问：我的车闲置 - 我更换了冷却液温度传感器，现在风扇不起作用

这可能与肮脏或故障的空闲空气控制阀有关。闲置空气控制阀在注入发动机之前将其与燃料混合在一起，以监测其摄入量。该阀由车辆的计算机控制，该计算机将根据发动机温度，进气温和电气系统负载或电压等其他测量值来调整空闲速度。

When you accelerate, the engine RPM increases, and as you let off the gas, the RPM slowly returns to the normal idling speed. This is all done by the idle air control valve. When the engine RPM drops below the normal range of 750-800 RPM (for most cars), this may indicate a dirty or faulty idle air control valve. In cases where this valve is dirty or failing, your vehicle may stall instead of slowing to an idle after the release of the throttle. You may also want to check the冷却风扇中继开关。As you may know, this is the switch that controls the operation of the fans based upon input data from the coolant fan temperature sensor which you have just replaced. When this relay is not working properly, this may cause the fans to work intermittently or in some cases not at all. I would recommend having an expert from YourMechanic come to your location to诊断和修复空闲的空气控制阀。