How to judge the air leakage in the intake pipe and what are the symptoms of air leakage in the intake manifold

I believe a lot of people don’t understand, in fact, there are also cracks in the intake pipe.Air leakof, Then how do we judge the air leakage in the intake pipe? What are the symptoms of a leak in the intake pipe?

How to judge the air leak in the intake pipe?

Under normal circumstances, the following symptoms will occur when the intake pipe leaks:

The engine is running weakly:Since the air sucked into the engine from the cracks in the intake pipe does not pass through the air flow sensor, this part of the gas will make the combustible gas mixture in the engine cylinder thinner, causing the engine to appear weak.

Exhaust nitrogen oxides emissions increase:As the nitrogen oxides (NOx) in vehicle exhaust gas are formed by reaction in a high temperature and oxygen-rich environment, too lean combustible gas mixture will promote the production of nitrogen oxides, thereby increasing the emission of vehicle exhaust pollutants.

Difficulty starting:Since the engine requires a higher concentration of combustible gas mixture during the start-up process, the lean combustible gas mixture caused by the air leakage of the intake pipe may cause the engine to start difficulties and other phenomena.