Hyundai Accent: 2. Evaporative emission control (including ORVR: Onboard Refueling Vapor Recovery)
system
Fourth generation RB (2010–present) / Hyundai Accent 2010-2019 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 warmsup 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 th ...
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 mo ...
See also:
Emergency towing
If towing is necessary, we recommend you to have it done by an authorized Hyundai
dealer or a commercial tow truck service.
If towing service is not available in an emergency, your vehicle may be ...
Line Pressure Control Solenoid Valve. Schematic Diagrams
Circuit Diagram
...
Output Speed Sensor. Description and Operation
Description
The output speed sensor (A) is a vital unit that measures the rate of
rotation of the transaxle's turbine shaft and output shaft, and delivers the
readings to the TCM. The se ...