An intelligent device for a multifunctional electronic control determined by motor vehicle incorporating a microprocessor and a throttle position sensor, the microprocessor selecting the ignition-timing curve according to the throttle position as the sensor; a fuel changeover switch for changing over to the type of fuel used and to various timing curves according to the type of fuel and vehicle speed, said microrocessor being connected to the ignition coil of the vehicle whereby the latter generates a spark at specified intervals as determined by the microprocessor; a gas solenoid control which causes the said solenoid to be driven only for predetermined intervals of time; a power economy mode unit, for feeding the throttle position to the microprocessor from the throttle position sensor, the microprocessor output being displayed on the speedometer dial of the mode; a powe ignition curve vehicle by a tell tale symbol indicating whether or not the driver is driving in power-economy mode; a power mode operating unit having an read by the microprocessor to indicate the optimum torque and power and avoid knocking in full throttle operation; a cut-off unit connected to the microprocessor, such that when the sensor signals the microprocessor that the engine is running, the latter disconnects the electric start - ignition circuit, the microprocessor however,not disconnecting the said circuit while the engine is idling; a starter relay timer for limiting the starting time through starter relay; a low lubrication oil pressure switch to indicate the oil pressure of lubrication oil inside the oil sump of the vehicle, such that if the pressure is lower than a predetermined value, it indicates the inadequacy of lubrication oil for the engine, the microprocessor sensing the output pressure of lubrication oil pressure through oil pressure switch, retarding the engine to caution the driver after a predetermined interval, the microprocessor also stopping the engine after a predetermined interval of time to give the user a finala opportunity to replenish the oil sump; a choke whose timint is set according to the bulk temperature in the engine compartment, the input to the microprosser being from a temperature sensor unit, mounted in the engine bulk area; a cooling fan unit for setting the colling fan to ON/OFF condition according to the bulk temperature in the engine compartment, the input to the microprocessor being from the aforesaid temperature sensor unit mounted in the engine bulk area, the microprocessor keeping the cooling fan in the ON or OFF condition according to the temperature of the engine bulk area.
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