Details On DTCs

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DTC P1450:00 (PCM, VIN Y) DETECTION CONDITION AND POSSIBLE CAUSE

DESCRIPTION	Evaporator system: abnormal negative pressure in fuel tank
DETECTION CONDITION	Determination conditions	Target negative pressure exceeding the specified time or more is generated from negative pressure inducted to the fuel tank by the operation of the purge solenoid valve after the fuel tank is sealed (CV solenoid valve ON).
	Preconditions	Period ignition is switched off before engine is started: 120 min or more Engine coolant temperature at engine start: 1.67-43.33 °C {35.1-109.9 °F}^1 Time elapsed from engine start: 5.5-90 min Fuel level in fuel tank: 10-90%^1 Desired ambient air temperature: 4.4-43.3 °C {40-109 °F}^1 Barometric pressure: 72.23 Pa {7.365 kgf/m² , 0.01048 psi} or more^1 Charging efficiency: 3-65%^1 Vehicle speed: 64-144.8 km/h {40.00-89.97 mph}^1 Purge flow amount: 15 l/min or more ^*1 : Standard can be verified by displaying PIDs using M-MDS
	Malfunction determination period	75 s period
	Drive cycle	2
	Self test type	CMDTC self test
	Sensor used	Fuel tank pressure sensor
FAIL-SAFE FUNCTION		Not applicable
VEHICLE STATUS WHEN DTCs ARE OUTPUT		Illuminates check engine light.
POSSIBLE CAUSE		Fuel tank pressure sensor malfunction Restriction between charcoal canister and release-side passage CV solenoid valve malfunction Charcoal canister malfunction Clogging between fuel tank and fuel tank pressure sensor Purge solenoid valve malfunction PCM malfunction