EGR Backpressure Transducer: Description and Operation

Fig. 14 Back pressure transducer valve.:

Fig. 15 Back pressure transducer valve.:

This valve, Figs. 14 and 15, monitors exhaust pressures to activate the diaphragm. The valve controls vacuum applied to the EGR control valve. This allows the operation of the EGR control valve to be controlled by engine operating conditions.