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Home >> Alfa Romeo >> 2019 >> Giulia Base, AWD >> Repair and Diagnosis >> Engine Performance >> System >> 2.0L - DTCS P0691-00 To P110F-00 >> DTC Troubleshooting >> P107A-00-Fuel Rail Pressure Sensor 2 Out Of Range Low >> Diagnostic Test

Diagnostic Test

  1. CHECK FOR AN ACTIVE DTC 
    1. Turn the ignition on.
    2. With the scan tool, read and record DTCs and Freeze Frame data on the repair order.

      Is the DTC active or pending?

      Yes 

      • Go To  2

      No 

  2. CHECK FOR HIGH RESISTANCE IN THE (K179) FUEL RAIL PRESSURE 1 SIGNAL CIRCUIT 
    1. Turn the ignition off.
    2. Disconnect the FRPS 2 harness connector.
    3. Disconnected PCM C2 harness connector.
    4. Measure the resistance of the (K179) Fuel Rail Pressure 1 Signal circuit between the FRPS 2 harness connector and the PCM C2 harness connector.

      Is the resistance below 3.0 Ohms?

      Yes 

      • Go To  3

      No 

  3. CHECK FOR HIGH RESISTANCE IN THE (K917) SENSOR GROUND CIRCUIT 
    1. Measure the resistance of the (K917) Sensor Ground circuit between the FRPS 2 harness connector and the PCM C2 harness connector.

      Is the resistance below 3.0 Ohms?

      Yes 

      No