Subaru 2002 IMPREZA Service Manual page 370

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
W: DTC PO133
-
FRONT OXYGEN (NF) SENSOR CIRCUIT SLOW RESPONSE
DTC DETECTING CONDITION:
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:
-
Two consecutive driving cycles with fault
AIN RELAY BATTERY
I
R
FRONTOXYGEN
EN1 143
EN(D0HC TURBO)-146