Did anyone manage to get to the bottom of this issue?
Mine is basically doing the same thing, hiccuping at idle and a slight lack of power through ther rev range. Basically have done the same as ddrallystagea, changed coil packs and spark plugs with slight improvement for a day or so but the issue quickly returnes.
Craig, you mentioned a 'sensors on the back of the head.' was that Andrews problem in the end by any chance?
thanks for any input guys