Aurora V8-4.0L VIN C (1996)
EVAP Purge Vacuum Switch: Description and Operation
EVAP Purge Vacuum Switch
DESCRIPTION
The purge vacuum switch is a normally open switch which closes when vacuum is applied. It is an input to the PCM to signal that the EVAP solenoid
has opened, allowing manifold vacuum to draw fuel vapors from the charcoal canister into the intake manifold.
