2007 SUB IMPEASSA SPORTBACK CODE 448

Question

GETTING CODE 448 ON MY SUBARU 2007 SPORT BACK LIGHT COMES BACK ON IN ABOUT 10 TO 15 MILES OF FREEWAY DRIVING

Answer 1

P0448 Evaporative emission control system vent control circuit shorted

When you have a code such as this it code right away, the ECM look for open circuit, short circuit and grounds, so this code immediatedly as fault recognition, Subaru calls the the canister vent valve a drain back valve that is located on the cansiter,Replacement of this sensor is required.