My 1991 Wrangler had a similar problem. Turned out to be a bad crank shaft position sensor. Both the camshaft position sensor (stator) and the CSPS must send the computer compatible signals or else the plugs won’t fire.
Either that or your positive battery cable is bad!
My 1991 Wrangler had a similar problem. Turned out to be a bad crank shaft position sensor. Both the camshaft position sensor (stator) and the CSPS must send the computer compatible signals or else the plugs won't fire.
My Jeep Grand Cherokee had the same problem. Finally mechanic identied a bad crank shaft position sensor. Quick and cheap repair once problem is identified. Tell your mechanic to look at that first.