Cumminz

Cummins ISB CM850 (2003-06) Fault Code: 1845 PID: SPN: 97 FMI: 3 Water-in-Fuel Indicator Sensor Circuit – Voltage Above Normal or Shorted to High Source (For Generator Engines Only). High voltage detected at the water-in-fuel indicator circuit. The water-in-fuel sensor is located in the Stage 1 filter housing. It is a serviceable part. Possible causes: 1)Open return or signal circuit in the harness, connectors, or sensor.2)SIGNAL wire shorted to sensor supply or battery voltage. Possible repairs: 1)Replace the damaged section of harness or damaged water-in-fuel indicator sensor.2)Replace the water-in-fuel indicator sensor.3)The removal and installation of the connector may correct the...

Cummins ISB CM850 (2003-06) Fault Code: 1846 PID: SPN: 97 FMI: 4 Water-in-Fuel Indicator Sensor Circuit – Voltage Below Normal or Shorted to Low Source (For Generator Engines Only). Low voltage detected at the water-in-fuel indicator circuit. The water-in-fuel indicator sensor is integrated into the bottom of the suction fuel filter. The first stage fuel filter is located on the intake side of the engine. Shop TalkThe water-in-fuel sensor is located in the Stage 1 filter housing. It is a serviceable part. Possible causes: 1)SIGNAL circuit shorted to ground in the harness, sensor, or connector. Possible repairs: 1)Replace the damaged...

Cummins ISB CM850 (2003-06) Fault Code: 1848 PID: 105 SPN: 105 FMI: 10 Intake Manifold 1 Temperature ? Abnormal Rate of Change. The intake manifold temperature sensor is not responding to a change in engine operating conditions. The engine intake manifold temperature is monitored during engine warm-up. If the engine intake manifold temperature reading is not changing to match the engine operating conditions, the intake manifold temperature sensor is then determined to be stuck in-range and this fault code is logged. The ECM must not see engine speed for a period of eight hours before this diagnostic will run. Possible...

Cummins ISB CM850 (2003-06) Fault Code: 1849 PID: SPN: 3241 FMI: 10 Exhaust Gas Temperature 1 ? Abnormal Rate of Change. The catalyst inlet temperature sensor is not responding to a change in engine operating conditions. The exhaust gas temperature 1 is monitored during engine warm-up. If the exhaust gas temperature 1 reading is not changing to match the engine operating conditions, the exhaust gas temperature 1 sensor is then determined to be stuck in-range and this fault code is logged. The ECM must not see engine speed for a period of eight hours before this diagnostic will run. Possible...

Cummins ISB CM850 (2003-06) Fault Code: 1851 PID: SPN: 3249 FMI: 10 Exhaust Gas Temperature 2 ? Abnormal Rate of Change. The catalyst outlet temperature sensor is not responding to a change in engine operating conditions. The exhaust gas temperature #2 is monitored during engine warm-up. If the exhaust gas temperature 2 reading is not changing to match the engine operating conditions, the exhaust gas temperature 2 sensor is then determined to be stuck in-range and this fault code is logged. The ECM must not see engine speed for a period of eight hours before this diagnostic will run. Possible...