I appreciate the info. But how, do I remove, and/or bypass the Crane? I tried following the wires but got lost in a bunch of wire loom. Is it as simple as "unplug and plug in factory"? Where even is the factory ignition module? I was thinking of going to my storage unit to look for my old coil.
update:
probed the + side of the coil connector with both Key on, and cranking and nothing. So I'm guess its not the coil, and probably wasn't the PIP/distributor either. I'm going to try to pull codes now to see if that helps at all.
Update 2:
I pulled codes, and its possibly not good. I looked up the Foxbody codes and they are the same, the truck has a 91 A9M ECU from my 91 GT running it. I got:
15- ECU ROM failure
67- Neutral Drive Switch Open. I imagine its looking for signal from the neutral switch from a manual 5.0, which the truck won't have. Again seems expected.
81, 82 & 84- All EGR / emissions (all gone, so expected)
and 11 for stored codes, so all good there
Another strange thing I notice today was the big fuse for the ABS is gone, would explain the ABS light on the dash. I don't know why? I don't know if the ABS is controlled by something in the trans "circuit", or the ECU, but my truck has the Mustang ECU with the old Baumann TCS for the trans. Maybe there's no way to control the ABS and the brakes activated?