What about the failure of the sixth generation Camry air flowmeter?

The diagnostic computer accesses the Pacific Auto Network, reads the data flow at idle speed, and judges that the current mixer state is normal and the fuel injection quantity is normal, but the long-term fuel correction value is obviously too large, indicating that the engine is in the state of too lean mixer.

If all the air flow meters are broken, there will be unstable idle speed, weak refueling and black smoke, or it may not work (if you are in doubt, you can unplug the air flow meter, if it works, it is the flowmeter that is damaged). Air flowmeter is one of the most important sensors in the control system of EFI engine, which is used to measure the amount of air inhaled into the engine. In order to obtain the best mixture concentration in various working conditions, the EFI engine must correctly measure the amount of air inhaled into the engine at each moment as the main basis for computer calculation and control of fuel injection. The difference between the air intake when the engine idling throttle is fully closed and the air intake when the automobile accelerating throttle is opened can reach more than 40 times, and the maximum air intake flow can reach more than 80 m/s. The air flowmeter should be able to accurately measure the air intake within these changing ranges. Moreover, in the process of measurement, the air flow is unimpeded, and the air intake resistance is reduced as much as possible. Common faults of air flowmeter include short circuit, open circuit or abnormal intake signal. Its failure will make the computer unable to measure the intake air into the engine correctly, thus unable to control the fuel injection normally, resulting in the mixture being too rich or too lean, which will make the engine run abnormally. Air flowmeter is a high-precision component. During maintenance and disassembly, care should be taken not to collide, not to let dirt enter the flowmeter, and not to put tools or fingers into the flowmeter at will to avoid damage. There are many kinds of air flow meters, and their structural principles are very different, so their maintenance methods are different.