This video explains the function, purpose, and issues of EGR.
Emission control systems (Gasoline engine), How they work.: https://youtu.be/AnbWDVQ9aCw
Engine brake and Pumping loss, How they work.: https://youtu.be/fB7GXjqQEHY
Emission control systems (Diesel engine), How they work.: https://youtu.be/e-e3dYAThxI
#egr_valve
#egr
#egrバルブ
#explain
#howitworks