What statement is NOT correct about the fuel injector?

The correct response identifies that the statement regarding the fuel injector supplying fuel for all cylinders on the engine is indeed not correct.

Fuel injectors function by delivering precise amounts of fuel to each cylinder individually rather than supplying fuel to all cylinders at once. This individual control allows each cylinder to operate efficiently and respond to varying demands during different engine conditions. By injecting fuel specifically tailored to the requirements of each cylinder, the engine achieves more effective combustion and better overall performance.

In contrast, the other statements are valid. Fuel injectors do operate electronically, allowing for precise control influenced by the engine management system. They are designed to inject fuel directly into the combustion chamber in many modern engines, which enhances fuel atomization and contributes to better combustion efficiency. Furthermore, they regulate fuel flow based on engine demand by adjusting the fuel mixture according to various factors such as throttle position and engine load, ensuring that the engine performs optimally under different conditions.