[LittleHoov]

Have you checked your fuel pressure? You can probably rent a gauge briefly from an Auto Parts store, or I actually bought an inexpensive one from Harbor Freight. Low fuel pressure could definitely cause that sort of behavior. I dont know what sort of numbers the 3.5 is even supposed to run though. If memory serves mine was testing at between 35-40psi when running at idle.

Another thing that could cause that sort of behavior is a clogged catalytic converter. Especially the power at only half-throttle or so business. Most folks say to crawl underneath the car and give the cat a couple good hits and listen for rattling or anything that sounds like something stuck in there....I dont know of a good way to test that though.

My next question is: is the random misfire something that has been happening for a long time? Or did it just start? I briefly dealt with a random misfire, but the first time it threw the code was just after I had gotten gas. I attributed it too some bad gasoline and threw the works at it (Seafoam and HEET if memory serves) and cleared the code and it never came back.