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Home >> Subaru >> 2021 >> Ascent Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (2 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P04F0: EVAP System High Pressure Purge Line (CPC2) Performance >> General Description >> Execution Condition

Execution Condition

SECONDARY PARAMETERS AND EXECUTION CONDITION - P04F0

Secondary parameters Execution condition
<High pressure side pressure system>
Battery voltage
10.9 V or more
Barometric pressure 75.06 kPa (563.1 mmHg, 22.2 inHg) or more
Intake manifold absolute pressure -
Barometric pressure
30.05 kPa (225.4 mmHg, 8.9 inHg) or more
Ambient air temperature More than 4.4 °C (39.9°F)
Purge control duty ratio 40% or more
Elapsed time after the switching valve in the leak check valve assembly opened 2500 ms or more
SECONDARY PARAMETERS AND EXECUTION CONDITION - P04F1

Secondary parameters Execution condition
<Low pressure side pressure system>
Battery voltage
10.9 V or more
Barometric pressure 75.06 kPa (563.1 mmHg, 22.2 inHg) or more
Barometric pressure - Intake manifold absolute pressure 25.05 kPa (187.9 mmHg, 7.4 inHg) or more
Estimated ejector generation negative pressure 1.5 kPa (11.3 mmHg, 0.4 inHg) or less
Ambient air temperature More than 4.4 °C (39.9°F)
Purge control duty ratio 40% or more
Elapsed time after the switching valve in the leak check valve assembly opened 2500 ms or more