Genuine Ford Excursion Fuel Pressure Sensor

Ford Excursion Fuel Pressure Sensor Parts Questions & Experts Answers

• Fuel Tank Pressure Sensor Assembly
  XS4Z-9C052-AA
  Q: What is the purpose of the fuel tank pressure (FTP) sensor on Ford Excursion?

  A: The fuel tank pressure (FTP) sensor is used to monitor the fuel tank pressure or vacuum during the OBD-II test portion for emissions integrity. This test scans various sensors and output actuators to detect abnormal amounts of fuel vapors that may not be purging into the canister or the intake system for recycling. The FP sensor helps the PCM monitor this pressure differential (pressure vs. vacuum) inside the fuel tank. A problem in the fuel tank pressure sensor circuit will set a diagnostic trouble code. Make sure the ignition key is in the OFF position. Remove the fuel tank. Push down and rotate the fuel tank pressure sensor counterclockwise. Remove the sensor from the fuel tank. Installation is the reverse of removal. Be sure to install a new gasket.