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DTC P228F - Fuel Pressure Regulator 1 Exceeded Learning Limits - Too High

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P228F - FUEL PRESSURE REGULATOR 1 EXCEEDED LEARNING LIMITS - TOO HIGH

Description:  This DTC sets when the fuel rail pressure is 20% greater than the calculated threshold.
Possible Causes: 
  • Biased fuel rail pressure (FRP) sensor
  • Engine mechanical concern
  • Fuel pressure control valve sticking
Diagnostic Aids:  The FRP sensor and fuel pressure control valve values can be monitored by accessing the FRP_A PID and the F_PCV PID.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
All GO to PINPOINT TEST M .