What's with the ignition delay?

The reasons for the ignition delay are: serious carbon deposition on the throttle: carbon deposition on the throttle will affect the perception of the throttle and the air intake, leading to the delay or even error of the computer transmission signal, which will lead to the failure of the vehicle to start; Dirty nozzle: the nozzle is easy to stick some gum, which will block the normal injection and cause poor atomization of gasoline, thus delaying ignition and making it difficult to start the car; Spark plug carbon deposit: If the spark plug carbon deposit is more or the joint between metal and porcelain leaks, it will cause poor ignition; Dirty battery: Dirty battery terminals may also cause poor conductivity, thus affecting ignition; Of course, the lack of battery power may also cause the ignition start delay. Million car purchase subsidy