Reasons for startup delay:
1, the oil is not good: if the car suddenly can start normally, to delay the start, then the first thing to think about their recent whether to change the gasoline of different labels, different places of gasoline.
2, the car carbon accumulation or parts dirty;
A. Throttle valve: the carbon accumulation of throttle valve will affect the perception of throttle and air intake, causing the computer transmission signal lag or even error, resulting in the vehicle can not start;
b, fuel injection nozzle: the nozzle part is easy to adhere to some gum, these gum will block the normal amount of fuel injection, resulting in poor gasoline atomization, so that the ignition delay, the car is difficult to start the phenomenon;
c, spark plug: if the spark plug has more carbon or there is air leakage at the joint of metal and porcelain, it will cause poor ignition;
d, battery: battery terminal dirt may also cause poor conduction, thus affecting the ignition; Of course, insufficient battery power may also cause ignition start delay;
3, the starter relay is faulty;
4. The starting motor is faulty;
5, the oil viscosity is not suitable: for example, the temperature is very low, the oil viscosity is high, resulting in slow oil flow, mechanical dry friction, so it is difficult to start, and this is very harmful to the car;
6, ignition switch problem;
7, the carbon tank solenoid valve is faulty: after exposure to the sun, the ignition is weak, but there is no secondary ignition, generally there is a problem with the carbon tank solenoid valve, because the role of gasoline after exposure to the sun is particularly large, the valve of the carbon tank valve is not well sealed and easy to flood the cylinder that is wet wall.
8. There is a problem with ignition timing;
9, camshaft sensor failure: in the case of confirming that there is no problem with the timing check, you can focus on checking whether the camshaft position sensor is working properly;
10, insufficient oil pressure: gasoline pump pressure relief, injection nozzle seal is not good, etc., will cause insufficient gasoline pressure, so the ignition time will extend the car starting delay, starting difficulties, whether it is in the hot car or cold car, can not be separated from the oil circuit, circuit, oil and electric cooperation of these three problems.