2004 Ford Escape 04 Ford Escape Misfire code in #5 cylinder

I have a 2004 Ford Escape XLT, 3.0 L V-6 with 85k miles on it. A few weeks ago, while raining, the car began to sputter and the check engine light came on. I parked the car, and the next day when it was dry, it ran perfectly with no check engine light. A few days ago, it began sputtering again, the check engine light came back on, and the car had poor acceleration, almost coming to a stop when going up hills. I ran the diagnostics and came up with a P0305 code, indicating a misfire in cylinder #5. I also received a code telling me there was excess fuel in my exhaust (which coincides with a misfire). I replaced ALL of the spark plugs, and still had the same problem. I then replaced the Coil on the #5 cylinder. After replacing both the plug and coil in cylinder #5, I am still getting a misfire code for cylinder #5, the spark plug in cylinder 5 smells like gasoline, which tells me that it isn't making a spark, and I can hear a loud "clicking" noise coming from around the coils. Would this be a wiring harness problem?