Intermittent random misfire (P0300) - any ideas?
My 2005 KJ has new plugs and coils and a new battery. Once every couple of weeks I'll get a CEL for the P0300 random misfire code. I'll reset it, and everything will be fine for another couple of weeks, and then it'll be back again. I'm not actually aware of the engine misfiring, and since the P0300 refers to multiple cylinders, I figured I *would* notice.
Any suggestions for things to check *other than* plugs, coils and battery? Could it possibly be the camshaft sensor (or similar) going bad? All the engine sensors are the 2005 factory originals, bar the O2 sensors, which have been changed once.