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PACCAR PX-6 CM2150 (2007-09) Fault Code: 2374 PID: 131 SPN: 1209 FMI: 4 Exhaust Gas Pressure Sensor Circuit – Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at the exhaust gas pressure 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, recalibrate the ECM.
The exhaust gas pressure sensor shares supply and return wires in the engine harness with other sensors. Opens and shorts in the engine harness can cause multiple fault codes to be active.
Possible causes:
1)A signal circuit open or shorted to ground in the engine harness or sensor
2)A supply wire open or shorted to ground.
Possible repairs:
1)Replace the exhaust gas pressure sensor.
2)Replace the ECM.
3)Repair or replace the engine harness.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 2373 PID: 131 SPN: 1209 FMI: 3 Exhaust Gas Pressure Sensor Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage detected at the exhaust gas pressure circuit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 2367 PID: SID 80 SPN: 1073 FMI: 3 Engine Brake Actuator Driver Output 2 Circuit – Voltage Above Normal or Shorted to High Source. Open circuit or high voltage detected at the engine brake solenoid number 2 signal circuit.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 2363 PID: SID 029 SPN: 1073 FMI: 4 Engine Brake Actuator Driver Output 2 Circuit – Voltage Below Normal or Shorted to Low Source. Low voltage detected at the engine brake solenoid number 2 signal circuit.
PACCAR PX-6 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. The EGR differential pressure sensor has detected high EGR gas flow, or the EGR differential pressure reading is not valid for engine operating conditions.
PACCAR PX-6 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-6 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.