DTC P0192 Fuel Rail Pressure Sensor Circuit Low Bank 1: Notes

DTC DETECTING CONDITION:

Immediately at fault recognition

TROUBLE SYMPTOM:

Improper idling
Poor driving performance
CAUTION:
- After servicing or replacing faulty parts, perform Clear Memory Mode <Ref. to OPERATION , Clear Memory Mode.>, and Inspection Mode <Ref. to PROCEDURE , Inspection Mode.>.
- Use the check board when measuring the ECM terminal voltage and resistance.

WIRING DIAGRAM:

Engine Electrical System <Ref. to WIRING DIAGRAM , Engine Electrical System.>

Fig 1: Fuel Rail Pressure Sensor Circuit Range/Performance Bank 1 Wiring Diagram

Courtesy of SUBARU OF AMERICA, INC.

Step	Check	Yes	No
1 CHECK HARNESS BETWEEN ECM AND FUEL PRESSURE SENSOR CONNECTOR. Turn the ignition switch to OFF. Disconnect the connector from ECM. Disconnect the connector from the fuel pressure sensor. Measure the resistance between the ECM connector and engine ground. Connector & terminal (E158) No. 6 - Engine ground:	Is the resistance 1 MΩ or more?	Replace the fuel pressure sensor. <Ref. to Fuel Pressure Sensor .>	Repair the ground short circuit of harness between ECM connector and fuel pressure sensor connector.