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Cummins ISM CM875 (2003-06) Fault Code: 2272 PID: P27 SPN: 27 FMI: 4/4 Exhaust Gas Recirculation (EGR) Valve Position Circuit – Voltage Below Normal or Shorted to Low Source. Low signal voltage detected at EGR valve position sensor circuit.
The EGR valve position sensor shares supply and return wires in the engine harness with other sensors. Open circuits and shorts circuits in the engine harness can cause multiple fault codes to be active.
Possible causes:
1)Signal circuit open or shorted to ground2)Supply circuit open or shorted to ground3)Sensor shorted to ground4)Damaged EGR valve.
Possible repairs:
1)Replace the EGR valve assembly.2)Replace the ECM.3)Repair or replace the appropriate harness.
Cummins ISM CM875 (2003-06) Fault Code: 2271 PID: P27 SPN: 27 FMI: 3/3 EGR Valve Position Sensor Circuit – Shorted High. High signal voltage detected at EGR valve position sensor circuit.
Cummins ISM CM875 (2003-06) Fault Code: 2215 PID: P094 SPN: 94 FMI: 1/18 Fuel Pump Delivery Pressure – Data Valid But Below Normal Operating Range – Moderately Severe Level. Low fuel pressure has been detected by the ECM.
Cummins ISM CM875 (2003-06) Fault Code: 1943 PID: SPN: 3555 FMI: 1/17 Ambient Air Density – Data Valid But Below Normal Operational Range – Least Severe Level. Engine torque has been reduced because the vehicle was operating at a high altitude condition.
Cummins ISM CM875 (2003-06) Fault Code: 1228 PID: P27 SPN: P27 FMI: 2/2 EGR valve position sensor circuit – data erratic, intermittent, or incorrect.
Cummins ISM CM875 (2003-06) Fault Code: 1119 PID: P110 SPN: 110 FMI: 0/16 Engine Coolant Temperature – Data Valid but Above Normal Operating Range – Moderately Severe Level. Engine coolant temperature signal indicates coolant temperature is above the engine coolant temperature engine protection warning limit.
Cummins ISM CM875 (2003-06) Fault Code: 951 PID: 951 SPN: 166 FMI: 2/2 A power imbalance between cylinders was detected by the electronic control module (ECM).