Step on the clutch manually, and it turns [/k0/] because there is no gearbox output. An empty car with the gas pedal means stepping on the gas pedal and not driving. It is cold in winter, and the atomization effect of the fuel injector is not good. Some low-end cars are difficult to get on. You can take a taxi with an empty throttle, which increases the fuel injection and makes it easier to get on the bus. But if you step on the accelerator repeatedly, it is easy to drown the spark plug, so you can't get on. If the idle time is long, it will take longer for the engine to reach the normal temperature. After spraying gasoline on the back of the valve, the evaporation rate will slow down and carbon deposition will also occur. Carbon deposition will block the idle passage, leading to the stagnation or out of the adjustment range of the idle control device, which will lead to the phenomena of low idle speed, idle jitter, failure of various auxiliary devices to speed up, oil collection and shutdown, excessive exhaust volume and increased fuel consumption. You can run at high speed when you are free, and use the scouring effect of airflow on the air inlet to prevent carbon deposition. In addition, increasing the shift speed is similar to driving at high speed. Changing the original 2000-speed shift to 2500-speed shift can not only effectively prevent carbon deposition, but also improve the power of the car and avoid explosive vibration caused by too low shift speed, thus protecting the engine.
Million car purchase subsidy