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.