What happens to the mass of intake airflow into an engine when the EGR is enabled?
A)Nothing happens.
B)The mass increases.
C)The mass decreases.
D)The mass becomes cooler.

Question

Quizplus · Accepted Answer

When EGR (Exhaust Gas Recirculation) is enabled, some of the exhaust gases are recirculated back into the intake, reducing the amount of fresh air entering the engine, thus decreasing the mass of intake airflow.

What Happens to the Mass of Intake Airflow into an Engine