Subaru IMPREZA GD 2007 Series Manual page 1548

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
BQ:DTC P0457 EVAPORATIVE EMISSION CONTROL SYSTEM LEAK DETECTED
(FUEL CAP LOOSE/OFF)
DTC DETECTING CONDITION:
• Detected when two consecutive driving cycles with fault occur.
• GENERAL DESCRIPTION <Ref. to GD(STI)-153, DTC P0457 EVAPORATIVE EMISSION CONTROL
SYSTEM LEAK DETECTED (FUEL CAP LOOSE/OFF), Diagnostic Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
• Fuel odor
• Fuel filler cap loose or lost
CAUTION:
After repairing or replacing the defective part, perform the Clear Memory Mode <Ref. to EN(STI)(di-
ag)-48, OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(STI)(diag)-39, PROCE-
DURE, Inspection Mode.>.
EN(STI)(diag)-217