LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Subaru >> 2021 >> WRX Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (2.0L) (2 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0441: EVAP System (CPC) Incorrect Purge Flow >> Execution Condition
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Execution Condition

Secondary parameters Execution condition
Battery voltage ≥ 10.9 V
Barometric pressure ≥ 75.06 kPa (563 mmHg, 22.2 inHg)
Integrated purge gas amount since engine starting ≥ 20 g (0.71 oz)(1)
(Purge control duty ratio = 0% duration time ≥ 1.5 s
Purge control duty ratio from above) not equal 0%
Ambient air temperature ≥ -25°C (-13°F)
Time when the second purge valve control is OFF ≥ 1.5 s
Time when the evaporative system leak check module switching valve is closed < 25 s
(1) It is approximately 2 sec per the integration of purge to reach 1g at vehicle speed of 40 MPH.