4.0L swap into 89 B2 wont run, need help!

[74bronco2]

recently I upgraded my 89 b2 to a 93 expl. 4.0
I changed dash and engine harness into the B2. I am to the point that I can get it to fire with a quick shot of ether(ignition is working). I have fuel out my regulator on the fuel manifold(should have plenty of fuel pressure). Also I backprobed injectors and have a constant 12v untel cranking then voltage dips to about 1v. I have re checked all connections and have ran out of ideas.

Any assistance would be apreciated thanks


74 b2

 

[okietheranger]

recently I upgraded my 89 b2 to a 93 expl. 4.0
I changed dash and engine harness into the B2. I am to the point that I can get it to fire with a quick shot of ether(ignition is working). I have fuel out my regulator on the fuel manifold(should have plenty of fuel pressure). Also I backprobed injectors and have a constant 12v untel cranking then voltage dips to about 1v. I have re checked all connections and have ran out of ideas.

Any assistance would be apreciated thanks


74 b2

i had that same problem when i swaped for a 4.0 but it was a 92 dont know if the wireing way different, but i could get it to start on either and had fuel pressure but it wasnt makeing it passed the injectors, turns out i had one or two wires wrong still had the ignition side working fine but not the injector side, hope this helps but it was either kinda hard to explain without a wireing diagram in front of me but a thick black wire with a green stripe, must be a good ground and a grayish blue wire i belive a fuesable link wire needed to be hot i belive they were over by the starter solenoid on the pass side inner fender.. hope this helps but not to sure if its all right maybe i shouldnt of said anything lol