7-1
EMISSION CONTROL SYSTEM
EMISSION CONTROL SYSTEM EMISSION CONTROL SYSTEM
EMISSION CONTROL SYSTEM
EMISSION CONTROL SYSTEM
H030A01P-GAT2.2.
2.2.
2.
EE
EE
E
VAPORATIVE
VAPORATIVE VAPORATIVE
VAPORATIVE
VAPORATIVE E
E E
E
E MISSION CON-
MISSION CON- MISSION CON-
MISSION CON-
MISSION CON-
TROL
TROL TROL
TROL
TROL SS
SS
S YSTEM
YSTEM YSTEM
YSTEM
YSTEM (
( (
(
( EE
EE
E xcept canister)
xcept canister) xcept canister)
xcept canister)
xcept canister)
The Evaporative Emission Control System is
designed to prevent fuel vapors from escaping into the atmosphere.
If the fuel-vapor vent line is clogged or dam-
aged, the fuel-vapor mixture will escape intothe atmosphere and cause insufficient emis-sion control. Disconnect the line at both ends, and blow it
clean with compressed air.
Remove the filler cap from the filler pipe, and
check to see if there is evidence that thepacking contact to the filler pipe is faulty. Theoverfill limiter (2-way valve) installed on thevapor line between the canister inlet and fueltank outlet must be checked for correct opera-tion. H050A01P-GAT
3.3.
3.3.
3.
EXHAUST EMISSION CONTROL
EXHAUST EMISSION CONTROL EXHAUST EMISSION CONTROL
EXHAUST EMISSION CONTROL
EXHAUST EMISSION CONTROL
SYSTEM
SYSTEM SYSTEM
SYSTEM
SYSTEM
The Exhaust Emission Control System is a
highly effective system which controls exhaustemission while maintaining good vehicle per-formance.
H060A01P-GATCC
CC
C
atalytic Converter
atalytic Converter atalytic Converter
atalytic Converter
atalytic Converter
All Hyundai vehicles are equipped with a mono-
lith type three-way catalytic converter to re-duce the carbon monoxide, hydrocarbons andnitrogen oxides contained in the exhaust gas.
H000A01P-GAT
7.7.
7.7.
7.
EMISSION CON-
EMISSION CON- EMISSION CON-
EMISSION CON-
EMISSION CON-
TROL SYSTEM
TROL SYSTEM TROL SYSTEM
TROL SYSTEM
TROL SYSTEM
H010A01P-GAT EMISSION CONTROL SYSTEM
EMISSION CONTROL SYSTEM EMISSION CONTROL SYSTEM
EMISSION CONTROL SYSTEM
EMISSION CONTROL SYSTEM
(Gasoline)
(Gasoline) (Gasoline)
(Gasoline)
(Gasoline) Your Hyundai is equipped with an emission
control system. There are three emission control systems which
are as follows.
(1) Crankcase emission control system (2) Evaporative emission control system(3) Exhaust emission control system In order to assure the proper function of the
emission control systems, it is recommended that you have your vehicle inspected and main-tained by an authorized Hyundai dealer in ac-cordance with the maintenance schedule inthis manual.
H020A01P-GAT1.1.
1.1.
1.
CRANKCASE EMISSION CONTROL
CRANKCASE EMISSION CONTROL CRANKCASE EMISSION CONTROL
CRANKCASE EMISSION CONTROL
CRANKCASE EMISSION CONTROL
SYSTEM
SYSTEM SYSTEM
SYSTEM
SYSTEM
The positive crankcase ventilation system is
employed to prevent air pollution caused byblow-by gases being emitted from the crank-case. This system supplies fresh air to thecrankcase through the air cleaner. Inside thecrankcase, the fresh air mixes with blow-bygases, then passes through the PCV valve intothe induction system. H080A01P-GAT
PCV Valve
PCV Valve PCV Valve
PCV Valve
PCV Valve
The crankcase ventilation system must be kept
clean to maintain good engine performance.
Periodic servicing is required to remove com-
bustion products from the PCV valve. H040A01P-GAT
Canister
Canister Canister
Canister
Canister While the engine is inoperative, fuel vapors
generated inside the fuel tank are absorbed and stored in the canister. When the engine isrunning, the fuel vapors absorbed in the canis-ter are drawn into the induction system throughthe purge control solenoid valve.
H090A01P-GATPurge Control Solenoid Valve
Purge Control Solenoid Valve Purge Control Solenoid Valve
Purge Control Solenoid Valve
Purge Control Solenoid Valve
The purge control solenoid valve is controlled
by the ECU; when the engine coolant tempera-ture is low, and during idling, it closes, so thatevaporated fuel is not taken into the surge tank.After engine warm-up, during ordinary driving, it opens so as to introduce evaporated fuel to the surge tank.
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