7- 2 EMISSION CONTROL SYSTEMS
H010A01A-GAT
EMISSION CONTROL SYSTEM (If Installed)
Your Hyundai is equipped with an
emission control system to meet all requirements of the Emission prohibi- tion rules of your province.
There are three emission control sys-
tems which are as follows.
1) Crankcase emission control sys-
tem
2) Evaporative emission control sys- tem
3) Exhaust emission control system
In order to assure the proper function
of the emission control systems, it is recommended that you have your carinspected and maintained by an au- thorized Hyundai dealer in accordance with the maintenance schedule in thismanual. H010B01A-AAT
1. Crankcase Emission Control
System
The positive crankcase ventilation
system is employed to prevent airpollution caused by blow-by gases being emitted from the crankcase. This system supplies fresh air to thecrankcase through the air intake hose. Inside the crankcase, the fresh air mixes with blow-by gases, which thenpass through the PCV valve and into the induction system.
H010C02E-GAT
2. Evaporative Emission Control
System
The Evaporative Emission Control
System is designed to prevent fuel vapors from escaping into the atmo-sphere. Canister
While the engine is inoperative, fuel
vapors generated inside the fuel tank are absorbed and stored in the canis- ter. When the engine is running, the fuel vapors absorbed in the canister are drawn into the induction system through the purge control solenoid valve. Purge Control Solenoid Valve (PCSV)
The purge control solenoid valve is
controlled by the Engine Control Mod- ule (ECM); when the engine coolanttemperature is low during idling, the PCSV closes so that evaporated fuel is not taken into the engine. After theengine warms-up during ordinary driv- ing, the PCSV opens so as to intro- duce evaporated fuel to the engine. H010D01A-AAT
3. Exhaust Emission Control
System
The exhaust emission control system is a highly effective system whichcontrols exhaust emission while main- taining good vehicle performance.
7- 2 EMISSION CONTROL SYSTEMS
SH010A1-E EMISSION CONTROL SYSTEMS (Not all models) Depending upon the market for which the vehicle is destined, the emissioncontrol system will comprise one or more of the following emission con- trol devices.
1) Crankcase emission control sys-
tem
2) Evaporative emission control sys-
tem
3) Exhaust emission control systemIn order that the proper functioning of the emission control systems may be ensured, it is recommended that the vehicle is inspected and maintainedby a Hyundai authorised repairer in accordance with the maintenance schedule in this manual. SH010B1-E
1. Crankcase emission
controlsystem
The positive crankcase ventilation
system is employed to prevent airpollution caused by blow-by gasesbeing emitted from the crankcase by introducing fresh air to the crankcase through the air cleaner where thismixes with blow-by gases and then passes through the PCV valve into the intake manifold from where it sub-sequently enters the combustion chamber and is burned.
SH010C1-E
2. Evaporative emission control
system
The Evaporative Emission Control
System is designed to prevent fuel vapours from escaping into the atmo- sphere through the fuel tank ventila- tion system. SH010D1-E
3. Exhaust emission con trol
system
The exhaust emission control system
is a highly effective system whichcontrols exhaust emission while main- taining good vehicle performance. Whilst the engine is not running, fuel
vapours generated inside the fuel tank are absorbed and stored in a char-coal canister. When the engine is started, the vapours stored in the canister are drawn into the inductionsystem through the purge control sole- noid valve and are subsequently 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 re-main stored in the canister. Under normal running conditions when the engine is warm, the valve opens andthe vapours are drawn into the inlet tract and subsequently burned in the combustion chamber.
