I have an 04 GP. The car has a slight miss while idling and driving. The repair shop advised ODB code P0205 (injector #5) misfire. The shop replaced the pigtail on injector #5. Problem still exist. I replace plugs and wires and coil for #5.
I've narrowed down the problem to either the injector or the PCM. I have 66k miles on the car. Any ideas what to check next? Any help on this would be greatly appreciated before I take it to the dealership.

Thanks
Glen