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PACCAR PX-8 CM2150 (2007-09) Fault Code: 1962 PID: SID 027 SPN: 641 FMI: 0 VGT Actuator Driver Over Temperature (Calculated) – Data Valid but Above Normal Operational Range – Least Severe Level. High Internal VGT actuator temperature has been detected.
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 will log when the internal temperature of the VGT actuator exceeds 125°C [257°F].
This fault code will be inactive when the vehicle is in the shop because the VGT actuator temperature has cooled down.
Troubleshoot multiple inactive counts of this fault code as an active fault code.
Also check for exhaust leaks blowing on the VGT actuator. Repair any external leaks.
Possible repairs:
1)Repair or replace the blocked coolant line.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 1943 PID: SPN: 3555 FMI: 1 Ambient Air Density – Data Valid but Below Normal Operational Range – Least Severe Level. Engine torque has been reduced because the vehicle was operating at a high altitude condition.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 1942 PID: 101 SPN: 101 FMI: 2 Crankcase Pressure – Data Erratic, Intermittent, or Incorrect. The ECM has detected that the crankcase pressure signal is not changing with engine operating conditions.
PACCAR PX-8 CM2150 (2007-09) Fault Code: 1938 PID: SPN: 3597 FMI: 1 ECU Power Output Supply Voltage 1 – Data Valid but Below Normal Operational Range – Moderately Severe Level. Low battery voltage detected by the VGT actuator.
PACCAR PX-8 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-8 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-8 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.