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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.

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