Sable V6-183 3.0L DOHC VIN S MFI (1997)
EGR Electronic Vacuum Regulator Solenoid: Description and Operation
EVR Solenoid
PURPOSE
The EGR Vacuum Regulator (EVR) solenoid is an electromagnetic device which is used to regulate the vacuum supply to the EGR valve.
Vacuum Output/Duty Cycle Chart
EGR Vacuum Regulator Solenoid Data Chart
OPERATION
The solenoid contains a coil which magnetically controls the position of a disc to regulate the vacuum. As the duty cycle to the coil increases, the
vacuum signal passed through the solenoid to the EGR valve also increases. Vacuum not directed to the EGR valve is vented through the solenoid vent
to atmosphere. Note that at 0 percent duty cycle (no electrical signal applied), the EGR Vacuum Regulator solenoid allows some vacuum to pass, but
not enough to open the EGR valve.
