How many kilometers does Bluebird clean the throttle?

During the cold start of EFI vehicle, the fuel injection pulse width is mainly based on the signal of cooling water temperature sensor. Therefore, when the signal of the main sensor is normal, the cold start of the car is easy (the air path is idle bypass, and the oil path is mainly based on the signal of the cooling water temperature sensor). The fuel injection pulse width needs the signal provided by the air flow sensor when the hot car is hot, so it is not easy to start the hot car.