Mds sensors changed( po1417), changed all 4, now po300.

Question

P1417 at first scan. I changed all MDS sensors, oil and filter (5/20), cleaned MAF sensor and 16 plugs, All gapped at .40, new egr valve with gaskets and cleaned the tube up to the intake. Started car and p 1416 now, pulled the #6 coil and plugs to find the new plugs never had spark, as clean as I installed them. Disconnected the neg batt cable for 30 min and it ran like new. 100 or so miles and its misfiring PO 300. Random cylinder misfire. Disconnected both battery terminals and tie rapped them together for 4 hours to do a hard reset on the PCM. Still po300 now. Any advice is much appreciated. I’m thinking the PCM at this point. All mopar parts and the same champion plugs that came out of the engine.