Emission Control System

The emission control system of your vehicle is covered by a written limited warranty. Please refer to the warranty information contained in this manual and the warranty information booklet in your vehicle.

Your vehicle is equipped with an emission control system that complies with all applicable emission standards. There are three emission control systems, as follows:

(1) Crankcase Emission Control System
(2) Evaporative Emission Control System
(3) Exhaust Emission Control System

To ensure proper operation of the emission control systems, it is recommended that your vehicle be inspected and serviced by an authorized HYUNDAI dealer in accordance with the maintenance schedule in this manual.

NOTICE

For inspection and maintenance (with Electronic Stability Control (ESC) system)

• To prevent the vehicle from stalling during dynamometer testing, turn the Electronic Stability Control (ESC) system off by pressing the ESC switch (ESC OFF indicator illuminates).
• After the dynamometer test is completed, turn the ESC system back on by pressing the ESC switch again.

1. Crankcase Emission Control System

The positive crankcase ventilation system is used to prevent air pollution caused by the discharge of crankcase gases from the crankcase. This system supplies fresh filtered air to the crankcase through the air intake hose. Inside the crankcase, fresh air mixes with crankcase gases, which then pass through the PCV valve into the intake system.

2. Evaporative Emission Control System, Including Onboard Refueling Vapor Recovery (ORVR)

The evaporative emission control system is designed to prevent fuel vapor from escaping into the atmosphere. The ORVR system is designed to load vapors from the fuel tank into the canister during refueling at a gas station, preventing fuel vapor leakage into the atmosphere.

Canister

Fuel vapor generated inside the fuel tank is absorbed and stored in the onboard canister. When the engine is running, the fuel vapor absorbed by the canister is drawn into the intake manifold 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 and the engine is at idle, the PCSV closes so that evaporated fuel does not enter the engine. After the engine warms up under normal driving conditions, the PCSV opens to introduce evaporated fuel into the engine.

3. Exhaust Emission Control System

The exhaust emission control system controls exhaust emissions while maintaining good vehicle performance.

Excessive attempts to restart the engine when it starts or does not start may cause damage to the emission control system.

Engine Exhaust (Carbon Monoxide) Precautions

• Carbon monoxide is present with other exhaust gases. If you smell exhaust gas in your vehicle, drive with all windows fully open. Have your vehicle inspected and repaired immediately.
• Do not operate the engine in enclosed or semi-enclosed areas (such as garages) any longer than necessary to drive the vehicle in or out of the area.
• When the vehicle is stopped in an open area for more than a short time with the engine running, adjust the ventilation system (as necessary) to draw outside air into the vehicle.
• Never sit in a parked or stopped vehicle for extended periods with the engine running.
• When the engine stalls or does not start, excessive attempts to restart the engine may cause damage to the emission control system.

For more information, refer to "Carbon Monoxide" at the beginning of Chapter 6.

WARNING

Engine exhaust contains carbon monoxide (CO). Although colorless and odorless, it is dangerous and may be fatal if inhaled. Follow the instructions on this page to avoid carbon monoxide poisoning.

Catalytic Converter Operating Precautions

WARNING

The exhaust system and catalytic converter become very hot when the engine is running or immediately after the engine is turned off. To avoid serious injury or death:

• Do not park, idle, or drive the vehicle over or near flammable materials such as grass, vegetation, paper, leaves, etc. The hot exhaust system may ignite flammable materials under the vehicle.
• Keep away from the exhaust system and catalytic converter or you may be burned. Also do not remove heat shields around the exhaust system, do not undercoat the underbody, and do not apply corrosion protection to the vehicle. This may create a fire hazard under certain conditions.

Your vehicle is equipped with a catalytic converter, an emission control device.

NOTICE

To avoid damage to the catalytic converter and your vehicle, observe the following precautions:

• Use only UNLEADED FUEL for gasoline engines.
• Do not drive the vehicle when there are signs of engine malfunction, such as misfiring or noticeable loss of performance.
• Do not misuse or abuse the engine. Examples of misuse include turning the engine off and coasting down steep hills in gear with the engine off.
• Do not run the engine at high idle speed for an extended period of time (5 minutes or more).
• Do not modify or tamper with any engine part or emission control system. Have all inspections and adjustments performed by an authorized HYUNDAI dealer.
• Avoid driving with a very low fuel level. Running out of fuel may cause the engine to misfire, which results in damage to the catalytic converter.

Failure to observe these precautions may void your vehicle warranty.