7
EMISSION CONTROL SYSTEMS
EMISSION CONTROL SYS-
TEMS
2
SH010A1-E
(Not all models)
DH010B1-E
1. Crankcase Emission Control
System
When the engine is running, the fuel
vapors absorbed in the canister are
drawn into the induction system through
the purge control solenoid valve.
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.
The positive crankcase ventilation
(PCV) system is employed to prevent
air pollution caused by blow-by gases
being emitted from the crankcase.
This system supplies fresh air to the
crankcase through the air cleaner. In-
side the crankcase, the fresh air mixes
with blow-by gases, then passes
through the PCV valve into the intake
system.
Purge Control Solenoid Valve
The purge control solenoid valve is
controlled by the ECU (Engine Control
Unit); when the engine coolant tem-
perature is low, and during idling, it
closes, so that evaporated fuel is not
taken into the surge tank. After engine
warm-up, during ordinary driving, it
opens to introduce evaporated fuel to
the surge tank.
(1)
(2)
(3)
Crankcase emission control sys-
tem
Evaporative emission control sys-
tem
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 a Hyundai authorised repairer in
accordance with the maintenance
schedule in this manual.
ZH010C1-E
2.
Evaporative Emission
Control System
JH010D1-E
3. Exhaust Emission Control
System
The Evaporative Emission Control
System is designed to prevent fuel
vapors from escaping into the atmo-
sphere.
This system helps control oxides of
nitrogen by recirculating a portion of
the exhaust gases into the intake
manifold, thereby reducing cylinder
combustion temperatures.
Canister
Whilst the engine is inoperative, fuel
vapors generated inside the fuel tank
are absorbed and stored in the canis-
ter.
| Categories | Hyundai Manuals, Hyundai Coupe Manuals |
|---|---|
| Download File |
|
| Document Type | Owners Manual |
| Language | English |
| Product Brand | Hyundai, Coupe |
| Document File Type | |
| Copyright | Attribution Non-commercial |
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