Subaru 2009 IMPREZA Service Manual page 432

(1) Pressure control solenoid valve
(2) Canister
(3) (3)
Electrical Component Location
(3) Drain valve
EN-06167
(4)
EN-06158
EN(H4SO)(diag)-15
ENGINE (DIAGNOSTICS)
(2)
(4)
(3)
(4) Drain filter
(2)
(1)
EN-06228
EN-06157