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Home >> Ford >> 2000 >> Contour SE, 2.0 3, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1784 (Engine Controls - Powertrain DTC Charts And Descriptions (Except Diesel & Hybrid)) >> DTC Diagnosis >> P0454 - Evaporative Emission System Pressure Sensor/Switch Intermittent

P0454 - Evaporative Emission System Pressure Sensor/Switch Intermittent

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P0454 - EVAPORATIVE EMISSION SYSTEM PRESSURE SENSOR/SWITCH INTERMITTENT

Description:  The fuel tank pressure changes greater than 14 inches of water in 0.10 seconds.
Possible Causes: 
  • Intermittent open or short in the fuel tank pressure (FTP) sensor or the FTP sensor signal
  • Contaminated or damaged sensor
Diagnostic Aids:  Monitor the FTP PID and note if it changes from above 15 inches of water to below minus (-) 15 inches of water often in 1 minute.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All - - refer to PINPOINT TEST Z .
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