The EVAP purge solenoid controls the flow of vapors from the
EVAP system to the intake manifold. This normally closed
solenoid is pulse width modulated (PWM) by the control module
to precisely control the flow of fuel vapor to the engine. The
solenoid will also be opened during some portions of the EVAP
testing, allowing engine vacuum to enter the EVAP system.
EVAP System Purge Solenoid
Warning Lights