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Home >> Toyota >> 2007 >> Prius Base >> Repair and Diagnosis >> Engine Performance >> Engine Control System >> SFI System >> DTC P1455 Vapor Reducing Fuel Tank System Malfunction >> Typical Enabling Conditions
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Typical Enabling Conditions

TYPICAL ENABLING CONDITIONS

Monitor runs whenever following DTC not present None
Engine Running
ECT 4.4°C (40°F) or more
IAT 4.4°C (40°F) or more
EVAP control system pressure sensor malfunction Not detected
Purge VSV Not detected by scan tool
EVAP system check Not detected by scan tool
Battery voltage 11 V or higher
Purge duty cycle 15% or more