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Home >> Subaru >> 2021 >> Crosstrek Sport >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 32 (Engine Control System (HEV) (Diagnostics) (2 Of 4)) >> Diagnostic Procedure With Diagnostic Trouble Code (DTC) >> DTC P04EC: EVAP System Large Leak Detected - Fuel Tank Side >> General Description >> Diagnostic Method >> < Mode A (vacuum pump operation confirmation and characteristics stability)>

< Mode A (vacuum pump operation confirmation and characteristics stability)>

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

Detect the vacuum pump operation trouble.

Judge as NG when the following conditions are established.

Judge as OK if the following conditions are not established, and warm up for five minutes to stabilize the vacuum pump characteristics.

JUDGMENT VALUE SPECIFICATIONS

Malfunction Criteria Threshold Value DTC
Pressure sensor output value More than -224Pa
(-1.68 mmHg, -0.1 inHg)		 P2404
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