How to solve the fault of Teana sensor

The solution to the sensor fault is as follows: 1. Remove the wiring board of the sensor so that the probe of the voltmeter contacts the connector at the sensor end. First, when the engine warms up at idle speed, the data of the voltmeter should be greater than the reference value, then turn the adjusting screw of the air flowmeter to the left to dilute the concentration of the mixture, and then the voltmeter should be lower than the reference value. If the oxygen sensor is found to be damaged, it usually needs to be replaced. 2. Unplug the wire harness plug of the sensor and remove the sensor. Heat the sensor in water and measure the resistance between two terminals of the sensor at different temperatures. Compare the measured resistance value with the standard value, and replace it if it does not meet the standard. 3. Pull out the harness plug of the throttle position sensor and check the continuity between the terminals with a multimeter. When the throttle is at idle speed, the middle and upper terminals should be conductive. After the throttle is turned on, the upper and middle terminals should be disconnected. If the result is inconsistent with the above, it should be adjusted.