yo,
ok, good so far that there is 12v around there
Ck that conn on top of tank;
consider cutting out a small floor pan section to test/and/or remove & replace the pump if needed
Cut-out Panel Fabrication for Fuel Pump/Level Sender Replacement in an 83 Source: by A #1 Good Guy Seabronc (Rosie, Fred W) at Ford Bronco Zone Forums
Ground Location in 92-96; "... pump and fuel level sender share a ground) At Rear cross member..."
Source: by miesk5 at Ford Bronco Zone Forums
da Connector info;
90-96 Overview & Diagram; "...For the 5.0L, 5.8L and 7.5L EFI engines, the in-tank mounted high pressure fuel pump is capable of supplying 105 liters (27.7 gallons) of fuel per hour at a working pressure of 270.0 kPa (39 psi). For the 4.9L EFI engine, the pump can supply 90 liters (23.7 gallons) per hour at 380 kPa (55 psi). The pump has an internal pressure relief valve to provide overpressure protection in the event the fuel flow becomes restricted. Overpressure is restricted to 850 kPa (123 psi)... The connector pinout at the bottom of this diagram DOES NOT APPLY TO '96 trucks since they're OBD-II..."
Source: by Steve83 (Steve, That dirty old truck) at
http://www.supermotors.net/clubs/superford/registry/media/283459
FDM & Fuel Pressure
If the image is too small, click it.
The FDM connector shown is for '94-96; '90-93 use the older connector that mounts directly to the FDM plate.
For the 5.0L, 5.8L and 7.5L EFI engines, the in-tank mounted high pressure fuel pump is capable of supplying 105 liters (27.7 gallons) of fuel per hour at a working pressure of 270.0 kPa (39 psi). For the 4.9L EFI engine, the pump can supply 90 liters (23.7 gallons) per hour at 380 kPa (55 psi). The pump has an internal pressure relief valve to provide overpressure protection in the event the fuel flow becomes restricted. Overpressure is restricted to 850 kPa (123 psi).
Connector Location Diagram, in 92-96 (part of Keyless Entry Wiring Diagram for 92-96; scroll to the right); C200, C1048 (E4OD), C911 (left vanity mirror lamp), C271 (inertia fuel shutoff, C268, C509, C203, & C228, C912 (right vanity mirror lamp), right power mirror, C601 or C608, C404 (rear axle sensor-VSS/ABS), C311 & C310 (rear window defroster), manual transmission, C166 (back-up lamp switch), C117, C441 (fuel pump module), C429 (tailgate power window switch), tailgate window switch, C428 (tailgate latch switch, key operated), G401, C209, G200, C213, C221/C222/C223 (electronic shift control module), C220, transfer case assembly, to C161 (4x4 high/low indicator switch), C1020 (BW 1356 Electric Shift on the Fly transfer case (ESOF) output shaft speed (OSS) sensor location), C1012 (transmission range sensor(TR/MLPS), C214, C504 (left door courtesy lamp), C502 (left door lock motor), C503 (window/door lock control switch master, left), C500 (left window motor), C507 (left door speaker)
Source: by Ford via Steve83 (Steve, That dirty old truck) at
http://www.supermotors.net/clubs/superford/registry/media/253951_1
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