Impreza WRX F4-2.0L DOHC Turbo (2004)
Fuel Tank Pressure Sensor: Description and Operation
Fuel Tank Pressure Sensor
FUEL TANK PRESSURE SENSOR
The fuel tank pressure sensor is installed on the top of the fuel tank and measures the pressure in the fuel tank.
The measured pressure is converted into an electrical signal and sent to the ECM for diagnosis of the evaporative emission control system.
