Subaru IMPREZA 2002 Service Manual page 528

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
AV:DTC PO451
-
EVAPORATIVE EMISSION CONTROL SYSTEM PRESSURE
DTC DETECTING CONDITION:
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(S0HC)-43, OP-
ERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(S0HC)-40, OPERATION, Inspec-
tion Mode.>.
WIRING DIAGRAM:
SENSOR RANGE/PERFORMANCE PROBLEM
Two consecutive driving cycles with fault
FUELTANK
PRESSURE
n
SENSOR
EN1095
EN(S0HC)-204