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 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