Still waiting on a ECU to test on my 91 D50 3.0 A/T the one I got back might be bad (the fuel pump relay buzzes like a key buzzer) except when it running, key on key off it buzzes. I’m waiting on one to test but it’s been 3 weeks they are trying to locate another one to try out.

So the next step is to change out the complete wire loom (rodent damaged)i if I can locate one or just add a carburetor and manifold and screw the EFI if I’m going to drive the thing. What years would work the best I’d like to go 2 barrel carb for it. What other vehicles used the same 3.0 that could be better?