I have a question on a 240D. It starts great & idles good. If you take off and drive on the road like 15 miles or so then come to a stop sign. It wants to run a bit rough and shakey & not the nice smooth idles when it was colder. I have ran a lot of cleaner thru it, but I thought if it was a clog it would do it when it was cold, as well. The filters are clean and new. I haven't cleaned the tank screen.