1997 Chrysler LHS Car will some times run

Engine Performance problem
1997 Chrysler LHS 6 cyl Front Wheel Drive Automatic

Car broke down one day on my way home. Got it to the side of the road and within 1 minute it started back up. Drove for about ten miles and it stalled again.
Every thing pointed to bad fuel pump. Put new fuel pump on car still wouldn't start. Was going to check for spark pulled one wire off a plug went to turn it over to see if I was getting spark car started and ran good. Drove it for about 3 miles no problems. Next day went out started car noticed check engine light is now off. Went about a half mile car stalled out and wuldn't start. !0 hours later still won't start turns over but won't fire. Sounded like it wanted to fire but wouldn't. Tried starting it the next day about 4 or 5 times still same result. Got a scan tool gave me thes codes PO353 PO352 PO351 PO 301 PO302 PO304 PO306 PO300. Ignition coil primary circuit and cylinder mis fire codes so I got a new Ignition coil unhooked the wires from the old and put them on the new one car fired right up. Problem solved I don't know. Put the plug wires back on the old coil and the car ran fine and yes I had the firing order right to begin with. Disconnected the battery to clear the codes and then started car again and let run for an hour no check engine light car keeps running. What is going on?