Engine speed sender (G28)

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The engine speed sender monitors the engine speed and reports the value to the Digiswing control unit. It is required so the control unit can start the engine correctly (i.e., disengage the starter motor once the engine has fired), as well as being used to master the clutch (i.e., to determine when to open or close the clutch). It can be used to substitute data if other sensors fail (for example failure of the Load signal potentiometer (G157)).