Subaru IMPREZA GD 2007 Series Manual page 1544

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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
ENGINE (DIAGNOSTICS)
BP:DTC P0456 EVAPORATIVE EMISSION CONTROL SYSTEM LEAK DETECTED
(VERY SMALL LEAK)
DTC DETECTING CONDITION:
• Detected when two consecutive driving cycles with fault occur.
• GENERAL DESCRIPTION <Ref. to GD(STI)-153, DTC P0456 EVAPORATIVE EMISSION CONTROL
SYSTEM LEAK DETECTED (VERY SMALL LEAK), Diagnostic Trouble Code (DTC) Detecting Criteria.>
TROUBLE SYMPTOM:
• Fuel odor
• There is a hole of more than 0.5 mm (0.020 in) dia. in evaporation system or fuel tank.
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)-213