2008 SUBARU WRX MANUAL TRANS. 22,500 MILES. BETWEEN THE TIME THE ENGINE COMES OFF HIGH IDLE (AFTER BEING STARTED COLD) AND WHEN IT IS COMPLETELY WARMED UP, THE ENGINE WILL DROP ITS RPM TO 0 CAUSING AN ENGINE STALL WHEN THE CLUTCH IS DEPRESSED IN ORDER TO CHANGE GEARS. THIS RECENTLY HAPPENED WHEN ENTERING A ROUNDABOUT WHEN I WAS GOING TO SHIFT DOWN FROM 3RD TO 2ND GEAR. AT THIS POINT I ONLY HAVE MY LEFT HAND ON THE STEERING WHEEL AND RIGHT ON THE SHIFT LEVER. THE ENGINE STALLS AND I LOOSE POWER STEERING. POWER BRAKING ALSO SEEMS DECREASED AS I WAS UNABLE TO PREVENT THE CAR FROM RUNNING INTO THE CENTRAL ISLAND OF THE ROUNDABOUT. THIS HAPPENS CONSISTENTLY IN COLD WEATHER. DEALERSHIP HAS TRIED REPAIRS, BUT IS UNABLE TO FIND ANYTHING WRONG (3 SEPARATE ADMISSIONS FOR SERVICE FOR THIS PROBLEM OVER LAST 9 MONTHS). COMPUTER ERROR CODES RETURNED WERE 301,302,303,304. AS OF TODAY THE CAR IS AT THE LOCAL SUBARU DEALER FOR THE SECOND DAY THIS EPISODE. *JB