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Home >> Subaru >> 2017 >> Legacy 2.5i Limited >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 14 (Engine Control System (Diagnostics) (P0161 To P0685) (H6DO)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0451 EVAP System (CPC) Pressure Sensor/Switch Circuit Range/Performance >> Diagnostic Method

Diagnostic Method

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

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
|Evaporative Leak Check Module 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.