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P0192 – Fuel Rail Pressure Sensor A Circuit Low

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P0192 – Fuel Rail Pressure Sensor A Circuit Low
Description:                 The comprehensive component monitor (CCM) monitors the fuel rail pressure (FRP) sensor circuit to the powertrain control module (PCM) for low voltage. The test fails if the voltage falls below a calibrated limit for a calibrated amount of time during testing.
Possible Causes:       
 
FRP signal short to SIG RTN or PWR GND
Damaged FRP sensor
Diagnostic Aids:          A FRP parameter identification (PID) value during ignition ON, engine OFF or ignition ON, engine running less than 0.3 volt indicates a concern is present.
Related Topics  P011E - Engine Coolant Temperature 1/Ambient Air Temperature Correlation
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