What should I do if I stop importing Grand Jetron for 2 days without a car?

As for the problem that your car won't start when it is cold, it may be caused by too much carbon deposition in the throttle, idle motor, air intake and combustion chamber. Due to too much carbon and dirt in the air inlet, the cross-sectional area of the air passage changes, which makes the control unit unable to accurately control the idle intake air volume, resulting in the mixture being too rich or too thin and the engine unable to start. Too much carbon deposition also has a lot to do with not idling after landing. It is also possible that the electronic control system has poor fuel constant pressure performance and low fuel pressure, which leads to poor fuel injection atomization and difficult start-up. It is suggested that you can turn the key to the fully open position of the instrument light when starting, and wait for a while, or the engine can complete the self-test procedure, which is also beneficial to the whole engine and other electrical equipment. At this time, you can hear the noise of the oil pump. After the sound is over, close the key door and repeat the above operation two or three times, and you should be able to hit it once. I hope my answer is helpful to you.