Anything.
My first thought when an eclipse "dies on the highway" is timing belt. Thinking that, I would have gone snooping around the timing cover area and like you, found the CAS wires disconnected. Plug it back in and it starts :scratch:
So why'd it come unplugged? My bet is the timing belt managed to grab the wires and sling them around a sprocket, pulling the plug out and, at least, damaging a wire or three and at worst, (since it still runs) caused the timing to skip a tooth or two. The GT WILL run slightly out of time, but will present the symptoms you report.
But start small. Anything that you had to touch to get to the cap/rotor, I'd recheck. Connection of the intake to the throttle body, PCV hose plugged back into the intake, MAF plugged back in, etc.
My first thought when an eclipse "dies on the highway" is timing belt. Thinking that, I would have gone snooping around the timing cover area and like you, found the CAS wires disconnected. Plug it back in and it starts :scratch:
So why'd it come unplugged? My bet is the timing belt managed to grab the wires and sling them around a sprocket, pulling the plug out and, at least, damaging a wire or three and at worst, (since it still runs) caused the timing to skip a tooth or two. The GT WILL run slightly out of time, but will present the symptoms you report.
But start small. Anything that you had to touch to get to the cap/rotor, I'd recheck. Connection of the intake to the throttle body, PCV hose plugged back into the intake, MAF plugged back in, etc.
