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Fuel Tank Pressure Sensor

The fuel tank pressure sensor reads pressure (both positive and negative) inside the fuel tank and transmits the information to the engine control computer.

Symptoms of a Bad or Failing Fuel Tank Pressure Sensor

  • Illumination of the Check Engine Light

Fuel Tank Pressure Sensor Related Repair Advice

  • By monitoring the fuel tank pressure under certain conditions, the engine control computer can determine if an evaporative system leak is present, such as a loose or faulty gas cap
  • Evap system diagnosis can be difficult and trouble codes can be triggered by sensors and components other than the fuel tank pressure sensor

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