Emission

There are three EMISSION:

1. PCV.

2. A system for collecting fuel vapors.

3. The exhaust gas cleaning system.

PCV

Crankcase ventilation system is designed to prevent air pollution caused by the break of crankcase gases. This system provides fresh air into the crankcase through the air filter. Inside the crankcase fresh air is mixed with the crankcase gases through the valve and into the positive crankcase ventilation (PCV) in the intake system.

The system EVAP

Fuel vapor recovery system is designed to prevent fuel vapors into the atmosphere.

Adsorber

When the engine is not running, the fuel vapor generated in the fuel tank are absorbed and stored in the adsorber. While the engine is adsorbed fuel vapor from the canister fall into the intake system through the canister purge solenoid valve.

Purge solenoid valve

Solenoid valve canister purge carries an electronic control unit; when the engine coolant temperature is low and while the engine is idling, it is closed to vaporize the fuel did not fall into the intake manifold. After warming up the engine while running under normal conditions, it opens and allows the vaporized fuel into the intake manifold.

Exhaust gas purification system

Exhaust gas cleaning system - a highly effective system to control the composition of exhaust gases and maintains optimum engine performance.

Exhaust catalyser (for gasoline engine)

Catalytic converter - part of the exhaust emission control. It removes some products emission from the engine exhaust. Catalytic converter looks like a muffler and is located in the lower part of the vehicle exhaust system.

The exhaust gases passing through the catalytic converter, it is strongly heated. Contact with a large amount of unburned fuel in the catalyst can result in fire.

Observe the rules of operation of the catalyst below.

Use only unleaded gasoline.

Keep the engine in good condition. Excessively high temperature catalyst may cause undesired operation of electrical systems, ignition or fuel injection.

Do not drive a car with a very low fuel level. If the fuel is used up completely, there may be misfiring and overloading catalytic converter.

Do not allow the engine to idle more than 10 minutes.

Do not start the car engine by towing. This can result in damage to the catalytic converter exhaust gases.

Avoid parking in places where the hot parts of the exhaust system may be exposed to flammable materials or objects, such as dry grass or fallen leaves. This may cause a fire.

Do not touch the catalytic converter or other parts of the exhaust system when the engine is running, because they are very hot.