vehicle properly.
However, lack of proper maintenance, mal-
adjustment of the fuel system or ignition
timing, as well as improper use of the ve-
hicle may cause the exhaust system to ex-
ceed its normal operating temperature.
Overheating may result in severe damage to
the catalytic converter, and under certain
conditions may also damage
ponents of your car.
Therefore:
• Have your car maintained
accordance with the service recommen-
dations of the Warranty & Maintenance
booklet.
70
• Do not alter or remove any component of
the Emission Control System unless ap-
proved by the manufacturer.
• Do not alter or remove any device, such
as heat shields, switches, valves, which
are designed to protect your car and the
environment against high exhaust system
temperatures.
• Do not continue to operate your vehicle if
to burn
you detect engine misfire or other unusual
operating conditions.
• Do not park your car over combustible
any
material, including grass or leaves, which
may come into contact with the hot ex-
haust system.
Catalytic Converter
Immediate damage to the catalytic converter
will result if you turn the ignition off while
your car is moving, or if you try to push-
start the car,
tions unburned fuel can reach the catalytic
other c o m - converter.
Undercoating
If additional undercoating is used, it must
not be applied in the areas of the exhaust
manifold, exhaust
properly in
During driving
undercoating could overheat and cause
fire.
because under these condi-
pipes or heat shields.
the substance used for
Emission Control System
In the interest of clean air
Pollution of our environment is of increasing
concern to all of us. We urge you to join us
in our efforts for cleaner air in controlling
the pollutants emitted from the automobile.
Porsche has long recognized
bilities not only toward its customers but
also toward the public in general. We have
developed an emission control system that
controls or reduces those parts of the emis-
sion that can be harmful to our environment.
Your Porsche is equipped with such a sys-
tem. On the following pages we explain how
the Porsche emission control system works,
and what you can do to keep it in working
order.
Your new car is warranted under the terms
and conditions set forth in the Warranty &
Maintenance booklet.
Y o u , as the owner of the vehicle, have the
responsibility to provide regular maintenance
service for the vehicle and to keep a record
of all maintenance w o r k performed. To facil-
itate record keeping, have the service per-
formed by authorized Porsche dealers. They
have Porsche trained mechanics and special
a
tools to provide fast, efficient service.
its responsi-