Emission Control System - Porsche 928 ST1991 Owner's Manual

Emission control system

In the interest of clean air
Pollution of our environment has become a
problem that 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 developed an emission control
system that controls or reduces those parts
of the emission that can be harmful to our
environment.Your Porsche is equipped with
such a system.
Porsche warrants the Emission Control Sys-
tem in your new car under the terms and con-
ditions set forth in the Warranty & Mainte-
nance booklet.
You, as the owner of the vehicle, have the re-
sponsibility to provide regular maintenance
service for the vehicle and to keep a record
of all maintenance work performed. To facili-
tate record keeping, have the service per-
formed by authorized Porsche dealers. They
have Porsche trained mechanics and special
tools to provide fast, efficient service.
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To assure efficient operation of the Emis-
sion Control System:
• Have your vehicle maintained properly
and in accordance with the recom-
mendations described in your War-
ranty & Maintenance booklet. Lack of
proper maintenance, as well as impro-
per use of the vehicle, will impair the
function of the emission control sys-
tem and could lead to damage.
• Do not alter or remove any component
of the emission control system unless
approved by the manufacturer.
• Do not alter or remove any device,
such as heat shields, switches, igni-
tion wires, valves, etc., which are de-
signed to protect your vehicle's emis-
sion control system.
• Do not continue to operate your vehi-
cle if you detect engine misfire or other
unusual operating conditions.
Starting
• Do not leave vehicle engine idling unat-
tended after starting. If warning lights
should come on to indicate improper
operation, they would go unheeded.
Extended idling also produces heat,
which could result in overheating or
other damage to the vehicle or other
property.
Parking
• As with any vehicle, do not park or op-
erate your vehicle in areas where com-
bustible materials, such as dry grass
or leaves, can come into contact with
a hot exhaust system.
Undercoating
• Do not apply additional undercoating
or rustproofing on or near the exhaust
manifold, exhaust pipes, catalytic con-
verter or heat shields. During driving
the substance used for undercoating
could overheat and cause a fire.