Canister Purge Solenoid (Q45)

Canister purge is controlled by ECU using canister control solenoid valve. Vacuum supplied through canister purge signal line to canister purge valve is regulated by canister purge solenoid. When solenoid is energized by ECU, vacuum signal to purge control valve is interrupted. When solenoid is de-energized, vacuum signal is allowed to pass through solenoid and act upon canister purge valve diaphragm.