I would guess, if you look closer it is coming from either the sensor above that pipe next to the cam cover or the cam cover itself. I have a leaky cam cover on mine, and its on the left side. It leaks down the front of the engine and gets on the sensor I spoke of, the header pipe, and all the way down the front of the engine. I will bet you are having the same troubles. There are 6 rubber compression washers used as a clamping force on your cam cover, and its gasket. It is either one of those, or your cam cover gasket IMO. Take a closer look, and tell me what you find.
PS, the washers are $6-7/ea, and the cam cover gasket is about $36
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