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Practical Motorsport Wiring - Club Level

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do i need to change or maybe improve something for my design(my first formula student project)

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One problem with your wiring, is the Dash and ECU are only powered when the Ignition is on.

Most race cars like to have the Dash and ECU powered with the master switch (or rename your IGN to be "main power" if you don't want to use the Master all the time). I would just use a simple ign switch (also known as Run/Stop) for the ECU to control if the engine will run if the starter is cranked. For example, we often want to run the starter to build oil pressure before starting. And you need the ECU and dash powered to see the oil pressure value. The M150 ECU will not fire the injectors, run the fuel pump, trigger the coils if the Run/Stop is not in the Run position. I think you will find it convenient to be able to stop the engine without resetting the ECU.

so i did some editing can you check if it's ok or not,thank you.

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