EGR Solenoid Vacuum Valve Assembly
This assembly consists of 2 solenoid valves, one to supply vacuum to the EGR valve when energized, the other vents EGR vacuum source to the atmosphere when de-energized. Solenoids are controlled by the ECA. The vacuum supply line has a restrictor in its inlet port to reduce its flow compared to the vent solenoid, which is unrestricted.