Coil failures in that model do happen but they are pretty rare. I would take it apart and start swapping stuff. I would swap two of the coils and see if you get a different code, like a code that indicates the next hole over where you just put the bad coil or the same code that would exhonerate your coil an focus your suspicions on the original hole. If the miss stays in that hole you will have to determine if it is a bad plug, bad driver in the control unit, or maybe faulty wiring.

So swap the bad coil with any other coil on the engine, clear the code and check engine light, fire it up and run it until you get a code stored again. Pull the code and see what it is, if it is the same then clear the code and swap/inspect plugs and see what happens from there. Do this and then post back here with results.

Mark