Engine swap-need wiring help
Junior User
Joined: Jun 2000
Posts: 62
Likes: 0
Engine swap-need wiring help
I am putting a 302/AOD from an 84 E100 Van in a project. I want to put it in and leave all the computer wiring intact for now because it ran when it came out. Probably will change to Aluminum intake and 4-bbl and earlier Duraspark later. I have all the wires figured out but 2. On the drivers side there are 3 plugs; one to transmission (neutral safety and backup lights), one to coil and gauge senders, and a third that I don't understand. It has 1 light blue wire, 2 white wires and a red with light blue stripe. The light blue is not used on the engine side of the harness. The red with blue stripe is daisey-chained to the starter engage wire, so I know what it does. That leaves the 2 white wires. I think one comes from switched power and the other goes to alternator field. Can anyone confirm or deny this? Any help would be greatly appreciated.
Posting Guru
Joined: May 2002
Posts: 1,495
Likes: 2
From: Northwest Fl
Engine swap-need wiring help
I am not yet to the point of wiring everything up in my similar changeover to 302EFI/AOD but in checking out some of the tech articles here at FTE I did find an article by Donald Haulsee (1998) on a change over for the mustang 302EFI/AOD system that may offer some information on the procedure. I haven’t read it completely but hope it helps. https://www.ford-trucks.com/articles/5liter.php
Junior User
Joined: Jun 2000
Posts: 62
Likes: 0
Engine swap-need wiring help
I will check out the article again, it was excellent. That is what I wanted (EFI), but I found this rusty van so cheap ($300 with a brand new battery and recent transmission overhaul) that I couldn't pass it up. This is not an EFI, or a throttle body either. It has a feedback 2-bbl carburetor, so it is a little different setup. Thanks for the reply.
