An engine controller for a vehicle is provided, the engine controller having a tilt angle sensor incorporated therein. The tilt angle sensor is operatively connected to an electronic control unit via a signal line. The electronic control unit is operable to temporarily interrupt the operations of a fuel injector and/or an ignition coil when a tilt angle signal is input via the signal line when the tilt angle signal indicates a tilt angle in excess of a predetermined value. As a result of this configuration, the number of required parts is reduced and available space on the vehicle is used effectively.