Cumminz

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. This fault code can be caused by a failed or damaged injector causing continuous injection. If an injector nozzle is fractured or stuck open, continuous fueling will occur in that cylinder. If this condition occurs, an audible engine knock will be present, and the engine may stall and not start. In addition, low fuel rail pressure and excessive exhaust smoke will be present during...

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. This fault code can be caused by a failed or damaged injector causing continuous injection. If an injector nozzle is fractured or stuck open, continuous fueling will occur in that cylinder. If this condition occurs, an audible engine knock will be present, and the engine may stall and not start. In addition, low fuel rail pressure and excessive exhaust smoke will be present during...

Cummins ISB CM850 (2003-06) Fault Code: 115 PID: 190 SPN: 612 FMI: 2 Engine Magnetic Crankshaft Speed/Position Lost Both of Two Signal – Data Erratic, Intermittent, or Incorrect. The ECM has detected that the primary engine speed sensor and the backup engine speed sensor signals are reversed. The main engine speed sensor (crankshaft position sensor) and the backup engine speed sensor (camshaft position sensor) are located in close proximity to one another. The same sensor is used in both locations. (Connector key is the same.) A P-clip on the engine wiring harness prohibits the harness connectors from being connected to...

Cummins ISB CM850 (2003-06) Fault Code: 122 PID: 102 SPN: 102 FMI: 3 Intake Manifold Pressure Sensor Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage detected at the intake manifold pressure circuit. The intake manifold pressure sensor shares SUPPLY and RETURN wires in the engine harness with other sensors. Opens and shorts in the engine harness can cause multiple fault codes to be active. Before troubleshooting Fault Code 122, check for multiple faults. Possible causes: 1)Open return circuit in the engine harness, connectors, or sensor2)SIGNAL wire shorted to sensor supply or battery voltage. The sensor...

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). This fault code is caused by an internal failure of the EGR valve position sensor. This failure causes erratic readings of EGR valve position. Possible repairs: 1)Replace the EGR position sensor.