Yo Nathan,
As Seabronc advised; Ford EVTM is best to use.
Here are some Wiring Diagrams & Info;
300 CID, 84-85, Feedback Carbureted Problem Areas; "...This pickup/Bronco application typically suffers from abuse, neglected service and a poorly designed manifold and feedback system. The vehicle will drive tolerably in open loop all the time, suffering from poor driveability and fuel economy (typically in the 8-10 mpg range). Check the mixture control solenoid on the carburetor for a varying duty cycle. A fixed 50 percent duty cycle is the open-loop default value. Check the oxygen sensor for switching (frequency) and amplitude. Verify powers and grounds to the ECU (computer - located inside, above the accelerator pedal). The ECU and 02 sensor grounds are on the firewall in the engine compartment low on the driver's side. Other critical inputs to the computer are the coolant temperature sensor and manifold absolute pressure (MAP) sensor (frequency-based), which both ground ahead and above the battery on the right inner fender well. Manifold leaks are very common (both intake and exhaust). Check all manifold, carburetor mounting and manifold preheat bolts and gaskets for tightness and leaks (flowing propane around gasket areas makes this fairly simple). The exhaust manifold is a relatively thin casting and can be badly warped, particularly if the vehicle has been heavily loaded, used for towing or driven through deep water. A leaking exhaust manifold will dump raw oxygen on the O2 sensor and can make the feedback system attempt to go rich. Carburetor throttle shaft wear is an area for particular attention. Some of the carburetor screws have a propensity for vibrating loose and having the carb literally disassemble itself in normal use. When rebuilding the carburetor pay careful attention to the reassembly of the accelerator pump components -- the washer goes on top of the diaphragm, not below it. This problem has been seen on several remanufactured carburetors as supplied from the rebuilder. Re-jetting should be considered a last resort. Air injection switching (upstream, downstream), exhaust system integrity, and catalyst function are areas of common problems on these trucks as well..."
Source: by aircarecolorado.com
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View attachment 13643
Fuse Block Diagram in an 85
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Sample diagram-how to read and interpret wiring
Common wiring diagram symbols
Neutral Safety Switch (also referred to as Back-Up Switch) Wiring Color Codes in an 85; "...This schematic has a picture of the neutral safety/backup lamp switch in the corner, and gives the wire colors for the back up lamp circuit in the schematic. The neutral safety portion of the connector has a white with pink going in,(if it was equipped with starter interrupt) and a red with light blue going out to the starter relay. Without starter interrupt, both the wires going into and out of the neutral safety switch are red with a lt blue tracer..."
View attachment 13644
Ignition Lock Cylinder Adjustment & Switch Pin-Out Diagram & Continuity Testing (Logic Tables) in an 83; "...The following procedure is from the 1983 Ford Service manual, with a few minor wording changes, but should work for any year. Also included are a couple of illustrations from the same procedure to help you visualize it..."
Source: by Seabronc (Rosie, Fred W) at Ford Bronco Zone Forums
http://broncozone.com/topic/7243-ignition-switch-adjustment-proceedure/
Ground Locations in an 84; G203 RH side of engine; G208 near TPS; G209 forward of RH side of dash panel; G701 behind IP near LH side of radio; G757 front of engine near distributor
Source: by Seabronc (Rosie, Fred W) at Ford Bronco Zone Forums
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Also check w/local library; most have Chilton o-line service from Home using library ID & password;
other have All-Data (Best, same as Ford EVTM/PCED or Auto Repair Reference Center (ARRC)
Auto Zone has wiring diagrams in their Vehicle Repair Guides (Free for MyZone Members) - Register there t view, print etc.
Here are some for example;
View attachment 13641
1985 F-Series pick-up and Bronco, section one
View attachment 13642
1985 F-Series pick-up and Bronco, section two