When i'm in traffic and i need to move up like half a car length, i let off the clutch like halfway step on the gas a little and while i'm halfway on the clutch push it back in to stop. Once i have the clutch all the way in the idle becomes rough and 50% of the time it stalls. Its a 2002 wrx with 42,000 miles i bought it in december. Within the last 3 weeks i've got 3 dtc's First p1544 (high exhaust temp) p0? (lean fuel on bank 1) and p0303 (#3 cylinder misfire). I have brought it to the subaru dealership twice and they just clear the code and try to reduplicate the problem while there computer hooked up to it, but they come up with nothing. It could be so many things i'm stumped.