How to control the air intake of diesel engine?

Don't complicate this problem! Diesel engines are different from gas engines. Diesel engine fuel injection is large, combustion will naturally intensify, so the required air will naturally increase! The near air volume is naturally ingested according to the size of the throttle! There is no need to control the intake air volume. If you want to add a solar energy saver, it will definitely emit black smoke! Thank you for your adoption!