DTC P0454: - Evaporative Emission System Pressure Sensor/Switch Intermittent

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DTC P0454: - EVAPORATIVE EMISSION SYSTEM PRESSURE SENSOR/SWITCH INTERMITTENT

Description:	The fuel tank pressure changes greater than 14 inches of water in 0.10 seconds.
Possible Causes:	Intermittent open or short in the fuel tank pressure (FTP) sensor or the FTP sensor signal Contaminated or damaged sensor
Diagnostic Aids:	Monitor the FTP PID and note if it changes from above 15 inches of water to below minus (-) 15 inches of water often in 1 minute.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	-	-	GO to Pinpoint Test Z .