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Fuel Tank Pressure Sensor: Description and Operation

Evaporative Emission System

Duratec Engine

Zetec Engine

Principles of Operation

Fuel Tank Pressure (FTP) Sensor
The fuel tank pressure sensor is used to measure the fuel tank pressure during the Evaporative Emissions monitor test. It is also used to control excessive fuel tank pressures by forcing the EVAP system to purge. The fuel tank pressure sensor is tank-mounted.