I have a 2013 ram 1500 5.7 hemi. I have replaced cam, lifters, gaskets, spark plugs, connecting rods due to a work lobe on the cam from a lifter not functioning properly over a period of time. In addition replaced the oil pump and oil pressure sensor due to the pressure being low at isdle and at higher speeds when the vehicle gets to operating temperature. At isdle the oil pressure is 5PSI. All other speeds stay between 18-40 PSI. Check engine light stays on reads different issues every time I check. Right now it says cylinder 3 misfire due to spark plugs. It’s not MDS, turned it off and oil pressure didn’t change What the heck is wrong.