Aerostar 2WD V6-182 3.0L (1995)
Canister Purge Solenoid: Description and Operation
Fuel Vapor Canister Purge Regulator Valve
PURPOSE
The fuel vapor canister purge regulator valve is a normally closed valve in the evaporative emission system. It is located in the vapor line between
the fuel vapor canister and throttle body.
OPERATION
The operation of the fuel vapor canister purge regulator valve is controlled by the powertrain control module. When the engine is off, the fuel
vapor canister purge regulator valve is not energized and is in a closed, non-flowing condition. When the engine is running, the powertrain control
module reads engine rpm, engine load, engine temperature and other variables, and decides the proper time for the engine to accept fuel vapors.
When this occurs, the powertrain control module energizes the fuel vapor canister purge regulator valve, allowing flow from the fuel vapor
canister to the intake manifold. The vapors are then consumed in the engine. This action "purges" the fuel vapor canister of fuel vapors.
