How much is engine idling normal? How normal is the average idling speed of a car?

Engines with good working performance generally have an idle speed of 550-800 rpm.

Idle speed means that the engine runs under no load, and only needs to overcome the frictional resistance of its own internal parts, and does not output power to the outside world. The minimum speed at which an engine runs smoothly is called idle speed and is one of the five basic operating conditions of an engine. The idle speed can be adjusted by adjusting the size of the throttle opening, the amount of fuel supplied at the idle speed, etc.

Generally speaking, the lowest engine speed is best when the engine is not shaking in the idle range and the acceleration performance is good.

Normal is generally 700-800 rpm, too low the engine is easy to shake, too high is high fuel consumption, as long as it does not shake, design engineers want to try as low as possible in order to save fuel.

In the following cases, the idle speed will automatically increase by 50-150**1, cold start, and the water temperature is low; 2. The battery loses power; 3. Turn on the air conditioner and refrigerate.

If the idle speed of the car is unstable, the following hazards will occur:

2. If the idle speed of the car is too low, there will be potential safety hazards of stalling at any time during driving.

3. When the car is idling, it is possible that the spark plug or high-pressure bag will not work, resulting in the engine piston not working, causing severe shaking.

Nowadays, the engine idle speed is generally around 600 to 800 rpm. The engine of the old model has a high idle speed, around 700 to 1200 rpm. Wish.

After the ignition of the cold car, the general engine is loud, basically the sound of the air pump working, and after the engine runs normally, the combustion is also completely completed, and the secondary injection system stops working, and the idle speed drops. However, there are also cases where the engine burns completely after the ignition of a cold car.

Idling is when you stop in place, don't press the accelerator pedal, and keep the engine running at about 800 rpm.

Short-term idling has no effect on the car, and long-term, such as more than 1 hour of idling, is not very harmful to the car, but there are the following two hazards:

1. It is easy to burn engine oil at idle. When idling, the throttle opening is small, and the vacuum inside the intake manifold is high, which makes it easy to suck oil vapor into the intake manifold, and some are deposited inside the intake manifold to form a substance similar to carbon deposits, or coking. Prolonged low or idle speeds, especially in turbocharged models, will find a puddle of oil in the intake manifold behind the throttle, but this oil will generally disappear after running high speeds.

Second, it is easy to accumulate carbon at idle speed. When idling, the general mixture will be thicker, so the idle mixture is thick for a long time, which is easy to make the engine carbon, and low-speed driving stop-and-go is also, such as "one foot of the accelerator and one foot of the brake", one foot of the accelerator just raised the speed, and then the brake is again, the engine is in a situation where it will be thickened and the amount of fuel injected will be reduced, and it is also easy to make the engine carbon.

In general, long-term idling does not hurt the engine much, the wear is very small, and there is no need to worry about the engine problems, that is, it is more fuel-intensive, and then the engine is easy to consume oil and cause some carbon deposits. Generally, idling for ten hours is nothing, and some people forget to turn off the ignition and idle overnight, and then the fuel tank runs out of fuel and turns off.

Even if the idle speed is 10 hours, there is no need to do any remedy, the engine can be regularly maintained and changed oil, now the engine is not so fragile, idle for a few days will not be fine, and try to avoid idling for a long time in the future.

It is relatively normal for a new car to idle at about 700 to 800 revolutions per minute, car idle refers to the car does not do work externally, the car is in a no-load state at this time, at this time as long as the minimum stable speed of the engine is maintained, generally different models will also produce some differences in the idle speed, which should be determined according to the model.

At present, there are two types of engines on the market: turbo and self-priming, because the engine is different, the idle value is also different, and even if it is the same engine, the idle value will not be different due to different tuning. But no matter what the situation is, if the engine is not abnormal, the idle speed value of a normal vehicle is generally below 1000 rpm and maintained between 600-900 rpm.

However, in different environments, when the vehicle is just started, there will also be a higher idle value, for example, in the case of cold weather and cold start, because the perfect running state of the engine needs to reach a certain temperature, so when the cold start, the engine will run at a slightly higher speed during this time, this is because the engine needs to quickly reach the normal working temperature, and after reaching the temperature, the idle value will return to the original normal value. If it doesn't come down, then there may be a problem with the engine.

The car is now widely used by people as a means of transportation, the popularity of the car makes people's lives easier and more convenient, and it becomes more convenient to go out, now almost every family has a car as a means of transportation, and the brand of the car is also very numerous, people also have many choices when buying, as a new car to pay more attention to maintenance and observation, the new car run-in is also more important.

When it is found that the idle speed of the vehicle is abnormal, then everyone can go to repair it in time. At the same time, when repairing, be sure to tell the master about the problem of the car, so that it can be dealt with, if it has not been dealt with, then it will definitely affect the performance of the car, which will reduce the life of the car. For some people who are not particularly familiar with the vehicle, you can ask the people around you for help, so that if any problems arise, they can also be better solved.

The idle speed is generally 550-800 rpm, because this can protect our lives, and can also increase the service life of the car, and will not damage the engine, so we must pay attention to this aspect when driving.

It is normal for a car to idle 550 800, if the car idling is very severe, the car will shake, the fuel consumption will be very high, and the battery will run out quickly.

550-800 rpm is considered normal, based on the fact that the engine can be kept running normally, and it can also provide fuel to the car.

At around 500 800 rpm, each car has a different engine and a different idle speed. There is no basis.

Car idle speed is generally 500-800 rpm, car idle refers to the condition of no load, only need to overcome the friction of its internal parts, and do not need to output power. The minimum speed at which an engine runs smoothly is called idling and is one of the five basic operating states of the engine.

Car idling is when the engine is running with no load. That is to say, the clutch is in the engaged state, the transmission is in neutral, and the automatic transmission vehicle should be in the "parking" or "P" gear, at this time, the choke valve of the vehicle using the carburetor fuel supply system is fully open, and the accelerator pedal is in the full release state.

In addition, there is a kind of driving idling, the driving idle speed of the car is the process of the car gearing, do not step on the accelerator, do not touch the accelerator while driving, maintain the minimum throttle valve opening, at this time the speed of the engine and the no-load idle speed is consistent, this is the so-called driving idling.

Different cars will have different idle speeds because of the engine. Generally speaking, the idle speed of the car will not exceed 1000 rpm, and the normal idle speed is 500-800 rpm.

Normally, during the cold start, the idle speed will be faster, because at low temperatures, the engine will have friction, so the engine will automatically adjust the system to make the engine speed faster, so that the engine operating temperature is faster. When the temperature reaches a certain level, the idle speed of the engine decreases.

The idle speed of the engine is set at the factory, and there will not be much difference in normal use. If the engine idles too fast after the vehicle is hot, there is a high probability that there will be problems such as air intake leakage and damage to the fuel injector. If the vehicle shakes violently when idling, it is likely that the engine has too much carbon deposit.

If the idle speed of the engine is slightly higher or lower than normal, you can observe the car after maintenance, and if it is still like this after normal maintenance, then it should be thoroughly tested.

Idling means that the car does not step on the accelerator, but the engine can stabilize the speed value. The idle speed of the car is generally 600 to 800, which is considered normal.

I think it's normal for a car to idle 700 800 rpm; Car idling is when the engine of a car idles and completely relaxes the throttle and pedals.

Under normal conditions, the car idles at 700 850 revolutions per minute; Idling is when the engine is idling and does not step on the accelerator.

What does idle mean? This question should be fairly unfamiliar to beginners. The displacement, torque, and gearbox matching of manual transmissions are basically caused by lightly stepping on the throttle at the start, although under the forced fuel supply of EFI, it is possible to complete the start without a fuel valve in most states.

However, if you look closely, you will find that when the car starts, the idle speed of the engine will instantly drop to the bottom of the liquid. I think the engine is about to stall.

Introduction to Car Idling: Introduction.

Fault analysis According to the principle of engine idle adjustment, under normal circumstances, the opening of the idle control valve is strictly related to the air intake according to a certain function, that is, the opening of the idle control valve increases, and the air intake also increases accordingly. The air intake pipe leaks so that the connection between the air intake volume and the opening of the idle control valve is not strictly in accordance with the original function. The air flow history sensor cannot measure the actual air intake, resulting in inaccurate adjustment of the air intake volume by the ECU, which affects the unstable idle speed of the engine.

Introduction to Car Idling: Hazards.

There is one attribute for the electric locomotive idle speed regulation system. That is, the idle speed is adjusted according to the driver's driving habits to avoid sudden engine stalls. During driving, the driver's driving habits are different, and the correction value learned by the idle system will also be different.

If the driver is often idling and starting, drive at idle speed. Your car's idle speed correction will reach the maximum, the stepper motor's correction step will reach the maximum, and the frequency valve adjusted in the empty ratio will reach the empty maximum proportion. During driving, when the driver presses the clutch to shift, the engine loses load.

This causes a sudden increase in engine speed and does not return to idle for a long time, which is related to gear shifting. In the other state, when a team is formed through development and change, the car starts at idle speed when the car is too close to each other. When you want to change gears, the engine suddenly has a high speed.

If the driver is in a hurry, especially a lady, a friend with relatively little driving experience will lift the clutch. If the gearbox is in gear at this point, the car will rush forward violently. Cause a rear-end collision.

After understanding what idling is and the dangers of idle driving for long periods of time, riders need to pay attention. It is very necessary to develop good driving habits. When driving, safety is basically the first priority.

Millions of car purchase subsidies.

The idle speed of the car will be different under hot and cold conditions, and the idle speed of the engine with good working performance under general hot conditions is generally 550-800rpm. When the car is cold, the idle speed of the engine will be relatively high, generally at 950-1300rpm. When the engine temperature rises to a certain value, the idle speed will drop to a normal value.

In the cold state, the engine needs to enter the normal working environment as soon as possible after the car starts, so when the car starts cold, the engine computer will automatically inject more fuel and burn more fuel than the normal idle speed to quickly raise the water temperature of the engine, so that the engine can quickly enter the right temperature.

Idle speed refers to the no-load operation of the engine, which only needs to overcome the frictional resistance of its internal parts, and does not output power to the outside. The minimum speed to keep the engine running stably is called idle speed, which is one of the five basic working conditions of the engine. The idle speed can be adjusted by adjusting the throttle opening and the idle oil supply.

Generally speaking, idle speed is the lowest speed at which the engine does not shake in the idle range and accelerates well.

The idle speed of a car engine is one of the operating conditions of the engine, so the idle performance of the engine has a great impact on emissions, fuel consumption and comfort. The idle speed of the engine is called idling. The idle speed should not be too high or too low, which will increase fuel consumption, and too low will make the engine idle unstable.

Millions of car purchase subsidies.

The normal engine idle speed is 1100 to 1500 rpm, and the idle condition generally refers to the state when the throttle is completely released and the transmitter runs naturally. The speed of the engine in the cold state will be higher than that in the warm engine state, and the main purpose is to make the engine heat up quickly, and the working temperature has reached the normal working temperature, so that the engine has a good lubrication effect. Reasons why the engine idle speed is too high or too low:

The idle switch is not closed, the intake pipe is leaking, the gas distribution phase is wrong, the fuel injector is blocked or the atomization effect is poor, and the exhaust pipe is blocked. Precautions when the engine is idling: 1. Try to use less high-power electrical equipment, such as air conditioning and refrigeration, high-power audio, and external power supply, which will increase the burden on the battery and the engine; 2. If the engine is unstable at idle, shakes at idle speed or the speed is too high or too low when idling, please drive reluctantly if the chain is broken, check the technical condition of the vehicle in time to avoid faults such as stalling and weakness while driving.