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Home >> Subaru >> 2021 >> WRX STI >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics) (2.5L) (2 Of 4) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P0455: EVAP System (CPC) Leak Detected (Large Leak) >> Execution Condition
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Execution Condition

Secondary parameters Execution condition
Battery voltage ≥10.9V
Barometric pressure ≥75.1 kPa
(563 mmHg, 22.2 inHg)
Activation of soaking timer Completed
Intake air temperature ≥4.4°C (39.9°F)
Engine coolant temperature ≥4.4°C (39.9°F) and < 45°C (113°F)
Accumulated purge amount during previous driving cycle ≥ Value of Map 1
MAP 1 SPECIFICATION

Engine coolant temperature when
ECM is activated after soak time °C (°F)
0 (32) 30 (86) 35 (95) 40 (104) 45 (113)
Accumulated purge amount during previous driving cycle (g (oz)) 128 (4.51) 128 (4.51) 384 (13.54) 640 (22.57) 896 (31.6)