Cummins ISB CM850 (2003-06) Fault Code: 2345 (ISB) PID: 103 SPN: 103 FMI: 10 Turbocharger speed – invalid rate of change detected. The turbocharger speed sensor has detected an erroneous speed value.
This fault becomes active if the engine is running and the turbocharger speed signal rapidly changes faster than the capabilities of the turbocharger. This could be caused by a bent or missing compressor blade or a damaged compressor wheel.
Possible repairs:
1)Replace the turbocharger.
Cummins ISB CM850 (2003-06) Fault Code: 2322 PID: SID 64 SPN: 723 FMI: 2 Backup Engine Speed/Position Sensor Number 2 – Data Erratic, Intermittent, or Incorrect. Camshaft engine speed sensor intermittent synchronization.
Cummins ISB CM850 (2003-06) Fault Code: 2321 PID: 190 SPN: 190 FMI: 2 Engine Crankshaft Speed/Position – Data Erratic, Intermittent, or Incorrect. Crankshaft engine speed sensor intermittent synchronization.
Cummins ISB CM850 (2003-06) Fault Code: 2311 PID: SID 81 SPN: 633 FMI: 11 Fueling Actuator Number 1 Circuit Error Conditions Exists. Fuel pump actuator circuit resistance too high or too low.
Cummins ISB CM850 (2003-06) Fault Code: 2293 PID: SPN: FMI: 18 Fuel inlet meter device flow demand lower than expected – data valid but below normal operational range – moderately severe level. The flow demand is lower than expected.
Cummins ISB CM850 (2003-06) Fault Code: 2292 PID: SPN: FMI: 16 Fuel Inlet Meter Device – Data Valid but Above Normal Operational Range – Moderately Severe Level. The flow demand is higher than expected.
Cummins ISB CM850 (2003-06) Fault Code: 2274 PID: 411 SPN: 411 FMI: 4 EGR valve differential pressure sensor circuit – shorted low. Low signal voltage detected on the EGR valve differential pressure sensor circuit
