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

DTC DETECTING CONDITION CHART

ITEM	DETECTING CONDITION	POSSIBLE CAUSE
DTC Strategy	Check signal oscillations	Contact resistance in connectors Faulty FTPS
Enable Conditions	Minimum time in part load: 90 sec. Vehicle speed once above threshold: 45km/h (28mph)
Threshold Value	Difference between max./min. voltage < 0.015V
Diagnostic Time	Immediate
Fail Safe	EVAP. System monitoring is inhibited Fuel Tank Pressure Sensor monitoring is inhibited Canister close valve monitoring is inhibited