A DPFE sensor is a vehicle sensor that senses the gas pressure passing through the EGR system of the vehicle and transfers this information to the PCM. The Powertrain Control Module (PCM) utilizes this data to control the EGR sensor, the EGR valve, and some other functions to maximize the engine performance and minimize the emission rate. Speed sensor signal; Pressure sensor signal; The pressure sensor is inside the doser injector on this model. The command signal is created by the Cummins ECM. It provides the path to ground for a 20V signal from the DEF pump for a calculated duty cycle. This is used to keep pressure built up in the system. Home Car & Van Fuel & Emissions Fuel Mixture Formation Genuine Ford – Sensor, exhaust pressure – 1786775. PART NO: 1786775. Ford 6.4L Diesel Particulate Filter Pressure (DPFP) Sensor AP63473. Allinat Power Part Number: AP63473. OEM Part Numbers: 8C3Z-9J460-D. DPFE17. Year Range: 2008-2010 Ford F-250, F-230, F-450 and F-550 6.4L Powerstroke Diesel 108K views 6 years ago. In this video we look at a common diesel particulate filter related fault which is highlighting the failure of the differential pressure sensor hoses. The Ford model This process is called DPF regeneration or “regen” and typically occurs automatically every 250 to 500 miles. The ECM uses a differential pressure sensor (DPS) to measure the effectiveness and capacity of the DPF. Simply speaking, the DPS measures the difference in pressure before and after the DPF. In total this has cost me £800 for map £325 for 3 sensors, one EGT sensor being the wrong one ordered. And £40 to my local mechanic for fitting the two egt sensors. So that £1165 excluding travelling 110 mile round trip 3x to customcode. just my thoughts to the people thinking about getting a DPF delete Like any sensor they can go faulty and flag up a false warning. The fact the light has gone out and can be cancelled probably means its OK and the DPF has regenerated. Being electronic they are normally mounted some distance away from the hot exhaust but their location can be found by tracing back the two tubes that lead from the DPF. LBwKG.