Subaru FORESTER 2001 Service Manual page 197

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
Engine (Diagnostics)
AN: DTC P0420 — CATALYST SYSTEM EFFICIENCY BELOW THRESHOLD
—
S088521B46
¼ DTC DETECTING CONDITION:
¼ Two consecutive driving cycles with fault
¼ TROUBLE SYMPTOM:
¼ Engine stalls.
¼ Idle mixture is out of specifications.
CAUTION:
After repair or replacement of faulty parts, conduct Clear Memory Mode <Ref. to EN(DOHC TURBO)-
47, OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(DOHC TURBO)-44, Inspec-
tion Mode.>.
¼ WIRING DIAGRAM:
EN(DOHC TURBO)-196
S2M2196