EMISSION CONTROL SYSTEM


  1. FUNCTION OF MAIN COMPONENTS


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

      Component Function
      ECM Sends signals to the purge VSV to control the purge flow.
      Charcoal Canister Sub-assembly 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 charcoal canister into the intake manifold.

  2. SYSTEM CONTROL


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