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Home >> Lincoln >> 2018 >> MKZ Select, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 2279 (Engine Controls - Powertrain DTC Charts & Descriptions (Except Diesel & Hybrid) - DTC P060A - P2005) >> Diagnostic Trouble Code (DTC) Charts And Descriptions >> P144C - EVAP System Purge Flow Performance During Boost

P144C - EVAP System Purge Flow Performance During Boost

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P144C - EVAP SYSTEM PURGE FLOW PERFORMANCE DURING BOOST

Description:  The EVAP check valve test is performed during minimal boost conditions, once per drive cycle, when entry conditions are met. This DTC sets when the fuel tank pressure exceeds a calibrated amount within a specified amount of time during the test.
Possible Causes: 
  • Restricted EVAP ejector connections at the intake air system
  • Stuck open EVAP check valve
  • Stuck closed EVAP check valve
  • Damaged EVAP ejector
  • Damaged EVAP check valve
Diagnostic Aids: 
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to Pinpoint Test HX .