redgaucho

On my 94 C280, I am having some intermittent engine missing problems, and thought they may be related to this known problem. Basically, this has happened on two ocassions: After driving for about one hour in rainy conditions, the engine starts to miss badly, both at hi speed/rpm and at low/idle. I havent started to troubleshoot it yet, but I will start checking spark plugs, and wires. After that, what would you suggest? Could it be the infamous wiring harness?

Thanks a bunch.