Ninety-Eight V6-3.8L VIN K (1995)
Canister Purge Solenoid: Description and Operation
Canister Purge Solenoid
PURPOSE
The Powertrain Control Module (PCM) operates a normally closed solenoid valve, which controls vacuum to the purge valve on the charcoal
canister.
OPERATION
The PCM turns "ON" the Pulse Width Modulated (PWM) signal to the solenoid valve to control purge when all conditions for allowing purge are
met. It is possible for the Evaporative Emissions (EVAP) system to be purging at idle, in "Closed Loop," at cruising speeds and in "Open Loop."
The PCM pulses "ON" the solenoid to allow purge when.
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Engine is fully warmed up.
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After engine has been running a specified period of time.
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The Intake Air Temperature (IAT) reading is above 9.5°C (50°F).
