P018F

2017-10-10

Description:

  • Relief valve for high pressure in fuel system is frequently activated

Possible Symptoms:

  • Decrease in fuel economy due to inoperative intake air temperature sensor

  • Crank, but no start

  • Problems with a particular system indicating a possible communication loss in this area

  • Engine failure

Possible Causes:

  • Faulty fuel pressure sensor

  • Fuel pressure sensor harness is open or shorted

  • Fuel pressure sensor electrical circuit poor connection

  • Faulty Engine Control Module (ECM)

Related Parts:

  • Fuel Pressure Relief Sensor: Fuel Pressure Relief Sensor monitors any excess fuel taken in the fuel line that is returned back to the tank. Problems lead to engine misfire, poor fuel economy & poor acceleration

Possible Solutions:

  • Inspects the intake air temperature sensor and wiring for damages

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