Evaporative Emission Purge Solenoid

Operation


The evaporative emission purge solenoid is an ON/OFF type of solenoid valve; it functions to regulate the introduction ot purge air from the evaporative emission canister to the intake manifold plenum.

Battery power supply is supplied, by way of the multiport fue injection, to the evaporative emission purge solenoid. When the engine control module switches ON the power transistor within the unit, current flows to the coil, and purge air is introduced.





Inspection






Harness Inspection


Actuator Inspection


EVAPORATIVE EMISSION PURGE SOLENOID INSPECTION

NOTE: When disconnecting the vacuum hose, make an identification mark on it so that it can be reconnected to the original position.



(1) Disconnect the vacuum hoses (non stripe and red stripe hoses) from the solenoid valve
(2) Disconnect the harness connector from solenoid valve.





(3) Connect a hand vacuum pump to the nipple to which the red-striped vacuum hose was connected.





(4) Apply a vacuum and check for air-tightness when voltage applied directly to the evaporative emission purge solenoid when the voltage is discontinued.









(5) Measure the resistance between the terminals of the solenoid valve.

Standard value: 36-44 Ohms [at 20°C (68°F)]