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Home >> Subaru >> 2019 >> WRX Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Diagnostics) (Except For STI) (2 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P04F0: EVAP System High Pressure Purge Line (CPC2) Performance >> Execution Condition

Execution Condition

Secondary parameters Execution condition
<Phase1>
Battery voltage
≥ 10.9 V
Barometric pressure ≥ 75.06 kPa (563 mmHg, 22.2 inHg)
Integrated purge air amount since engine starting ≥ 72 g (2.54 oz)(1)
Purge control duty ratio = 0% duration time ≥ 1 s
Ambient air temperature > 4.4°C (39.9°F)
and
< 35°C (95°F)
Fuel level ≥ 9 L (2.38 US gal, 1.98 Imp gal)
Cumulative time for establishment of the following conditions ≥ 6 s
  • Intake air amount per 1 second
> Map
  • Second purge valve control
Open
<Phase2>
Battery voltage
≥ 10.9 V
Barometric pressure ≥ 75.06 kPa (563.1 mmHg, 22.2 inHg)
Fuel level ≥ 9 L (2.38 US gal, 1.98 Imp gal)
Establishing time of Phase 2 ≥ 20 s
(1) It is approximately 2 sec per the integration of purge to reach 1g at vehicle speed of 40 MPH.
MAP SPECIFICATION

Fuel level (L (US gal, Imp gal)) 9 (2.38, 1.98) 10 (2.64, 2.2) 20 (5.28, 4.4) 30 (7.93, 6.6) 40 (10.57, 8.8) 50 (13.21, 11) 60 (15.85, 13.2)
Intake air amount per 1 second (g/s) 80 80 60 60 60 60 60