Accord L4-2.2L SOHC VTEC (1994)
EGR Control Solenoid Valve: Description and Operation
PURPOSE
Regulates vacuum to the Exhaust Gas Recirculation (EGR) valve, and is controlled by the Engine Control Module (ECM).
OPERATION
The ECM contains memories for optimum EGR lift during various conditions. It reads actual EGR position from the lift sensor. The sensor uses a
plunger operated potentiometer supplying a signal to the ECM. If the EGR actual position differs from it's preferred position, the ECM cuts
control solenoid power to reduce vacuum applied to the EGR valve.
CONSTRUCTION
The sensor uses a plunger operated electric solenoid, with a vacuum chamber mounted below to control engine vacuum.
