Air Injection Vacuum Control Solenoid Valve: Description and Operation

EVR Solenoid:

SECONDARY AIR INJECTION BYPASS SOLENOID
The Secondary Air Injection (AIR) Bypass solenoid is used by the Powertrain Control Module (PCM) to control vacuum to the Secondary Air Injection Diverter (AIRD) valve. The AIR Bypass solenoid is a normally closed solenoid. The AIR Bypass solenoid also has a filtered vent feature to permit vacuum release