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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 2606 (Engine Controls - Powertrain DTC Charts And Descriptions (Hybrid)) >> Diagnostic Trouble Code (DTC) Charts and Descriptions >> DTC P0452: Evaporative Emission System Pressure Sensor/Switch Low

DTC P0452: Evaporative Emission System Pressure Sensor/Switch Low

WARNING: This page is about a different car, the 2011 Mercury Milan, 2011 Lincoln MKZ, 2011 Ford Fusion, 2010 Mercury Milan, and 2010 Ford Fusion. However, it is still accessible from the selected car via links, so may be relevant.
P0452 - EVAPORATIVE EMISSION SYSTEM PRESSURE SENSOR/SWITCH LOW

Description:  The powertrain control module (PCM) monitors the evaporative emission (EVAP) control system fuel tank pressure (FTP) sensor input signal to the PCM. The test fails when the signal average drops below a minimum allowable calibrated parameter.
Possible Causes: 
  • Contamination internal to the FTP sensor connector
  • FTP circuit short to GND or SIG RTN
  • Damaged FTP sensor
Diagnostic Aids:  An FTP voltage parameter identification (PID) reading less than 0.22 volt with the ignition on, engine off or ignition on, engine running, indicates a concern is present.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST HX .
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