Transit Connect L4-2.0L (2010)
Canister Purge Control Valve: Description and Operation
Evaporative Emission (EVAP) Canister Purge Valve
ENGINE CONTROL COMPONENTS
Evaporative Emission (EVAP) Canister Purge Valve
The EVAP canister purge valve is part of the enhanced EVAP system controlled by the PCM. This valve controls the flow of vapors (purging) from
the EVAP canister to the intake manifold during various engine operating modes. The EVAP canister purge valve is a normally closed valve. The
EVAP canister purge valve controls the flow of vapors by way of a solenoid, eliminating the need for an electronic vacuum regulator and vacuum
diaphragm. For E-Series, Escape/Mariner, Expedition, F-Series, Fusion 2.5L, Fusion 3.0L, Milan and Navigator, the PCM outputs a duty cycle
between 0% and 100% to control the EVAP canister purge valve. For all others, the PCM outputs a variable current between 0 and 1,000 mA to
control the EVAP canister purge valve.
Typical EVAP Canister Purge Valve
