B Series Truck 4WD L4-2606cc 2.6L SOHC (1992)
Canister Purge Solenoid: Description and Operation
Evaporative Emission Control System (EVAP)
The Purge Control Solenoid Valve, located on the right side of the engine compartment near the canister, is an ECU controlled component of the
evaporative emission control system.
The solenoid valve is operated by duty signals from the ECU. The quantity of evaporative fumes introduced into the engine and burned is controlled
corresponding to engine operating conditions.
Evaporative fumes are purged from the charcoal canister under these conditions:
^ Engine at operating temperature.
^ Vehicle being driven in gear.
^ Accelerator pedal depressed (idle switch "OFF").
^ Oxygen sensor functioning properly.
