Subaru 2002 IMPREZA Service Manual page 324

DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
E: DTC PO101
-
MASS AIR FLOW SENSOR CIRCUIT RANGE/PERFORMANCE
PROBLEM (HIGH INPUT)
-
DTC DETECTING CONDITION:
Two consecutive driving cycles with fault
TROUBLE SYMPTOM:
Erroneous idling
Engine stalls.
Poor driving performance
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:
BATTERY
SBF-5 3 c
MASS AIR FLOW AND
1
INTAKE A I Z E R A T U R E
1
ECM
r
EN1 145
EN(D0HC TURBO)-I00