YJ 4.0 shuts off randomly, won't stay running.
1995 YJ 4.0
Noticed this problem after rebuilding the engine. After about 90 miles on new motor this problem started. It is intermittent, some days I'll get by fine, others it kicks in after driving 1/4 mile.
Jeep engine shuts off randomly in the middle of driving, no stutter, just shuts off completely. Electrical stuff still on, radio, speedo, etc, but no engine. After pulling off the road, it cranks and starts, but shuts down after 2 or 3 seconds. Sometimes it stays runnning longer, but ultimately shuts off. Does not matter what position the throttle is at, it shuts off.
It is not a starving shutdown, its computer controlled shutdown, as if I turned the key off. At first after cycling the check engine light codes, it came up with 54 - Cam Pos Sensor. Replaced that, problem still exists however that code no longer shows up.
Replaced CPS (crank) but problem still exists.
Any ideas? I don't trust it to drive anywhere, as it shuts off randomly and leaves me in the middle of the road.