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PACCAR PX-8 CM2150 (2007-09) Fault Code: 1883 PID: SID 324 SPN: 3251 FMI: 2 Aftertreatment Diesel Particulate Filter Differential Pressure Sensor – Data Erratic, Intermittent, or Incorrect.
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)Stuck in-range aftertreatment diesel particulate filter differential pressure sensor reading
2)High resistance in the aftertreatment diesel particulate filter differential pressure sensor signal or return wires
3)Plugged aftertreatment differential pressure sensor ports could cause this fault code if pressure is held in the port after the engine is turned off.
Possible reapirs:
1)Replace the aftertreatment diesel particulate filter differential pressure sensor.
2)Repair or replace the OEM harness.
3)Replace the ECM.v
PACCAR PX-8 CM2150 (2007-09) Fault Code: 1881 PID: SID 324 SPN: 3251 FMI: 4 Aftertreatment Particulate Filter Differential Pressure Sensor Circuit – Voltage Below Normal or Shorted to Low Source. Low signal voltage or open circuit detected at the aftertreatment differential pressure sensor circuit.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 1879 PID: SID 324 SPN: 3251 FMI: 3 Aftertreatment Particulate Filter Differential Pressure Sensor Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage detected at the aftertreatment differential pressure sensor circuit.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 1878 PID: SPN: 3245 FMI: 2 Aftertreatment Exhaust Gas Temperature 3 – Data Erratic, Intermittent, or Incorrect. The aftertreatment diesel particulate filter outlet temperature sensor is not changing with engine operating conditions.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 1877 PID: SPN: 3245 FMI: 4 Aftertreatment Exhaust Gas Temperature 3 Circuit – Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at the aftertreatment diesel particulate filter outlet temperature sensor circuit.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 1876 PID: SPN: 3245 FMI: 3 Aftertreatment Exhaust Gas Temperature 3 Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage or open circuit detected at the aftertreatment diesel particulate filter outlet temperature sensor circuit.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 1866 PID: 411 SPN: 411 FMI: 2 Exhaust Gas Recirculation Valve Delta Pressure – Data Erratic, Intermittent, or Incorrect. An error in the EGR delta pressure signal was detected at initial key-on or the sensor failed the autozero test.