Auto Systems and Repair: Fuel Tank Pressure Sensor

Symptoms of Wear or Failure

  • Illumination of the Check Engine Light

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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