EGR Control Solenoid: Description and Operation

Electronic EGR Assembly:

The Electric EGR Transducer (EET) is a back pressure transducer combined with an electric vacuum solenoid. The electric solenoid receives its electrical signal from the engine controller. Using this signal, the solenoid regulates the amount of vacuum allowed to flow through the solenoid and on to the transducer. The back pressure transducer measures the exhaust gas back pressure in the exhaust system and uses that reading to vary the strength of the vacuum signal applied to the EGR valve, thereby providing the proper amount of EGR flow for all operating conditions.