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Home >> Subaru >> 2015 >> Outback 2.5i >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Diagnostic Trouble Code (DTC) Detecting Criteria (H4DO) >> Diagnostic Trouble Code (DTC) Detecting Criteria >> DTC P0451 Evaporative Emission System Pressure Sensor/Switch Range/Performance >> Diagnostic Method

Diagnostic Method

If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

JUDGMENT VALUE

Malfunction Criteria Threshold Value
|ELCM pressure sensor output value - intake manifold pressure (absolute pressure) when ignition switch is ON| > 4732.9 Pa (35.5 mmHg, 1.4 inHg)

Time Needed for Diagnosis:  320 ms

Malfunction Indicator Light Illumination:  Illuminates when malfunction occurs in 2 continuous driving cycles.