EMISSION CONTROL SYSTEM


  1. OUTLINE


    1. Exhaust Emission Control System


      1. Three-Way Catalytic converters (TWCs) are used in order to reduce exhaust emissions.

      2. The ECM controls fuel injection volume based on the signals from the air fuel ratio sensor and oxygen sensor, optimizing the exhaust emissions.

    2. Evaporative Emission Control System


      1. The evaporative emission control system prevents the fuel vapor that is created in the fuel tank assembly from being released directly into the atmosphere.

      2. The canister stores the fuel vapor that has been created in the fuel tank assembly.

      3. This system consists of a purge VSV, canister and ECM.

      4. The ECM controls the purge VSV in accordance with the driving conditions in order to direct the fuel vapor into the engine, where it is burned.

    3. Exhaust Gas Recirculation (EGR) System (Models with EGR System)


      1. EGR control, together with the high efficiency EGR cooler, offers high fuel efficiency and power output. In addition, the vacuum sensor assembly detects the intake manifold pressure. This information is used to adjust the EGR volume to its optimum level.