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PACCAR PX-8 CM2150 (2007-09) Fault Code: 428 PID: 97 SPN: 97 FMI: 3 Water-in-Fuel Indicator Sensor Circuit – Voltage Above Normal or Shorted to High Source. High voltage detected at the water-in-fuel circuit.

Verify the electronic control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe™ Online for applicable fixes to the calibration stored in the ECM. If necessary, calibrate the ECM.

Possible causes:

1)Open return or signal circuit in the harness, connectors, or sensor
2)Signal wire shorted to sensor supply or battery voltage.

Possible repairs:

1)Clean the connector and pins.
2)Replace the water-in-fuel sensor.
3)The removal and installation of the connector may correct the fault.
4)Repair or replace the engine harness.
Replace the ECM.

PACCAR PX-8 CM2150 (2007-09) Fault Code: 427 PID: SID 231 SPN: 639 FMI: 9 J1939 Datalink – Abnormal Update Rate. Communication between the electronic control module (ECM) and another device on the SAE J1939 data link has been lost.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 418 PID: 97 SPN: 97 FMI: 0 Water-In-Fuel Indicator – Data Valid but Above Normal Operatibng Range – Least Severe Level. Water has been detected in the fuel filter.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 415 PID: 100 SPN: 100 FMI: 1 Engine Oil Rifle Pressure – Data Valid But Below Normal Operating Range – Most Severe Level. Oil pressure signal indicates oil pressure is below the engine protection critical limit.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 386 PID: SID 212 SPN: 3509 FMI: 3 Sensor Supply 1 Circuit – Voltage Above Normal or Shorted to High Source. High voltage detected at sensor supply number 1 circuit.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 352 PID: SID 212 SPN: 3509 FMI: 4 Sensor Supply 1 Circuit – Voltage Below Normal or Shorted to Low Source. Low voltage detected at sensor supply number 1 circuit.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 351 PID: SID 251 SPN: 627 FMI: 12 Injector Power Supply – Bad Intelligent Device or Component. The ECM measured injector boost voltage is low.