Evaporative Emission Control

Evaporative Emission Control
Due to increasing legislation, all new vehicles must be able to limit evaporative emissions (fuel vapour) from the fuel tank.

The ECM controls the emission control system using the following components:
^ EVAP canister.
^ Purge valve.
^ Canister vent solenoid (CVS) valve - (NAS vehicles with vacuum type EVAP system leak detection capability only)
^ Fuel tank pressure sensor - (NAS vehicles with vacuum type EVAP system leak detection capability only)
^ Fuel leak detection pump - (NAS vehicles with positive pressure type EVAP system leak detection capability only)
^ Interconnecting pipe work.