91 Dakota with a 2.5L 4 cyl. Randomly dies, after several minutes would start back. Now it won't start at all. Keeps throwing the same codes everytime it does this, TPS, o2 sensor, AIS, coolant sensor, incoming air temp sensor all out of range.
I've pulled the harness and checked for continuity and is fine.
The splice at the fender is good.
The harness is grounded.
Has new battery. Alternator tested good.
PCM loosing ground? Any suggestions?

 

Sounds like you got a bad wire problem or a bad computer problem.

 

I unplugged the coil, plugged it back in and removed and installed the asd relay a few times and the thing started.

 

my dad had the same problem with his car and after tons of trial and error it ended up being a faulty coolant temperature sensor. It was reading too high or something which made the engine automatically shut off for safety reasons