Does the diesel car have a throttle?

Many car owners know that the car has a throttle, and they need to clean the throttle regularly when maintaining the car. So does a diesel car have a throttle? Generally, diesel vehicles don't have a throttle, because gasoline engines rely on valves to control the intake air, so the load characteristics of gasoline engines are called throttle characteristics. The diesel engine adjusts the load by changing the fuel injection quantity through the fuel injector, so the load characteristics of the diesel engine are called fuel adjustment characteristics. However, some advanced diesel engines have throttles to improve emissions, because the exhaust pollution of diesel engines is obviously higher than that of gasoline engines. Advanced diesel engines generally use throttle and VGT to change the pressure difference between the intake and exhaust pipes of automobiles and achieve accurate EGR control, which is also the purpose of using throttle in diesel engines. The throttle of diesel vehicles should also be cleaned regularly, because improper maintenance of the throttle will lead to gas leakage and affect the service life of the engine.