Srt-68 Barracuda
I was told by a reliable source (Chrysler Technician) that the LX computer needs to "see" all, every single stinking one, of the sensors in the harness (front bumper to rear bumper) in order to function. That's why I abandoned a swap into my V6 SXT Magnum.
I think that's why the truck harness & computer works better than the LX harness.
Might want to check it out to avoid frustration later.
fastmopar