That code is Intermittent loss of either crankshaft position sensor or camshaft position sensor. The first thing that I'd try is to check that the old connectors aren't at all loose and possibly tape or wire them to ensure a proper connection at all times after cleaning them.

i photographed a bunch of things and sent them to you to hopefully help in your testing. It seems that the crankshaft is more important than the camshaft one because the camshaft position sensor can default to it's past reading. A physical fault could be chipped teeth on the flywheel. When you checked it for tightness did you also slowly turn and inspect all of the teeth? You should be able to remove the start, disconnect the battery, and have someone slowly turn the engine over by the bolt on the crankshaft pulley.

The images that I sent to you have some instructions about testing the sensors with a multimeter. Report back about what you tried and what you saw from those trials. Also, check for continuity/discontinuity between all of the wires on these two sensors. Since you have twice replaced each I would be suspicious that the issue isn't a sensor, but rather something else. That something else could be a short or open in the wiring. You can test ohms from the point of contact at each sensor to the other end of the wire for openness.

 

 

 

sounds a lot like an intermittent open circuit, such as a busted wire internally, usually near the connector

not a very easy thing to diagnose & fix unfortunately, piggy back a thin wire is what I try 1st

 

OP says he has new Mopar sensors x2 plus harness, so the bad sensors and wires may have been fully explored.

Hard starting could be bad timing. I would check for timing chain play. Pull the distributor cap. Put crankshaft pulley at -0-. See how many degrees crankshaft moves before rotor starts to move.