Fuel Tank Pressure Sensor Replacement
What is a fuel tank pressure sensor?
The fuel tank pressure sensor helps control fuel vapor emissions by alerting the car's computer if there's drop in pressure.
How does the fuel tank pressure sensor work?
The sensor constantly reads pressure in the fuel tank, and is essential in testing the evaporative emissions (EVAP) system for leaks. The vehicle's computer expects a certain range of pressure in the fuel tank at any given time. If the sensor reports pressures that are unexpected, the computer will turn on the check engine light.
Common fuel tank pressure sensor symptoms
The most common symptom for a defective fuel tank pressure sensor is an illuminated Check Engine Light triggered by one or more evaporative system fuel tank pressure sensor related codes. Usually, there are no noticeable engine performance symptoms associated with a defective fuel tank pressure sensor.
What are the symptoms related to a bad fuel tank pressure sensor?
The check engine light will illuminate any time there is an EVAP problem. Also, in some models, there may be a popping sound accompanying the check engine light, as the leak detection pump continuously attempts to pressurize the fuel tank.
Can I drive with a fuel tank pressure sensor problem?
A vehicle with an EVAP system issue can be driven, but may get lower fuel mileage and run roughly. Also, a vehicle with an EVAP system issue won't pass standardized state or federal emission testing.