Subaru 2002 Impreza - Page 367

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DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)
ENGINE (DIAGNOSTICS)
U:
DTC PO131 - FRONT OXYGEN (NF) SENSOR CIRCUIT RANGUPERFOR-
MANCE PROBLEM
(LOW INPUT) -
NOTE:
OXYGEN
(NF) SENSOR CIRCUIT RANGE/PERFORMANCE PROBLEM (HIGH INPUT) -, Diagnostic
Procedure with Diagnostic Trouble Code (DTC).>
I
For the diagnostic procedure, refer to DTC P0132. <Ref. to EN(D0HC TURBO)-144, DTC PO1 32 - FRONT
EN(D0HC TURBO)-143