P0452 SATURN - Fuel Tank Pressure Sensor Circuit Low Voltage
- Fuel Tank Pressure Sensor harness is open or shorted
- Fuel Tank Pressure Sensor circuit poor electrical connection
- Faulty Fuel Tank Pressure Sensor
When is the code detected?
- Engine Light ON (or Service Engine Soon Warning Light)
P0452 SATURN Description
The fuel tank pressure sensor signal voltage to VCM varies from a minimum of about 0.1 volts with pressure in the fuel tnk to greater than 4.0 volts with high vacuum in fuel tank.
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