My car seems to misfiring again, not long after last time, anyway this time it only seems to do it when i've either been letting it idle it traffic and try to drive away, it doesn't do it when it's cold, not that i'm in the habit of thrashing it before it's warmed up tho. If i take it out on a straight bit of road and thrash it, it clears up in a few mins, and runs fine, is it over fuelling or something????? It can't be the plugs or the gaps as i've had them checked about 3 times.