Summit Wagon AWD L4-2350cc 2.4L SOHC (1995)
EGR Control Solenoid: Description and Operation
EGR Solenoid
PURPOSE
The ECM actuates the EGR control valve to regulate the amount of vacuum supplied to the EGR valve.
OPERATION
The EGR control solenoid is a duty-cycle type solenoid. It has a valve that opens and closes the vacuum source line to atmosphere many times per
second. This allows only a certain amount of ported vacuum to be applied to the EGR valve, thereby controlling the amount of EGR operation.
The ECM opens and closes the negative circuit and the multiport fuel injection relay supplies the positive circuit.
