PURPOSE: To prevent supply of fuel from stopping even when a speed change gear is gently shifted up, by providing a fuel cut control circuit and engine restarting control circuit in a fuel controller.

CONSTITUTION: When an automobile is once decelerated and then accelerated, a change gear is shifted to depress an accelerator pedal, if a throttle valve exceeds a prescribed opening, a fuel cut control circuit 55 stops output of a fuel cut signal to restart supply of fuel to an engine. Further if the engine is at a prescribed speed or less, a speed change is shifted down to a gear position of low speed side, if a clutch is placed to a disengaged state, a condition for an engine restarting control circuit 64 to output a restarting signal can be met, and a restarting means of starter and the like is driven to restart the engine.