DTC P0451 EVAP. Emission System-Pressure Sensor Range / Performance: DTC Detecting Condition

DTC DETECTING CONDITION

Item		Detecting Condition	Possible cause
DTC Strategy		Continuously monitors the fuel tank pressure sensor output for a stuck condition	Hose between Canister and Tank is not connected. Faulty FTPS
Enable Conditions	Case 1	Engine Coolant Temperature ≥ 60 °C (Fully Warmed up state) 600rpm < Engine Speed < 3000rpm
Enable Conditions	Case 2	During the EVAP. Monitoring
Threshold value	Case 1	Pressure change in tank < 0.2 (0.05V)
Threshold value	Case 2	Before large leak monitoring has completed Pressure sensor is detected as stuck Pressure change in tank < 0.2 (0.05V)
Diagnosis Time		Continuous (Within 3min : Before EVAP. Monitoring has completed )
MIL On Condition		2 Driving Cycles