Did water play a role, Richard? E.g. A car wash shortly before?
I had these symptoms after washing the car, the OBD showed the injectors not making contact because the plugs were wet. In the meantime, I have had a cover for the injectors for a few months and everything was fine. But just today I had the same symptoms as you after a car wash. The difference is that this time the injectors were not displayed in the OBD. But the air temperature sensor in the MAF sensor was indicated as faulty, it is also an area that gets wet when washing the car. I disconnected the plug from the MAF sensor and blew it dry. The car drives normally again and no error was displayed in the OBD, I read and delete morer times. I think that after nine years the rubber gaskets in the connectors don't seal as well and the material is not as soft. I don't have a 3.7, but a 2014 4/4, the causes of the engine misfires could be similar. But...it could be anything as a reason, from the accelerator pedal via the electric throttle to the coil pack....I would start with the MAF sensor or its plug.
