Catalytic Converter, Engine Exhaust - Opel Astra Owner's Manual

194 Driving and operation
Picture no: 17199t.tif
Catalytic converter,
engine exhaust
Catalytic converter
Some of the harmful substances in the
exhaust, such as carbon monoxide (CO),
hydrocarbons (CH) and nitrous oxides
(NO ), are reduced thanks to the catalytic
x
converter.
High quality fuels other than those listed on
pages 192, 294, 295 (e.g. LRP = Lead
Replacement Petrol or leaded fuel) could
damage the catalytic converter and
components of the electronics.
Caution
Damage to the catalytic converter or the
vehicle may result if the following points
are not observed.
z If the event of misfiring, irregular engine
running, clear loss of engine power or
other uncommon operating faults, have
the cause of the fault remedied
immediately by a workshop. In an
emergency, the vehicle can be driven
briefly at low vehicle and engine speed.
This does not apply when the Electronic
Plus
Stability Program ESP®
comes into action.
z If unburned fuel enters the catalytic
converter of a petrol-engined vehicle,
this may result in overheating and
irreparable damage to the catalytic
converter.
You should therefore avoid
unnecessarily long use of the starter,
running the tank dry and starting the
engine by pushing or towing.
3 3 198
Controlling exhaust emission
Some of the damaging substances in the
exhaust such as carbon monoxide (CO),
hydrocarbons (HC) and nitrous oxides
(NO ) are reduced to a minimum by
x
making structural changes – mainly in the
injection system and the ignition system in
conjunction with the catalytic converter.
Picture no: 17004t.tif