From my limited understanding a DPFE is part of the EGR system and its actual name is Differential Pressure Feedback (I am not sure what the E is for) My knowledge of this stems from getting an ODB code P0401 and trying all fixes to the EGR Valve, Flow Sensor and still not being able to remove the code. I found reference to this part from another site don't remember which one though sorry. Hope this helps a little. DPFE stands for the differential pressure feedback EGR system sensor. It's part of the EGR system. In Fords and Mazdas, it seems to be one of the first parts to defect when a P0401 signal is detected.
Ford is the only American car company that uses a DPFE sensor. GM dpfe sensor are built into the EGR.
where is the DPFE sensor located on a 2002 ford crown victoria?
I dont believe the Impala 2003 uses a DPFE sensor as part of there Emissions system.
YES - www.motorcraft.com lists a DPFE sensor for all available engines on a 1996 Ford Ranger
yes
P1401 is DPFE sensor circuit high, check out this tutorial to replace the sensor on your Ford
On the ( 4.0 liter EFI , V6 engine ) the DPFE is on the upper intake manifold on the drivers side of the engine
No.No.
N/a
Dpfe sensor is the delta (differential) pressure feedback egr (exhaust gas recirculation) it monitors the pressure on the egr valve to make sure it is working.
P0401 means no flow at the dpfe sensor. Usually a bad sensor. or bad hoses from egr ports to dpfe.
The code P1400 reads "DPFE Sensor Voltage Low" (Ford, Mazda). Often it's caused by a bad DPFE sensor or clogged EGR passages. DPFE stands for (Differential Pressure Feedback EGRI) I would clean the EGR valve which cost nothing. If that does not cure the problem, you may need to replace the DPFE sensor, which does cost, and it may not fix the problem. If you want to be sure you replace the correct part, then visit your local Ford dealer. dpfe stands for delta pressure not differential.