It does sound like an injector that may have an irregular spray pattern causing the misfire.
I would try moving the injector to another cylinder and see if the misfire travels with it. That will confirm it is an injector.
Cylinder 4 Misfire Detected
Engine Mechanical Malfunction
Evaporative Emissions (EVAP) System Malfunction
Evaporative Emissions (EVAP) System Purge Valve
Exhaust Gas Recirculation (EGR) System
Fuel Injector 4
Fuel Pressure Incorrect
Ignition System Malfunction
Misfire Monitor Neutral Profile Correction Has Not Been Relearned Since Last Repair
Vehicle Running Out of Fuel
Thursday, November 8th, 2018 AT 12:57 PM