About 3 years ago I had an engine fire. I replaced the wiring harness, but I had to splice in a large part of the sensor connectors from my old harness to match the correct connectors.
About a year ago I did a complete engine rebuild. Since the rebuild there has been a vibration, you can see "diagnosing engine vibration" in the OEM thread.
I'm now pretty much down to something not getting the correct signal, i.e., crimp gone bad or stretched apart during engine removal/install. Or it's a tranny issue, right after the engine swap I started leaking fluid from the front of the tranny.
I'm already yanking the tranny so I can pull the pump and replace the pump seal and the front shaft seal, and possibly replace the torque converter (don't know what abuse the first owner put it through, but he beat the rest of the Jeep to poop...and I ran seafoam tranny treatment through it and thinking maybe something caused a clog....plus it's got 220,000 miles...about time for a refresh).
So if all else fails, I'm down to tracking down a short in an electrical system that has already been hacked apart once....would be easier to just put in a new one. If there is an aftermarket one for about $300 that I could completely wire myself, it would be worth it to me...if not, and I can find a complete drop in OEM harness that will do, but I don't need to just swap one hack and crimp job for another, nor do I want to pull all the connectors and properly solder and shrink wrap them, as it will likely require pulling the whole harness from the Jeep to do it properly anyway.
EDIT: Oops, 1994 Jeep Cherokee Country 4.0 Automatic Transmission