The speed of the car cold start is 1200 rpm, and then the speed of ignition is 800 rpm, what is goin

Hello, it is normal for the car to start cold when the speed is high, after the car has been parked for a long time (such as overnight), the oil in the engine has flowed back to the lowest oil pan, and the upper half has no oil and is in a dry grinding condition with lack of lubrication. It takes about 30 seconds after the start of the oil pump to transport the oil to the pistons, connecting rods, crankshafts and other parts that need to be lubricated the most.

Hello, after the vehicle is started in a cold state, the engine computer will control the engine to run at high idle speed, the purpose is to warm up the engine faster, and the idle speed will return to normal after 3-5 minutes, which is a normal phenomenon, you can drive with confidence!

It's just as normal that it takes a lot of effort to take your first step. There are many devices that have to be started when the car starts, for example, your oil has to go from static to dynamic, so it will maintain a high speed for about 3 minutes after starting, and then reduce back to normal speed. This is normal, which is often referred to as the process of hot cars.

This is a normal phenomenon, the first ignition idle speed is high is the reason for the cold car is also related, and the speed is relatively low in the future.

Hello! The vehicle is cold, and when the car starts, the engine idle speed is high, which is normal, as long as the temperature rises, the idle speed can be reduced.

Hello, it is normal for the vehicle to start the engine at 1200 rpm cold. After the hot car returned to 800 rpm without any problems.

Hello, this is very normal, the idle speed of the cold car itself is relatively high, and it will return to normal after the hot car.

Hello, this is normal, the idle speed of cold car start is high, the engine needs to warm the car, this is normal, there is no problem, every car is like this, the program is designed like this.

Hello, this is normal, the engine speed is a little higher when you start cold, and it is normal after the hot car.

If this is the case, as long as the engine temperature rises after the vehicle is started, there is no problem with the idle speed being reduced, and you can use it with confidence.

This is a normal phenomenon, the speed of cold car start and hot car start is definitely different, and the speed is about 800 is more normal.

Hello, the cold car starts at a high speed, which is a normal phenomenon. After two minutes, there is no problem going back to between 700 and 900.

Hello, this situation is a process in which the engine control unit controls the vehicle to warm up according to the vehicle's own situation, which is a normal phenomenon.

Hello, this is relatively normal, the second time I started it was no longer a cold car, so the idle speed came down.

Hello, this is normal, the idle speed of the cold car is higher, and the hot car will return to normal after the hot car, which does not affect the use.

It is normal to start at 1200 rpm when the car is cold, and it will be fine when the rev returns to 800 rpm after a while.

Hello, it is normal for the cold car to start at a high speed, and when the car is hot, the speed will naturally drop down, so you can use it with confidence.

Hello, it is normal for the cool car to start with high idle speed, and it can be heated in situ, and the speed will be fine for a while.

Hello, the speed of the car you mentioned is still relatively normal, mainly in the case of cold cars, the speed of the car is quite high.

For the cold start of the vehicle, the general speed will be relatively high, and this situation is relatively normal.

Hello, the engine speed of the vehicle will be a little high when the car starts cold, and it will fall back after the car starts.

Hello, the speed of cold start ignition is relatively high, and it is not a cold start at a start.

Hello, this starting speed is still normal, there is no problem, you can go to the repair shop to see the throttle opening and clean it if necessary.

It is quite normal to idle at 800 rpm after a cold start. After a cold start, the engine idles at 1500 rpm, and as the water temperature gradually rises to the operating temperature, the rev can return to between 600 and 800 rpm, which is normal.

The temperature of the engine is not always better as low as possible, and the engine of a car has a normal operating temperature. Only within this normal operating temperature range is the engine most efficient, the power is the best, and the fuel economy is the best.

At the time when the engine was first started.

The coolant is circulated in small quantities, and the coolant does not pass through the radiator tank, which is conducive to a rapid increase in the temperature of the engine. After the engine starts to reach the normal operating temperature, the coolant will be recycled, and the coolant will be dissipated through the cooling water tank, so that the engine can be kept within a reasonable operating temperature range.

The coolant needs to be replaced regularly, and if the coolant is not replaced for a long time, it will cause the freezing point of the coolant to rise and the boiling point to decrease, which will affect the normal operation of the car engine.

My situation is exactly the same as yours, I don't know if it's normal, I always feel that it should be idle for a longer time when it's cold, but I don't know that after starting, it will be directly normal idling.

The car starts cold, the idle speed is high, and it is an auxiliary preheating If the cold car starts at 800, then I don't feel normal, my car is like this during this time, and I haven't come yet, I can't go to 4S to ask them, and if you have time, you can go to ask the 4S shop.

Mine also appeared once today at 800 rpm! It used to be around 1200 rpm! What's going on.

Just maintained, changed the full synthetic engine oil ran 100 kilometers, started the car this morning, and the idle speed was about 820It has been high and low.

Normally, it would be cold and over 1000 rpm and then back to around 800, but I've never seen a single fire at 800 rpm.

My car's cold start is basically ignition 1100 rpm, which drops to about 750 in about a minute.

Is it used in the Volkswagen 4S store for fully synthetic engine oil?

First high and then low, has your brother ever climbed the mountain? Warmed up?

Normally, in winter, due to the low temperature, the idle speed of the vehicle will be very high when it is just on fire, so you can wait for a while and wait for the idle to be low before driving. You can also drive at a low speed for a while, and then speed up when the idle speed is normal. Engine idle performance has a great impact on emissions, fuel consumption and comfort, so engine idle performance is an important indicator to evaluate engine performance.

Handling and comfort.

The vehicle diesel engine is unstable when idling, resulting in the fluctuation of the output torque of the diesel engine, thereby arousing the torsional vibration of the whole drive system, the phenomenon of the vehicle vibrating before and after at low frequency (less than 5Hz), called the surge of the vehicle, it will not only cause the body to vibrate, make the handling performance of the vehicle deteriorate, reduce the comfort of the car, but also produce greater noise, affect the life of the transmission system.

Guess the subject's car is Japanese, Japanese usually have this kind of operation, when just getting on the car, by increasing the engine speed, to quickly help the engine into the working state, in 1 to 2 minutes, the speed will drop to 800 to 1000 rpm, if the speed has not fallen, then there is a problem.

It's normal, I've changed six cars like this. It would be nice to warm up the car for a while.

When the car starts cold, the engine speed will be relatively high, and it is also unstable. Generally speaking, the speed of the vehicle will reach more than 1000 rpm when it starts cold, and then the speed will drop to about 700 rpm after one minute of hot start, so it is very normal for the vehicle to rise to 1200 rpm when it starts cold, and the speed will drop to the normal idle state after starting. Therefore, when encountering high rpm of the cold-start engine, there is no need to worry.

The high speed of the cold start of the car is first caused by the insufficient lubrication of the engine. After the car is parked for a long time, the oil will precipitate, so that when the engine just starts to start, the oil can not fully lubricate, and the engine speed will be relatively high, generally above 1000 rpm, and the sound is relatively loud; Secondly, the fuel injector has a large amount of oil. When the vehicle starts cold, the engine does not reach the optimal working temperature, so the fuel injector needs to automatically increase the amount of fuel sprayed, and the idle speed of the vehicle will be correspondingly high, generally around 1000-2000 idle speed is normal.

When the temperature rises, the speed will return to the normal state; Finally, the water temperature is low. The water needs to reach a certain temperature to ensure the normal operation of the vehicle, and if the water temperature is too low, the car will speed up to increase the temperature of the water and oil. <>

After the vehicle is left for a period of time, the oil in the engine will flow to the oil pan, so that when the engine starts, the lubrication effect cannot be achieved, and the engine speed will increase. <>

When the cold car starts, the computer's driving system will automatically increase the fuel volume of the fuel injector to increase the temperature of the engine as soon as possible and let it enter the normal working temperature. <>

When the cold car starts, the water temperature of the vehicle is not enough, so the engine speed will also become higher, and after the engine temperature reaches the normal temperature, the engine speed will return to normal conditions.

This phenomenon is called idling. It's not normal. The main reason is that there is a malfunction in the control of the idle function. It is recommended to go to the repair shop to check whether the accelerator pedal position sensor and throttle position sensor signal are normal.

Because the speed is different due to different friction, generally the greater the friction, the more the speed, and the smaller the friction, the less the speed.

Summary. The sudden increase in vehicle idle speed may be caused by the failure of the engine intake system and fuel system, and now the car has a cold idle function, that is, the speed is relatively high when starting the vehicle, about 1200 rpm, and it drops to 800 rpm after normal, and lasts about 30 seconds to 1 minute, and then it can be reduced to normal idling.

The reason for the speed of more than 2000 at the moment of cold start.

Hello, I am inquiring for you here, please wait a while, I will reply to you immediately

Hello dear, glad to answer for you. The speed of the cold car is more than 2000 at the moment of starting: the lower the temperature, the higher the idle speed of starting. The condition is completely normal, and the automatic adjustment of the engine is intact.

The sudden increase in vehicle idle speed may be caused by the failure of the engine intake system and fuel system, and now the car has a cold idle function, that is, the speed is relatively high when starting the vehicle, about 1200 rpm, and it drops to 800 rpm after normal, and lasts about 30 seconds to 1 minute, and then it can be reduced to normal idling.

I hope the above is helpful to you If you are satisfied with me, please give me a thumbs up

The moment the car was hit, it was idling at more than 2,000 rpm, and the engine was very loud.

The moment the car was hit, it was idling at more than 2,000 rpm, and the engine was very loud.

The sudden increase in vehicle idle speed may be caused by the failure of the engine intake system and fuel system, and now the car has a cold idle function, that is, the speed is relatively high when starting the vehicle, about 1200 rpm, and it drops to 800 rpm after normal, and lasts about 30 seconds to 1 minute, and then it can be reduced to normal idling.

I hope the above is helpful to you If you are satisfied with me, please give me a thumbs up

It's a normal value, but if it's too much higher or lower than that, you're in trouble!

The idle speed of cold start starts from 1500 rpm is the electromechanical system that gives the command to the fuel injector to increase the amount of fuel injected so that the engine lubrication system and cooling system can quickly reach the temperature and state suitable for fast driving. After a cold start, all cars can only drive at high speed after the speed drops to 700-800 rpm. But this often takes a long time, especially in winter, when the water temperature of the engine rises, sometimes it takes more than 5 minutes, which is too fuel-intensive!

In fact, you can start two or three minutes later, drive slowly in gear, and you can run away after about 2 minutes!

It's normal, my Fit is like this, 1500 rpm for cold starting, 1300 rpm for three minutes of hot car, haha, Fit is like this.

Summary. Hello friend, like you this winter, if you start the car cold, the speed will generally reach 1000 rpm or 1100 rpm to increase the speed, so that the engine can quickly enter this warm-up state. Then, after two minutes of high rpm, when the engine temperature rises, this rev will drop, and it will be fine to shine on the stable condition of 750 rpm.

A car like yours will not speed up if it only starts at 800 rpm when it starts cold. This is generally an abnormal state. You have to take a closer look at this, is it at 800 rpm every time it starts?

If it's all 800 diamonds, this must be a problem with your throttle. This needs to be diagnosed with a computer, repaired, and replaced with a throttle valve to solve your fault.

The speed of cold start is only 800 rpm, is there a problem?

Dear, this question is up to me, it takes a little time to type, please be patient, thank you!

Hello friends, like you this winter, if the cold car starts, the speed will generally reach 1000 rpm or 1100 rpm to increase the speed, so that the engine can slow down to enter this warm-up state. Then, after two minutes of high speed, after the engine temperature rises, this speed will drop, and it will be fine at 750 rpm. A car like yours will not speed up if it only starts at 800 rpm when it starts cold.

This is generally an abnormal state. You have to take a closer look at this, is it at 800 rpm every time it starts? If it's all 800 diamonds, this must be a problem with your throttle.

This needs to be diagnosed with a computer, repaired, and replaced with a throttle valve to solve your fault.