PACCAR PX-8 CM2150 (2007-09) Fault Code: 2359 PID: 411 SPN: 411 FMI: 0 Exhaust Gas Recirculation Valve Differential Pressure – Data Valid But Above Normal Operating Range – Moderately Severe Level.

Verify that 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.

This diagnostic checks the reading of the differential pressure sensor when the EGR valve is closed. Since the EGR valve is closed, the reading of the EGR differential pressure should be 0. If the ECM detects a reading higher than expected with the EGR valve closed, this fault code is logged.

Possible causes:

1)A damaged EGR differential pressure sensor
2)A stuck open EGR valve
3)EGR differential pressure sensor flow port cross-drillings are plugged with soot.

Possible repairs:

1)Clean the EGR differential pressure sensor flow ports.
2)Replace the EGR valve.
3)Repair or replace the engine harness.
4)Replace the ECM.

PACCAR PX-8 CM2150 (2007-09) Fault Code: 2357 PID: SID 146 SPN: 2791 FMI: 7 EGR Valve Control Circuit – Mechanical System Not Responding Properly or Out of Adjustment. The EGR motor has exceeded the duty cycle limit, indicating a stuck open EGR valve.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 2351 PID: SID 146 SPN: 2791 FMI: 4 EGR Valve Control Circuit – Voltage Below Normal or Shorted to Low Source. Motor terminal or motor coil short circuit to ground or power supply has been detected by the ECM.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 2349 PID: SID 146 SPN: 2791 FMI: 5 EGR Valve Control Circuit – Current Below Normal or Open Circuit. Motor terminal or motor coil open circuit has been detected by the ECM.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 2347 PID: SPN: 2790 FMI: 0 Turbocharger Compressor Outlet Temperature (Calculated) – Data Valid but Above Normal Operational Range – Least Severe Level. High turbocharger compressor outlet air temperature has been calculated by the electronic control module (ECM).
PACCAR PX-8 CM2150 (2007-09) Fault Code: 2346 PID: SPN: 2789 0 Turbocharger Turbine Inlet Temperature (Calculated) – Data Valid but Above Normal Operational Range – Least Severe Level. Turbocharger turbine inlet temperature has exceeded the engine protection limit.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 2345 PID: 103 SPN: 103 FMI: 10 Turbocharger 1 Speed – Abnormal Rate of Change. The turbocharger speed sensor has detected an erroneous speed value.
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