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Home >> Subaru >> 2016 >> Crosstrek Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (Except Hybrid) (2 Of 3) >> DTC P0451 EVAP System (CPC) Pressure Sensor/Switch Circuit 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 SPECIFICATION

Malfunction Criteria Threshold Value
Absolute value  
(ELCM pressure sensor output value - Intake air pressure at ignition switch ON) > 4.7 kPa (35.5 mmHg, 1.4 inHg)

Time Needed for Diagnosis:  328 ms

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

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