Hey everyone I need some help I have a 2014 jeep with the EcoDiesel she was running rough last week code popped up p016f. Looked it up it said (CLOSED LOOP FUEL PRESSURE CONTROL AT LIMIT - PRESSURE TOO LOW) so I did the fuel filters and the fuel pump started sounding rough so put a new one in still runs a little rough and also have a bad knock coming for the driver side this knock wasn't there before I did the work any help would be much appreciated.