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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 753 (Engine Controls - Powertrain DTC Charts & Descriptions - CNG, Flex-Fuel & Gasoline) >> Diagnostic Trouble Code (DTC) Charts >> P0193: Fuel Rail Pressure (FRP) Sensor Circuit High Input

P0193: Fuel Rail Pressure (FRP) Sensor Circuit High Input

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P0193 - FUEL RAIL PRESSURE (FRP) SENSOR CIRCUIT HIGH INPUT

Description:  The comprehensive component monitor (CCM) monitors the FRP sensor circuit to the PCM for high voltage. If voltage exceeds a calibrated limit for a calibrated amount of time during testing, the test fails.
Possible Causes: 
  • FRP signal shorted to VREF or VPWR.
  • FRP signal open (gasoline only).
  • Low fuel pressure (NG only).
  • Damaged FRP sensor.
  • Damaged PCM.
  • High fuel pressure (caused by a damaged fuel pressure regulator) (NG).
Diagnostic Aids:  The FRP signal high condition can be caused by any number of conditions, including a short on FRP signal to VREF, a more positive voltage level or an open FRP signal or signal return. Note the FRP signal line is pulled up by the PCM and VREF at the sensor and downward by the sensor through SIGRTN.
Application  Key On Engine Off  Key On Engine Running  Continuous Memory 
Fuel Rail Pressure Temperature (FRPT) Sensor GO to PINPOINT TEST DD: FUEL RAIL PRESSURE (FRP), FUEL RAIL TEMPERATURE (FRT) AND FUEL RAIL PRESSURE TEMPERATURE (FRPT) SENSORS Step 50. GO to PINPOINT TEST DD: FUEL RAIL PRESSURE (FRP), FUEL RAIL TEMPERATURE (FRT) AND FUEL RAIL PRESSURE TEMPERATURE (FRPT) SENSORS Step 50. GO to PINPOINT TEST DD: FUEL RAIL PRESSURE (FRP), FUEL RAIL TEMPERATURE (FRT) AND FUEL RAIL PRESSURE TEMPERATURE (FRPT) SENSORS Step 50.
Fuel Rail Pressure (FRP) Sensor ONLY GO to PINPOINT TEST DD: FUEL RAIL PRESSURE (FRP), FUEL RAIL TEMPERATURE (FRT) AND FUEL RAIL PRESSURE TEMPERATURE (FRPT) SENSORS Step 9. GO to PINPOINT TEST DD: FUEL RAIL PRESSURE (FRP), FUEL RAIL TEMPERATURE (FRT) AND FUEL RAIL PRESSURE TEMPERATURE (FRPT) SENSORS Step 9. GO to PINPOINT TEST DD: FUEL RAIL PRESSURE (FRP), FUEL RAIL TEMPERATURE (FRT) AND FUEL RAIL PRESSURE TEMPERATURE (FRPT) SENSORS Step 9.
Fuel Rail Pressure AND Fuel Rail Temperature (FRT) Sensors GO to PINPOINT TEST DD: FUEL RAIL PRESSURE (FRP), FUEL RAIL TEMPERATURE (FRT) AND FUEL RAIL PRESSURE TEMPERATURE (FRPT) SENSORS Step 9. GO to PINPOINT TEST DD: FUEL RAIL PRESSURE (FRP), FUEL RAIL TEMPERATURE (FRT) AND FUEL RAIL PRESSURE TEMPERATURE (FRPT) SENSORS Step 9. GO to PINPOINT TEST DD: FUEL RAIL PRESSURE (FRP), FUEL RAIL TEMPERATURE (FRT) AND FUEL RAIL PRESSURE TEMPERATURE (FRPT) SENSORS Step 9.
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