Fuel Filter Restricted sensor; on filter housing 94/95; on regulator block 96/97
(Ford) E8TZ-9S283-A

This is the sensor that triggers the "fuel filter" warning light on the dash. Looks like an old fashioned oil pressure sending unit with a single red with white stripe wire attached to the top. On my 97 it is located on the right side of the fuel filter on the fuel pressure regulator block.