Catalytic Converter, Engine Emissions - Vauxhall 2009 Tigra Owner's Manual

112 Driving and Operation
Catalytic converter,
engine emissions
Catalytic converter
The catalytic converter reduces the
amount of harmful substances in the
exhaust gas, such as carbon monoxide
(CO), hydrocarbons (CH) and nitrous
oxide (NO ).
x
Fuel grades other than those listed on
page 110 (e.g. LRP = Lead Replacement
Petrol or leaded fuel) could damage the
catalytic converter or electronic
components.
Caution
Damage to the catalytic converter or the
vehicle may result if the following points
are not observed.
z In the event of misfiring, uneven engine
running, a clear reduction in engine
performance or other unusual problems,
have the cause of the fault rectified by
a workshop as soon as possible. In an
emergency, driving can be continued
for a short period, keeping vehicle speed
and engine speed low.
This does not apply when the Electronic
Stability Programme (ESP®
3 114.
z If unburned fuel enters the catalytic
converter of a petrol engine, this may
result in overheating and irreparable
damage to the catalytic converter.
You should therefore avoid
unnecessarily long use of the starter
when starting off, running the tank dry
and starting the engine by pushing or
towing.
Plus
Controlling exhaust emission
3) kicks in
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.