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Home >> Toyota >> 2007 >> Prius Touring >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> SFI System >> DTC P0446 Evaporative Emission Control System Vent Control Circuit >> Typical Enabling Conditions
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Typical Enabling Conditions

TYPICAL ENABLING CONDITIONS

Monitor runs whenever following DTC not present P0441: Purge VSV
P1450 - P1453: FTP sensor
Altitude Less than 2,400 m (8,000 ft.)
Battery voltage 11 V or more
IAT at engine start - ECT at engine start -7 to 11°C (-12.6 to 20°F)
ECT at engine start 4.4 to 35°C (40 to 95°F)
IAT at engine start 4.4 to 35°C (40 to 95°F)
Vehicle speed Constant between 45 and 130 km/h (28 and 80 mph)
Time after engine start Less than 30 minutes
HVECU OK
Fail-safe via HV ECU Not executed
Purge flow volume 0.08 g/sec. or more