Fuel Tank Pressure Sensor: Description and Operation

Pressure Sensor, EVAP (585)

Location
Pressure sensor, EVAP (585)

Main task
The pressure sensor is used for onboard diagnostics to detect leakage in the purge system.

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Connection















Based on the pressure difference between the tank and atmosphere, the pressure sensor yields a proportional voltage to control module pin 11(A). The pressure sensor value is adapted to 0 kPa when the ignition is switched on provided coolant temperature is less than 40 °C and fuel level is less than 50 litres.