The oxygen sensor is damaged, replace the oxygen sensor.
The engine oxygen sensor is damaged. If the on-board computer fails to obtain the value, the amount of fuel injection into the engine will be abnormal, resulting in high and slow engine speed. after replacing the generator at 09 Lefeng, 80 miles at 3000 rpm. The oxygen sensor can be replaced.
The way to maintain the oxygen sensor is to not use low quality gasoline. Poor quality gasoline contains a lot of heavy metals, which can easily cause poisoning and oxygen sensor failure after use.
To adjust the tightness of the Chevrolet Lovo generator belt, you must first loosen the belt tensioner screw, then use the adjustment screw or tension adjustment lever to adjust the tension. tightening the belt. Specific adjustment methodss vary by car and engine model, so it is best to consult the vehicle's instruction manual or consult a professional technician to determine the correct adjustment method and sequence. Normally, you need to use proper tools to loosen the tension pulley screws, then adjust the screws or tension adjustment rod to make the belt achieve the proper tightness. Once the adjustment is complete, you should recheck the belt tightness and tensioner pulley position to ensure the adjustment is correct and the screws are secure. It is recommended to check the vehicle belt for wear and tension regularly, and adjust or replace it in time to avoid malfunctions and safety problems.