System Description

The Differential Pressure Feedback Electronic (DPFE) EGR system controls the oxides of nitrogen (NOx) emissions. Small amounts of exhaust gases are recirculated back into the combustion chamber to be reburned with the air/fuel charge. The DPFE EGR system consists of a DPFE sensor, EGR valve, EGR vacuum regulator solenoid, orifice tube assembly, related wiring, PCM and vacuum hoses.