Hyundai Azera: 2. Evaporative emission control (including ORVR: Onboard Refueling Vapor Recovery)
system
Fifth generation HG (2011–2025) / Hyundai Azera 2011-2025 Owners Manual / Maintenance / Emission control system / 2. Evaporative emission control (including ORVR: Onboard Refueling Vapor Recovery)
system
The Evaporative Emission Control System is designed to prevent fuel vapors from escaping into the atmosphere.
(The ORVR system is designed to allow the vapors from the fuel tank to be loaded into a canister while refueling at the gas station, preventing the escape of fuel vapors into the atmosphere.)
Canister
Fuel vapors generated inside the fuel tank are absorbed and stored in the onboard canister. When the engine is running, the fuel vapors absorbed in the canister are drawn into the surge tank through the purge control solenoid valve.
Purge Control Solenoid Valve (PCSV)
The purge control solenoid valve is controlled by the Engine Control Module (ECM); when the engine coolant temperature is low during idling, the PCSV closes so that evaporated fuel is not taken into the engine. After the engine warms-up during ordinary driving, the PCSV opens to introduce evaporated fuel to the engine.
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.
This system supplies fresh filtered air to the crankcase thro ...
3. Exhaust emission control system
The Exhaust Emission Control System is a highly effective system which controls
exhaust emissions while maintaining good vehicle performance.
Vehicle modifications
This vehicle should not be modifi ...
See also:
Fuel filter
A clogged filter can limit the speed at which the vehicle may be driven, damage
the emission system and cause multiple issues such as hard starting. If an excessive
amount of foreign matter accumula ...
Repair procedures
Adjustment
Inspect Glass Alignment
1.
Check for abnormal noise or bending during operation.
2.
With the sunroof fully closed, check for water leakage.
3.
The roof panel (B) should be even ...
Automatic transaxle fluid
Automatic transaxle fluid does not need to be checked under normal usage conditions.
But in severe conditions, the fluid should be changed at an authorized HYUNDAI
dealer in accordance to the schedu ...
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Hyundai Azera Manuals
