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Home >> Subaru >> 2005 >> Outback R VDC Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 23 (Diagnostic Trouble Code (DTC) Detecting Criteria (H4DOTC)) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0442 Evaporative Emission Control System Leak Detected (Small Leak) >> Outline Of Diagnosis >> Mode table for Evaporative Emission Control System diagnosis

Mode table for Evaporative Emission Control System diagnosis

WARNING: This page is about a different variant/trim than selected.
MODE

Mode Normal conditions Diagnostic item DTC
Mode Z Nearly same as atmospheric pressure (equivalent pressure of 0 kPa (0 mmHg, 0 inHg)) CPC is judged to be open. P0457
Mode A Pressure is in proportion to amount of evaporative emission. -  
Mode B Negative pressure is formed due to intake manifold negative pressure Large leak P0457
Mode C Target pressure is reached. - -
Mode D Pressure change is small. EVAP system is judged to have large leak [1.0 mm (0.04 in)]. P0442