Cummins ISX Fuel System

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Cummins 3rd generation of electronics was introduced in 1997 under the IS management system. ISX CM870 engine control system The Electronic Control Module is the control center of the system. The ECM processes all of the inputs and sends commands to the fuel system, vehicle, and engine control devices. Because the ECM is the final pathway of integration for all vehicle management systems, it is called interact or IS for short.