Is it related to idle motor that Wen Lan cold car is not easy to start?

The difficulty in starting a cold car in Wen Lan is related to engine idling. Idle motors are broken, which is similar to the reason why they have carbon deposits. When they are broken, they can't adjust themselves, and the state of ignition is the same as that of no ignition. The air during ignition can only enter from the reserved hole of throttle or idle motor. Because they are broken, the air intake cannot be adjusted, so the air-fuel ratio is incorrect and it is impossible to get a taxi.

Other reasons

Ignition by stepping on the accelerator can judge whether there is carbon deposit on the accelerator. If there is no ignition when stepping on the accelerator, it can be ignited immediately, indicating that there is carbon deposit on the accelerator and the accelerator needs to be cleaned. If there is carbon deposit, it can be solved by cleaning. It is also possible that some parts are damaged and need to be replaced. Generally, the following parts are broken, which will also lead to poor ignition.

If the gasoline pump doesn't work and no gasoline enters the cylinder, it will naturally fail to catch fire and work normally. The service life of gasoline pump is very long. Generally, cars that are more than 5 years old can be considered as problems with gasoline pumps. The method of checking whether the gasoline pump is damaged is simple. Just press the oil pressure check port on the gasoline rail to see if there is gasoline spouting, or connect the gasoline pressure gauge to check the oil pressure.

If the crankshaft position sensor is broken, it can't detect the rotation of the crankshaft, and the engine computer won't know that you are lighting a fire, so it won't control the nozzle to inject oil, and naturally it won't touch the car.