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 is logged when the voltage to the VGT actuator drops below +10-VDC. The VGT will still continue to respond to commands from the primary engine ECM.
Possible repairs:
1)Tighten the loose connections and clean the terminals.
2)Charge or replace the batteries.
3)Repair or replace the OEM power harness.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1922 PID: SID 324 SPN: 3251 FMI: 0 Aftertreatment Diesel Particulate Filter Differential Pressure – Data Valid But Above Normal Operating Range – Most Severe Level. The soot load of the aftertreatment diesel particulate filter has exceeded the recommended limits.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1921 PID: SID 324 SPN: 3251 FMI: 0 Aftertreatment Diesel Particulate Filter Differential Pressure – Data Valid But Above Normal Operating Range – Moderately Severe Level. The soot load of the aftertreatment diesel particulate filter has exceeded the recommended limits.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1911 (ISC/ISL) PID: 157 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 rail fuel is higher than the commanded pressure.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1911 (ISB/QSB3.3) PID: 157 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 rail fuel is higher than the commanded pressure.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1899 PID: 411 SPN: 411 FMI: 1 Exhaust Gas Recirculation (EGR) Valve Delta Pressure – Data Valid But Above Normal Operating Range – Moderately Severe Level. The EGR differential pressure sensor has detected low EGR gas flow or the EGR differential pressure reading is not valid for engine operating conditions.
PACCAR PX-6 CM2150 (2007-09) Fault Code: 1896 PID: SID 146 SPN: 2791 FMI: 13 EGR Valve Controller – Out of Calibration. The EGR valve has failed the automatic calibration procedure at initial key-on.