空气流量传感器超时未到达”

这个问题通常是由于空气流量传感器（AFS）没有及时响应而导致的。通过更改电源和地线可以解决这个问题。

代码示例：

1. 检查传感器的电源和地线：

// For AFS with 5V power supply:
Sensor Pinout: Red=Power, Black=Ground, Yellow/White=Signal
Sensor Wiring: Red=5V, Black=GND, Yellow/White=SIGNAL
Should check above pinout and wiring.

// For AFS with 12V power supply:
Sensor Pinout: Red=Power, Black=Ground, Blue=Signal
Sensor Wiring: Red=12V, Black=GND, Blue=SIGNAL
Should check above pinout and wiring.

2. 检查传感器线路的电气连接：

// Check if the AFS sensor’s signal wiring is connected to the ECU properly:
Check if the wiring is connected to the ECU properly, and check the continuity of the wiring from the AFS to the ECU.

// Check if there is any corrosion or damages to the wiring harness:
If any corrosion or damages are found, replace the wiring harness.

3. 检查ECU端口：

Check if the ECU port is clean and free of corrosion, dirt and debris.

以上方法应该可以解决'空气流量传感器超时未到达”的问题。