What is meant by fuel metering accuracy?

Fuel metering accuracy refers to the precision with which fuel is delivered to the engine in relation to the engine's demand for fuel. This accuracy is critical in ensuring that the engine receives the right amount of fuel at all times, which directly affects performance, efficiency, and emissions. Proper fuel metering ensures that the engine operates smoothly and efficiently, preventing issues such as fuel starvation or excessive fuel consumption.

In fuel metering systems, maintaining the correct ratio of fuel to air is essential for optimal combustion, engine performance, and compliance with regulatory standards. Variations in fuel delivery can lead to operational problems, such as rough engine running or increased pollutants being emitted, highlighting the importance of metering accuracy in both performance and environmental considerations.