With the increase of fuel consumption, is throttle cleaning more effective or injector more effective?

Excessive carbon deposition in the engine is a very important reason, mainly due to the use of inappropriate oil products. It is recommended to add a certain amount of detergent when refueling. If the effect is not obvious, it means that the engine has a lot of carbon deposits. In this case, the car must be driven to a 4S shop, and the carbon deposit in the engine must be removed by professional technicians. Moreover, it is best to drive at high speed after cleaning, which is beneficial to increase the exhaust volume and let the strong airflow bring out larger carbon particles.