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Start with fuel pressure regulator. Its the easiest fix 2 bolts and insert it Might have a bad diaphragm

alrighty changed the computer back to the new one after fixing those wires and i have fuel pump noise and pressure on the rail but now i have no spark. Changed the ignition coil and the corroded connector to the coil and still no spark. on a side note i have an orange and possibly white live...

Hooked a test light on the + terminal to the LB/O wire and turned the key on and the light did not shine for any period of time

i can hear the eec relay click when the ignition is on. Alrighty solved two problems with that information. First off the eec relay was missing a red wire I found out it was inserted in the fuel pump relay in a blank spot then turned the key on and still no power to the red wire did some...

According to the wiring diagram the red wire joins up with a bunch of wires and then originates from the computer is that correct?

So the red wire will only have power for two seconds or is it a different wire that energizes the relay and flips the switch

Does it only run for a couple seconds or all the time when key is on?

I thought the eec relay is turned on with the ignition then it runs through the computer then through the fuel pump relay ABS the computer work like a timer telling the pump to only fire for 2 seconds and not run again until a certain rpm is reached.

Tested red wire and there is 0.01 v when key is on

Should be a small ground wire on the battery negative cable that runs the grounds for your fuel pumps that might be disconnected. Had the same problem on 2 different 2.9s

That was the issue that darn ground

Got a bush find a 1987 ford ranger 4x4 STX club cab me and wife have already named “Moose”. Having trouble getting it going but I know it wants to run. First problem fuel pump relay. I have experience with my other 1987 ranger and the first thing I noticed was the ground wire for the relays was...

That was the problem 👌

Which wires on the wiring harness? Green and black? And does the green and black run to the EEC relay?

What am I supposed to be seeing here? I looked for a wire that disconnected with two wires attached but I can't find one.

There is a wire that's been disconnected 😮 I thought it ran the radio or something. I will double check when I get home.

I jumpered it and the pump stays going I then had fuel in the fuel rail. Tried starting and would not start. Turned off pump right away because I'm scared it was gonna break a line or something lol

Tried that, I hear and feel a clicking from the ECM relay, pump still does not run.

Both pumps work. When I bypass on the fuel pump relay connector I can get the pump to run. Pump does not run when the key is switched on.