Delta Pressure Feedback Electronic (DPFE) EGR Transducer
WARNING: This page does not describe the selected car, but rather 15 other vehicles, including the 1993 Mercury Tracer, 1993 Mercury Topaz, 1993 Mercury Sable, 1993 Mercury Grand Marquis, and 1993 Mercury Cougar. However, it is still accessible from the selected car via links, so may be relevant.
Faults in DPFE transducer or circuit should set a service code. See QUICK TEST in G - EEC-IV TESTS W/CODES article in the ENGINE PERFORMANCE Section. If service code has not been set, see CIRCUIT TEST DL in G - EEC-IV TESTS W/CODES article in the ENGINE PERFORMANCE Section diagnostic procedures.