There is the TFI ignition module that is bolted on the side of the distributor, use a 1/4 inch drive thin walled 7/32 for the bolts (regular 1/4 inch sockets won't work). On 90's fords it gave out quite often. With engine running check for PIP signal with DVOM. The 90's fords all had the same problem regarding ignition module failure.
" What were dealing with is the battle between the future and the past, between the powers that were and the powers that have yet to be. " --- John Perry Barlow