GENERAL 1999 FEATURES GENERAL 1999 FEATURES ENGINE EMISSION CONTROL SYSTEM A service port for inspecting the evaporative emission control system has been provided between the charcol canister and the VSV for EVAP. The evaporative emission control system can be inspected by connecting a pressure gauge to the service port and performing a vacuum or a pressure test. Refer to the repair manual for the respective model for details on the check method. VSV (for EVAP) Service Port Charcoal Canister Fuel Tank Intake Air Chamber 159GE07