Cummins ISL 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.
Cummins ISL 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.
This fault code can be caused by a failed or damaged injector causing continuous injection into the cylinder. Progressive cylinder damage may occur if the engine is operated for an extended period of time with this condition. If a failed injector is found to be the cause of this fault code, the cylinder liner and piston must be inspected for progressive damage.
If an injector nozzle is fractured or stuck, continuous fueling will occur in that cylinder. If this condition occurs, the engine will typically die and not start. There will be exhaust smoke during cranking and no fuel rail pressure will be developed during cranking. Fault Code 2215 will be active during cranking if this condition exists.
Possible repairs:
1)A stuck open injector nozzle has been detected. Replace the fuel injector.
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