What are the symptoms of a slight intake manifold leak?

[JosiahAnn]

Intake manifold slight leakage can cause incorrect air-fuel mixture matching, which may trigger the engine exhaust warning light. Below are the relevant details: Function of the intake manifold: The intake manifold is a component of the engine's intake system. This pipe distributes air to each cylinder. The inner walls of the intake manifold are usually smooth to reduce resistance. Solution for slight intake manifold leakage: When installing the air filter element, it must be properly installed; otherwise, it will affect the filtering performance. When replacing the air filter element, check whether the surface of the old filter is very dirty. If the surface of the old air filter is clean, it indicates that the air filter did not perform its filtering function.