Clattering Followed by Misfire Code?

[Peter986]

I started my car yesterday morning. There was a clattering noise not unlike lifters that are not pumped up but a little louder. After I drove a couple miles, the CEL came on. When I stopped about 5 miles later, the noise was gone away completely and has not returned. The car ran fine the whole time. Durametric says the code is P0306 (misfire in cylinder 6). Not too informative... Any BTDT?

[Loren]

If it is just one cylinder then it pretty much has to be the coil, the wire, or the spark plug.

[klueless7571]

If it is just one cylinder then it pretty much has to be the coil, the wire, or the spark plug.

I have exactly the same problem in cylinder #1. Computer went into limp mode and the CEL came on. Porsche dealer simply reset the CEL and told me go keep driving. A week later, the same thing happened. They reset the CEL again. Says there isn't much to do until it misfires on a more consistent basis. It's been a couple of days and no misfires since.

Derek