Differential Pressure Feedback Electronic (DPFE) Sensor
WARNING: This page is about a different car, the 1994 Ford RV Cutaway, 1994 Ford Econoline, 1994 Ford Cutaway, and 1994 Ford Club Wagon. However, it is still accessible from the selected car via links, so may be relevant.
Faults in DPFE sensor or circuit should set a trouble code. If no trouble code has been set, see CIRCUIT TEST DL in TESTS W/CODES - EEC-IV (GASOLINE) article in the ENGINE PERFORMANCE section.