Rough Idle on Startup and Engine Code
 

I have a 2002 Chrysler T&C with 3.8L. This problem has been going on RANDOMLY for a couple of months now. When you first start the van, sometimes it runs rough like it is missing. After a couple of minutes or when you rev it up, it seems fine. I replaced the spark plugs and it did not seem to make a difference. Then a couple of days ago I actually got a check engine light. I pulled that code and it was Cylinder #2 Misfire. Then about 2 days later, the code went away. Any thougts. I was thinking maybe Spark Plug Wires or Coil Pack. The strange thing is that it is very random when it happens. It might do it 2 times in a row or it may go a week without doing it. Any thoughts or comments would really help.