Cummins ISB CM850 (2003-06) Fault Code: 1229 PID: SID 27 SPN: 2795 FMI: 2 VGT Position Sensor - Data erratic, intermittent, or incorrect. Intermittent variable geometry turbocharger (VGT) position information is being received by the electronic control module (ECM).

This fault code is caused by an internal failure of the variable geometry turbocharger (VGT) position sensor. This failure causes erratic readings of variable geometry turbocharger (VGT) position.

Possible repairs:

1)Replace the turbocharger position sensor.
2)Replace the ECM.

Cummins ISB CM850 (2003-06) Fault Code: 1228 PID: 27 SPN: 27 FMI: 2 EGR Valve Position - Data erratic, intermittent, or incorrect. Intermittent EGR position information is being received by the electronic control module (ECM).

Cummins ISB CM850 (2003-06) Fault Code: 1145 PID: SID 6 SPN: 656 FMI: 7 Injector Solenoid Driver Cylinder 6 - Mechanical System Not Responding Properly or Out of Adjustment. Unintended fueling detected in cylinder Number 6.

Cummins ISB CM850 (2003-06) Fault Code: 1144 PID: SID 5 SPN: 655 FMI: 7 Injector Solenoid Driver Cylinder 5 - Mechanical System Not Responding Properly or Out of Adjustment. Unintended fueling detected in cylinder Number 5.

Cummins ISB CM850 (2003-06) Fault Code: 1143 PID: SID 4 SPN: 654 FMI: 7 Injector Solenoid Driver Cylinder 4 - Mechanical System Not Responding Properly or Out of Adjustment. Unintended fueling detected in cylinder number 4.

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