EMISSION CONTROL SYSTEM


  1. FUNCTION OF MAIN COMPONENTS


    1. The main components of the evaporative emission control system are as follows:

      Component Function
      Canister Contains activated charcoal to absorb the fuel vapor that is created in the fuel tank assembly.
      Purge VSV Opens in accordance with the signals from the ECM when the system is purging in order to send the fuel vapor that was absorbed by the canister into the intake manifold.
      ECM Controls the purge VSV in accordance with the signals from various sensor in order to achieve a purge volume that suits the driving conditions.

  2. SYSTEM CONTROL


    1. Based on the signals from various sensors, the ECM opens and closes the purge VSV. Thus, it controls the purge flow of evaporative emissions (HC) in the canister in accordance with the engine operating conditions.