Once in a while, the car idles high once in a while, and it is good to re ignite, what s going on

Hello, may I ask your model, if the idle speed is occasionally high, it means that your throttle valve is dirty and needs to be cleaned. You need to drive the car to the repair shop to clean the throttle, which costs about 80 yuan, and you have to make a match after washing the throttle. [If you have a problem with the car, ask the car master.]

4S shop professional technician, 10 minutes to solve. 】

Hello, according to your description, the engine occasionally has poor idle control, which may be due to excessive carbon accumulation on the throttle, which causes the engine computer to be unable to accurately control the amount of air intake and makes the idle control poor, and you need to clean the throttle.

Hope it helps.

If the temperature is low, it is normal for the cold car to idle at 1200 rpm, ask if the water temperature is around 800 rpm, if it is normal.

It is recommended to clean the throttle and idle motor [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello this occasional situation needs to be observed more, if it feels appropriate, mine.

Summary. Hello, I am your exclusive technician, attentive, careful, dedicated to answering your car questions, for you to find the corresponding problem solutions and solutions! According to your vehicle's high idling speed, it will be better to re-ignite after stalling, and it will come up again after a while, what is going on, and the questions are answered as follows: First, the throttle is dirty, and the throttle needs to be cleaned!

Second, the intake pipeline, the intake manifold is caused by air leakage, and it needs to be repaired! Third, if a sensor or solenoid valve of the engine control system is faulty, such as an air flow meter, it should be overhauled step by step! Auto Master is dedicated to serving you, and I hope my answer can help you!

Hello, I am your exclusive technician, attentive, careful, dedicated to answering your car problems, for you to find the corresponding problem solutions and solutions! According to your vehicle's high idling speed, it will be better to re-ignite after stalling, and it will come up again after a while, what is going on, and the questions are answered as follows: First, the throttle is dirty, and the throttle needs to be cleaned! Second, the intake pipeline, the intake manifold is caused by air leakage, and it needs to be repaired!

Third, if a sensor of the engine control system or a solenoid valve of the seeper is faulty, such as an air flow meter, gradually slow down the air maintenance! Auto Master is dedicated to serving you, and I hope my answer can help you!

How to solve my 05 Buick Regal high idleness.

Clean the idle motor, which is generally caused by the idle motor being dirty and stuck!

Ask about custom messages].

Summary. This is a normal phenomenon, the temperature is relatively low after the cold car starts, the computer will control the high speed of the engine, and it will slowly stabilize as the temperature of the engine rises. This is a normal phenomenon, there is no problem, the current vehicle is like this, the cold car starting speed is relatively high, there will be slight fluctuations, there is no problem, normal use can be.

Hello, happy to answer your questions.

This is a normal phenomenon, the temperature is relatively low after the cold car starts, and the accompanying computer will pretend to control the speed of the engine in the high hall, and it will slowly stabilize as the temperature of the engine rises. This is a normal phenomenon, there is no problem, the current vehicle is like this, the cold car starting speed is relatively high, there will be slight fluctuations, there is no problem, normal use can be.

Is it normal for the automatic transmission car to go up and down when the oil speed is given during driving?

This is normal. The moment it starts, this rev will definitely fluctuate quite a lot, and there is no problem with this, every car is like this.

See. Oh. Okay

caused by carsIdlingThere are many reasons for instabilityThrottleand air intakesCarbon depositsThe sludge contains too many socks, resulting in too thick and too thin mixture, which makes the combustion abnormal, resulting in unstable idling, etc., and the fuel injector is blocked, poorly sealed, faulty and other problems, resulting in uneven fuel injection, and will also cause the engine to idle unstable, as mentioned aboveSpark plugsProblems can make it difficult to start the car, and similarly spark plugs that have not been replaced for a long time, and electrodes that are ablated or damaged can also cause the engine to shake when idling.

The first reason is that the air valve is not opened or the degree of opening is small when the cold car starts, which will cause the engine to idle at a low speed when the cold car starts and the idle speed is low, and the idle speed will be unstable.

Second, the reason is that the engine idle control valve is faulty when the cold car starts, and the degree of opening is small, which will cause the engine to idle at a low speed when the cold car starts, and the idle speed will be unstable.

The third reason is that the quality of the oil is very poor.

Causes and solutions to the unstable idling of the first ignition in the morning:

1. If there is a problem with the air flow meter and circuit, the electronic control unit can not receive the air flow signal, the amount of fuel injection will be inaccurate, and the combustion mixture will be too thick or too thin to make the idle speed unstable.

2. The idle control valve of the throttle valve is to determine the normal idle speed of the EFI engine, if the throttle is too dirty and the carbon deposit is serious, it will make the idle control valve stagnate or the throttle valve is not closed in the accurate position, and the electronic control unit has no way to adjust the idle speed of the starting bridge and clean the throttle.

3. If there is a leak in the air intake pipe, the air flow sensor will not detect the correct air intake, then the electronic control unit will not correct the air intake, and the vehicle will idle unstable and turn off, replace the air intake pipe or find the location of the air leakage for maintenance.

When the car starts, it is in a cold state, and the idle motor of the car will automatically increase the air intake. It makes the gas inside the engine cylinder increase instantaneously. So the idle speed is much faster.

2.And when the engine temperature is low, it will also transmit this information to the driving computer system, which is what we call ECU, at this time, ECU will increase the amount of fuel injection, the purpose is to make the engine do not turn off at high speed. Only when the water temperature reaches the normal operating temperature will a command be issued to allow the idle motor to reduce the amount of air entering.

Then it will automatically descend and enter the normal working state.

3.But if your car is in a minute or two, the idle speed has not been reduced, then you should pay attention, at this time there may be a fault in the engine, if you don't understand, hurry to the auto repair shop for inspection and repair. Because it is always at high speed, it will damage the car.

In particular, engine-related parts wear out, and fuel consumption is still high. Waste of money. Over time, it may lead to the scrapping of the engine. Hope.

Just starting the engine with high speed, to solve this problem, you need to understand the principle of engine cold starting. This is mainly because the engine is in a cold state, the water temperature in the engine is relatively low, the engine control computer in order to make the water temperature reach the normal working temperature faster, it will control the amount of fuel injection, for example, the lower the temperature, then the more oil the injector will spray, which is equivalent to a thickening effect on the injector, so this is a normal phenomenon, when the engine of some cars starts, the moment of ignition can reach more than 2000 rpm, and the sound is also very loud, which is also normal.

It is normal for the idle speed to be high at startup. Cars need high speeds to get the engine to reach normal working conditions as soon as possible, and they need a thicker mixture, so the air intake and fuel injection will increase, resulting in high speeds. High sustained rotational speed is generally the cause of excessive carbon deposits.

Timely cleaning of the throttle and idle motor can usually solve the problem.

The idle speed is generally fixed when it is designed, and there is no question of whether it is low or high. For EFI engines, the idle speed will be relatively high when the car is cold, and the idle speed will gradually decrease as the engine temperature increases. Generally, the idle speed of gasoline engine is 700-850 rpm.

When the air conditioner is turned on, the electrical equipment is turned on, and the steering wheel is turned, the idle speed will increase slightly.

When the car first starts, the idle speed will be relatively high, and after a while, it will slowly drop to seven or eight hundred revolutions and stabilize in this range. This is normal. Why is the idle speed higher when the car is first started?

1. The automobile engine needs a relatively large torque to push from stationary to working, so when it just starts, the computer will control more air intake and more fuel injection in the cylinder to ensure that the engine can start and run smoothly.

2. When the car just starts, the temperature is low, the ignition in the cylinder, the fuel atomization is not very good, the combustion of the mixture in the cylinder is not good, and because the best working temperature is not reached, the friction between the piston and the cylinder wall is large, and the friction of the moving parts in the engine is large, so the running state of the engine is not very stable at this time, in order to prevent the engine from stalling after starting, so it is necessary to control the speed of the engine to be higher.

3. In order to reach the normal working temperature of the engine as soon as possible, in order to reduce the loss of the friction parts of the engine, in order to increase the temperature of the three-way catalytic converter to the optimal conversion temperature range as soon as possible, so as to reduce the emission of pollutants, the engine should be maintained at a relatively high speed to increase the engine water temperature as soon as possible, which is the so-called hot car process.

When the water temperature of the engine slowly rises, the speed of the engine will slowly decrease, and then stabilize in the range of seven or eight hundred rpm. This process is generally within a few minutes, the weather is cold for a longer time in winter and short in summer, and it will drop in just a dozen seconds. So as long as the idle speed is not high and stable after the car is hot, it is normal.

The idle speed of the vehicle is high when it starts, and many drivers think it is a faultRemember, this is just a sign.

The idle speed is adjustable!

So, when you feel that the idle speed is too high at startup, just ask the maintenance person to help you turn it down a little!

This is a normal phenomenon, and EFI cars start cold.

It is normal for the car to have a high idle speed when it is first started.

Generally, the cold start of the car will have a high idle speed.

Summary. If this happens, it is mainly because of the idle control of your engine, if it is with an idle control valve, it is recommended that you replace an idle control valve, if there is no idle control valve, use throttle control, it is recommended that you focus on checking the control circuit of the throttle, and at the same time check whether there is a problem with the throttle position sensor, this can be detected with a computer to see if there is a fault**, and then you can do certain maintenance according to the fault**. If there is no throttle failure**, then consider checking the intake system for air leaks.

Because my car is a 16 model Lavida hot car starts, the normal speed is 1200 rpm.

The throttle these are washed.

If this happens, it is mainly because there is a problem with the idle control of your start-up guess machine, such as Mengyinguo is equipped with an idle control valve, it is recommended that you replace an idle control valve, if there is no idle control valve, use throttle control, it is recommended that you focus on checking the control circuit of the throttle, and at the same time check whether there is a problem with the throttle position sensor, which can be detected by the computer to see if there is a fault**, and then do some maintenance according to the fault**. If there is no fault in the solar tassel door**, then you can consider checking the air intake system for air leaks.

Is the system faulty right now**?

Because he took it to the repair shop, he used the computer to test, and when he tested, he didn't see a fault.

In your case, there is usually a problem with the throttle, and you can consider changing the throttle.

Like this case, how much does it cost to change a throttle for this kind of car, he couldn't find the fault in the computer test in the repair shop, and he didn't see the fault.

If you change a throttle valve for this car, the cost will be about 300 yuan.

Many car owners always encounter various problems when starting their cars. Especially when the car is starting, the idle speed of the car is relatively high, but Wu Sui will be fine after a while, but there are many car owners who are not at ease and are worried about safety accidents. So, the car just started and the idle speed was too high, but after a while it was fine, what happened?

This situation is mostly caused by the low temperature of the engine cavity, because the temperature is low, the fuel atomization in the engine is not particularly good, so the car will have the problem of idle speed too high when it just starts, we only need to wait for the temperature of the engine to be normal, and it can be solved. Under normal circumstances, when the car has just started, there is a problem of excessive idle speed, but after a while, it can drive normally, and the car is no problem, which is a normal phenomenon.

If the car often has the problem of idle speed being too high after starting, you can check whether it is caused by too much carbon accumulation in the car.