Hyundai Matrix User Manual

7
EMISSION CONTROL SYSTEMS
2
EMISSION CONTROL SYSTEMS
SH010A1-E
(Not all models)
Depending upon the market for which
the vehicle is destined, the emission
control system will comprise one or
more of the following emission control
devices.
(1) Crankcase emission control sys-
tem
(2) Evaporative emission control sys-
tem
(3) Exhaust emission control system
In order that the proper functioning of
the emission control systems may be
ensured, it is recommended that the
vehicle is inspected and maintained
by an Hyundai authorised repairer in
accordance with the maintenance
schedule in this manual.
SH010B1-E
1. Crankcase Emission Control
System
The positive crankcase ventilation
system is employed to prevent air
pollution caused by blow-by gases
being emitted from the crankcase by
introducing fresh air to the crankcase
through the air cleaner where this mixes
with blow-by gases and then passes
through the PCV valve into the intake
manifold from where it subsequently
enters the combustion chamber and is
burned.
SH010C1-E
2. Evaporative Emission Control
System
The Evaporative Emission Control Sys-
tem is designed to prevent fuel vapours
from escaping into the atmosphere
through the fuel tank ventilation sys-
tem.
Whilst the engine is not running, fuel
vapours generated inside the fuel tank
are absorbed and stored in a charcoal
canister.
When the engine is started, the vapours
stored in the canister are drawn into
the induction system through the purge
control solenoid valve and are subse-
quently burned.
The purge control solenoid valve is
controlled by the ECU; when the en-
gine coolant temperature is low or the
engine is idling, the purge control valve
is closed and fuel vapours remain
stored in the canister. Under normal
running conditions when the engine is
warm, the valve opens and the vapours
are drawn into the inlet tract and sub-
sequently burned in the combustion
chamber.
SH010D1-E
3. Exhaust Emission Con Trol
System
The exhaust emission control system
is a highly effective system which
controls exhaust emission whilst main-
taining good vehicle performance.
fcuk-7.p65 12/27/2006, 10:17 AM2

Hyundai Matrix Specifications

General

Brand	Hyundai
Model	Matrix
Category	Automobile
Language	English