Subaru 2002 IMPREZA Service Manual page 408

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
~ ~~
AM:DTC PO328
-
KNOCK SENSOR CIRCUIT HIGH INPUT
-
DTC DETECTING CONDITION:
Immediately at fault recognition
TROUBLE SYMPTOM:
Poor driving performance
Knocking occurs.
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(D0HC TURBO)-
49, OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(D0HC TURBO)-46, Inspec-
tion Mode.>.
WIRING DIAGRAM:
KNOCK
SENSOR
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ECM
EN0975
EN(D0HC TURBO)-184