I think I am having simmilar problems.. I dont have a scan tool so I am not positive. But when I go WOT it seems to missfire. this just started yesterday. Over the week I had some time so I changed the fule filter, oil change, new plugs, and a 180* t-stat, Oh, and I finally had my Intense PCM installed. I was thinking maby I have a bad wire from when I changed plugs, because thats when it started. the wires are oem replaced almost 2 years ago. I have a friend of mines OBD-II reader now I was going to see what it said tomorrow.