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Home >> Subaru >> 2017 >> WRX Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (P0171 To P0685) (2.0L) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0441 EVAP System (CPC) Incorrect Purge Flow >> Execution Condition

Execution Condition

Secondary parameters Execution condition
(Evaporative Leak Check Module switching valve for time) = Close < 120 s
Purge control duty ratio > 0%
Precondition
(Conditions to close the switching valve of ELCM intrusively):
Battery voltage
≥ 10.9 V
Barometric pressure ≥ 75.06 kPa (563.1 mmHg, 22.2 inHg)
Integrated value of calculated purge airflow since engine start ≥ 72 g (1)
Barometric pressure - Manifold absolute pressure ≥ 10 kPa (75 mmHg, 2.9 inHg)
((Fuel system status = Fuel Cut for time) > 1 s
followed by Fuel system status) Fuel Cut
Ambient air temperature ≥ -25°C (-13°F)
(1) It takes approximately 2 min at 40 mph.