P1391 intermittent pause while driving. Finally activated light and OBDII code P1391. How do I fix it?

Both point to a problem with a module rather than a sensor. We have an auto-electrician Expert here and hopefully he will be along. The first thing to do is clear the codes and see if they come back. If they do, you need a good auto-electrician, not a mechanic and not a guy from Autozone.

This tells you what causes P1698.

P1698 JEEP Code - PCM Fault No CCD Message From TCM

https://www.engine-codes.com > p1698_jeep
'P1698 JEEP code possible causes · Faulty Transmission Control Module (TCM) · Transmission Control Module harness is open or shorted · Transmission Control Module ...

This tell you all the items that can cause P1391.

P1391 JEEP Code - CMP or CKP Signal Intermittent Condition

https://www.autocodes.com > p1391_jeep
'P1391 JEEP code description ... The Powertrain Control Module (PCM) monitors the Camshaft Position Sensor (CMP) Or Crankshaft Position Sensor

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Error Code P1391 is defined as CMP or CKP Signal Intermittent Condition. It refers to intermittent conditions in the CMP (camshaft position sensor)

generic p1391 is CMP or CKP Sensor Signal Intermittent Conditions.
p1391 code Ask com YouTube Search this link is codes more for chrysler ---the following codes pertain to your vehicle p1393 is Glow plug circuit low input, bank #2 (left) Open/short/miswired circuit, ... ---- p1391 is Glow plug circuit low input, bank #1 (right) Open/short/miswired circuit, faulty relay, glow plugs.
An Introduction to the Power Stroke Glow Plug System this link will explain and assist in repair

P1391 Chrysler - CMP or CKP Signal Intermittent Condition http://engine-codes.com/p1391_chrysler.html#ixzz3dGwWFAtB
Your other codes are all detailed here:

P0355 Ignition Coil Primary Secondary Circuit Malfunction

Check connections to crank sensor, then reset your comp by disconnecting your battery cables and holding them together. Make sure to have the code cleared as well.

P1391 (M) Intermittent Loss of CMP or CKP Loss of the Cam Position Sensor or Crank Position sensor has occurred.

P1391 means intermittent loss of CKP and CMP , these sensor are monitor when the engine cranking,or running,These can come from a damage flex plate for the cranksensor or damage tone wheel for the camsensor,to a failing cranksensor ,failing camshaft sensor, to even the harness intermittent connnection

The codes you mention 301-302-303 are all misfire in the respective cylinders. you should replace the coil, while you are at it also verify the condition od the sparkplugs.

P1391=Intermittent loss of CMP or CKP,
Thats the cam sensor or crank sensor,

could be thottle postion sensor

P1391 Intermittent Loss Of CMP Or CKP Sensor Signals - From engine-light-help,com
I believe it to be a Crankshaft Position Sensor.