PACCAR PX-6 CM2150 (2007-09) Fault Code: 499 PID: 98 SPN: 98 FMI: 4– ⛽ Diezel365
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PACCAR PX-6 CM2150 (2007-09) Fault Code: 499 PID: 98 SPN: 98 FMI: 4 Engine Oil Level Sensor Circuit – Voltage Below Normal or Shorted to Low Source. The engine oil level sensor has detected an internal failure.

Posted by Diezel Solutions on

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, recalibrate the ECM.

Possible causes:

1)Open or short circuit internally to the oil level sensor
2)A malfunctioning oil level sensor.

Possible repairs:

1)Replace the oil level sensor.
2)The removal and installation of the connector may correct the problem.

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PACCAR PX-6 CM2150 (2007-09) Fault Code: 449 (ISC/ISL) PID: 94 SPN: 157 FMI: 0 Injector Metering Rail Number 1 Pressure – Data Valid But Above Normal Operating Range – Most Severe Level. The ECM has detected that fuel pressure in the fuel rail is higher than the fuel pressure relief valve.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 449 (ISB/QSB3.3) PID: 94 SPN: 157 FMI: 0 Injector Metering Rail Number 1 Pressure – Data Valid But Above Normal Operating Range – Most Severe Level. The ECM has detected that fuel pressure in the fuel rail is higher than the fuel pressure relief valve.