Normality Judgment

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Make OK judgment in 3 seconds after Mode Z started, and change to Mode A if OK.

Judgment Value

JUDGMENT VALUE REFERENCE (NORMALITY)

Malfunction Criteria	Threshold Value	DTC
(Tank pressure when Mode Z started) - (Tank pressure when Mode Z finished)	</= 0.4 kPa (3 mmHg, 0.12 inHg)	P0457

Normal Operation

Fig 1: Purge Control Solenoid Valve CPC Graph

Courtesy of SUBARU OF AMERICA, INC.

With judge normal when calculation is completed.