Electronic engine display / interface J1939
In a perfect world the ECU (engine control computer), start button, electronic throttle and on / off toggle switch are all that is required to make the engine function and protect itself.
The world is not perfect and things often go wrong. The ECU will slow down or shut down the engine when trouble is sensed. You will not know why unless you can see what is going on inside the ECU.
The J1939 CAN (common area network) capabilities supplied with the new "electronic engine" allow the operator to see what is happening within the computer controlled operating system of the engine.
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