| 摘要 |
A control device for an engine variably controls electricity power supplied to a motor driving a valve to open or close a fluid passage based on operation condition of the engine. The valve has a full close range in which the fluid passage is closed. When the engine has low load and low rotation, the control device stops supplying the electricity power to the motor, and the valve is held at a neutral position where a biasing force of a first biasing portion and a biasing force of a second biasing portion are balanced. The neutral position is set within the full close range.
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