Paccar

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. This fault code becomes active whenever the ECM detects a short circuit to ground or high current in the electric lift pump circuit. Causes for this fault code are a short circuit to ground or low resistance (lift pump partially shorted). During cold weather, gelled fuel can plug the lift pump and cause this fault code. Listen to the lift pump to be sure it is running...

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. Use the corresponding Troubleshooting and Repair Manual for the engine being serviced. Possible causes: 1)EGR valve position sensor wiring shorted to ground, open circuit, or shorted to power supply2)Loss of the EGR valve position sensor supply voltage or the ground circuit.3)Fuel Injector wiring harness shorted to ground, open circuit, or shorted to power supply. Possible repairs: 1)Replace the ECM.2)Replace the engine harness.3)Replace the EGR valve motor. PACCAR...

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)An open return circuit in the engine harness, connectors, or sensor2)A signal wire shorted to sensor supply or battery voltage3)A damaged EGR differential pressure sensor. Possible repairs: 1)Replace the EGR valve delta pressure sensor.2)Repair or replace the engine harness.3)Replace the ECM. PACCAR PX-8 CM2150 (2007-09) Fault Code: 2272 PID: 27 SPN: 27 FMI: 4 EGR Valve Position Circuit – Voltage Below Normal or Shorted to...

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)A signal circuit open or shorted to ground in the engine harness or sensor2)A supply wire open or shorted to ground3)A malfunctioning EGR differential pressure sensor. Possible repairs: 1)Replace the ECM.2)Replace the EGR valve delta pressure sensor.3)Replace the engine harness. Refer to Procedure 019-043 (Engine Wiring Harness) in Section 19.4)Repair the OEM harnessVerify the electronic control module (ECM) calibration is correct. Check the calibration revision...

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. When the engine has taken the necessary action to reduce the turbocharger speed, this fault code is logged. This fault code is for information only and no repairs are necessary. The engine can possibly be derated when operating near the maximum turbocharger speed limits. No repair action is necessary. PACCAR PX-8 CM2150 (2007-09) Fault Code: 2274 PID: 411 SPN: 411 FMI: 4 Exhaust Gas Recirculation Valve Delta...