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 heated oxygen sensor, optimizing the exhaust emissions.

    2. Exhaust Gas Recirculation (EGR) Control System


      1. The EGR control system uses a high efficiency EGR cooler to obtain high fuel efficiency. In addition, the E.F.I. vacuum sensor assembly, for detecting the intake manifold pressure, adjusts the EGR volume to its optimum level.

    3. Blowby Gas Ventilation System


      1. A blowby gas ventilation system which reduces emissions by forcibly drawing blowby gas, which includes a large amount of HC, into the air intake side and combusting it again is used.

    4. Evaporative Emission Control System


      1. The evaporative emission control system takes in fuel vapors generated inside the fuel tank assembly into the canister, preventing them from being released into the atmosphere. The ECM controls the duty vacuum switching valve in accordance with the driving conditions in order to direct the fuel vapors into the engine, where they are burned.