Ask about the Honda Civic idle problem

Low idle speed generally causes engine shake and is difficult to start in winter. After a long time, the fastening mechanism such as the ground screw is loose and other problems, the normal EFI engine should be maintained at 1100-1300r min. Yours is a little lower. Recommendations:

1. Upgrade the trip computer.

2.Manually adjust the opening angle of the engine intake valve, or pull the wire preload.

3.Try to replace the intake sensor, the Civic's VCET engine may be used with the intake flow sensor, let the 4S shop replace it.

The previous methods are more general, which I summarized in my study, I hope it will help you!

After watching it for a long time, do you think the idle speed is too high or the idle speed is unstable? If it is too high, you should start with the water temperature sensor and oxygen sensor, and you can't blindly brush the computer, because the computer determines the engine idle speed and fuel injection through the readings of these two sensors.

And the current car is not advanced enough to correct the output power according to your driving preferences, and even the supercar is just reserved for the driver a few sets of driving schemes, which can be selected by pressing the button, it is impossible to have the ability to learn by itself, and it is mostly an excuse made by the mechanic.

Idle speed is too high is not good for the car, one is high fuel consumption, the other is to increase unnecessary wear, especially if the amount of fuel injection is not right, it hurts the machine. So it should still be taken seriously.

Idle jitter can view the pointer fluctuation of the idle speed meter, the general performance is not good combustion, if it is a new car, there will be no problem of damage to idle components, because the combustion requirements of the turbo direct injection vehicle are very engaged, or clean the oil circuit first, before the idle pointer fluctuation idle jitter in the fuel tank after adding Si Youpu fuel additives to run two tanks of oil is completely good.

In the long run, there will be no major problems, and it is possible to learn on your own. If you can run long distances, you might want to be faster.

That's a problem'The 4S shop is also a deception.

You seem to be this car'sIdlingIt is not possible to adjust the group. If the idle speed is not normal, it should be a problem with the control system, which needs to be repaired before talking about the Honda Civic.

With the introduction of the eighth-generation Civic in 2005, the eighth-generation Civic achieved the goal of all sedan models in all sales regions except Europe.

Eighth-generation Civic exterior

In terms of appearance, the first impression of the eighth-generation Civic is that the integrity is very strong, the streamlined design from the front to the rear of the car, showing a forward swooping posture, which is the biggest feature of its hunger or stool, in addition, the whole car is very simple lines, and there is no trace of redundant design power, the eighth-generation Civic has two displacement options.

The chassis used the previous generation of front MacPherson rear multi-link suspension. Gearbox.

There are options such as 5-speed manual and 5AT. It is worth mentioning that the eighth-generation Civic also launched a hybrid version of the 2007 model with an electric motor in China, so that it failed to stir up any waves, and more than ten years ago, consumers' trust in the hybrid was still quite low.

After the vehicle has cleaned the intake valve, the flap is still in trouble according to the original formation movement, which is equivalent to not closing in place, but the difference is that the carbon deposit has been cleaned. So the air intake will be a little more than normal. to cause idling.

Tall. This.

In this case, computer programming is required.

If you don't, you will need to drive for a long time before the engine computer adjusts and recovers.

Once the throttle.

After the body sludge is removed, the ECU still controls the throttle opening according to the ruler or according to memory, and the opening of the air intake volume will inevitably increase at this time, resulting in an increase in the idle speed, and it will take time and repeated learning and memory to return to the optimal idle speed.

Summary. Hello, don't click to end, I'm textual to give you the full answer, 2-3 minutes.

Hello, don't click to end, I'm textual to give you the full answer, 2-3 minutes.

There are only 500 passes, and the air drive can't afford it.

For this car, the idle speed is low, first of all, you need to check whether the opening data here is normal under the throttle with Wang, and you need to see if there is any problem with the opening of the sleepy travel data.

The air conditioner couldn't afford to drive.

Is there a problem with the throttle?

Everything else is normal is low idling, only 500 transmissions, and can't drive the air conditioner, what's going on.

Look at the throttle opening data here, if the opening data is too small, then there is a problem with the throttle sedan car dust posture, and the other is that the computer-controlled throttle opening data is too low.

How to fix the computer-controlled opening data is too low, in this case, it is necessary to adjust the throttle of the computer data, and adjust the throttle opening a little more.

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Main causes of idle jitter:

1.Serious engine carbon deposits: Cars always have the problem of carbon deposits, including cylinder carbon deposits, throttle carbon deposits, spark plug carbon deposits, intake carbon deposits, etc.

When the engine has too much carbon deposit, it will affect the ignition energy, air intake efficiency and air-fuel ratio of the car, resulting in the unstable power output of the car, and the phenomenon of idle speed and acceleration jitter appears.

2.Unstable oil pressure: If you have cleaned the engine carbon deposits, cleaned the throttle, replaced the oil gasket and spark plug, etc.

And when idling, you still find that the body shakes, it is recommended that you go to the 4S shop to check whether the oil supply pressure and intake pressure sensor are normal, if the oil pump supply pressure is abnormal, or the intake pressure sensor value is wrong, and the work is not good, it will cause the body to shake.

3.Engine cylinder shortage: Engine cylinder deficiency mainly refers to the engine one or more cylinders are not working properly, which is generally manifested as:

The exhaust gas flowing out of the car is obviously intermittent, and the exhaust pipe shakes violently, and the engine shakes clearly, sometimes accompanied by abnormal noises. This is mostly related to ignition coil failure.

4.Aging of engine parts: Shake in the car is also associated with the aging of the engine feet (also known as claw pads).

The engine foot is actually the shock absorber system of the engine. The engine feet are responsible for absorbing slight vibrations when the engine is running. If there is a problem with the engine base, these vibrations can be transmitted to the steering wheel and cab, causing vibrations at idle.

Solution; The best way is to clean the oil circuit, clean it regularly, and use PNF fuel additives to solve the above problems caused by carbon deposits. The fuel quality is not very good or the initial fuel of the new car is stored for too long, resulting in a rapid increase in the colloidal composition of the oil circuit, which will continue to pollute the fresh fuel and cause no good fuel to participate in combustion in the later stage, and the carbon deposition exceeds the standard, which is especially common for China VI vehicles. We can only gradually alleviate most of the problems by maintaining clean oil circuits.

It can be said that the combustion is not good, and it cannot be said that it is carbon deposit, only poor combustion during the production period will lead to carbon deposit. That's what you don't burn well.

Poor combustion is directly related to the oil circuit. Carbon deposition does not mean that Xiaochang Lao must shake, but if it burns badly, it must shake. You can clean the oil road, don't look at your kilometers less on the oil road will be fine, this quick bend is not your decision, is the fuel company's excellent product decision.

After encountering, the new car should pay attention to the moisture problem of the fuel tank and the impurities and excellent products of the oil circuit, because the gas station must regularly clean the underground oil storage tank, and the oil before cleaning is not added to the private car. The ratio of the oil road of a private car to the underground tank of a gas station is not considered sealed.

Therefore, the car should also clean the oil circuit regularly. The prevention is very simple, you can use the company's additives to clean it once, so as not to let the problem continue and cause greater losses. I checked the car in the 4S store, because the master has not found the problem of the auto parts, but the combustion is not good can not be detected, the biggest possibility of hitting the car is the shaking caused by the dirty oil road and bad combustion, either the combustion is not good or the carbon deposits, and the carbon deposits have nothing to do with you, you you are very new in this car, the combustion is not good for a long time will be carbon deposits than the price, now not to, but the same bad combustion will lead to shaking.

The oil at the gas station is cleaned once in February, at least six times a year, and our car fuel tank oil road oil is a few Please result, the oil at the gas station is not all refueled in the tank, so you can add the fuel additive additive to the fuel tank and run a tank of oil will basically solve the above problems, and don't worry about the dirty problem.

The Civic's normal idle speed is around 750 rpm. At the moment of cold start, the idle speed is about 1500-2000 rpm. Once the engine water temperature returns to 90 degrees, the idle speed will remain within the specified stable value.

Car idling is the minimum speed set to ensure that the car runs smoothly without stalling. As long as these two conditions can be met, the lower the idle speed, the better. As long as the engine can run smoothly, it doesn't shake or stall.

The lower the idle speed, the more fuel-efficient it is, because the idle car has to be parked there, otherwise it doesn't need to burn fuel to drive. If the idle speed is high, there is only one drawback, and that is fuel consumption.

When the engine works at low temperatures, the wear and tear can be severe. In order to avoid wear, when the engine computer detects that the engine temperature is low, the computer will control and increase the idle speed so that the engine reaches the operating temperature as soon as possible. When the engine reaches operating temperature, the computer adjusts the idle speed back to normal speed.

However, if the vehicle remains idling fast after a hot car, there is something to be aware of. At this time, check the vehicle and solve the problem as soon as possible. Prolonged idling can cause heavy carbon deposits in the engine, causing the car to shake.

When the engine is running, if the accelerator pedal is fully released, the engine will idle. When adjusting the idle speed, the speed of the vehicle should not rise or fall suddenly, otherwise it will cause early wear and tear on the engine, and it is best to go to the car maintenance department to adjust. There are many reasons why an unstable idle fails.

As long as the idling motor fails, it will directly affect the instability of idling. Second, the fuel system is not clean. Check the oil system and try adding fuel cleaner.

Third, there is the issue of the ignition system. If some of the spark plugs of individual cylinders are poorly ignited, it will also cause unstable idling.

Millions of car purchase subsidies.

If the Honda Civic notices significant body shaking when starting or stopping the vehicle without turning off the engine, it may mean that the vehicle has the following four forms.

1.The engine has serious carbon accumulation and coarse slag.

The most common cause of car shaking is that the throttle bench is too dirty or the fuel injector is too much carbon. When the carbon deposit inside the engine is too much, the gasoline sprayed out by the cold start fuel injection head will be absorbed by the carbon deposit in large quantities, resulting in the mixture of cold start being too thin, making it difficult to start, in this case, only when the gasoline absorbed by the carbon deposit is saturated, it is easy to get on the car, and the gasoline adsorbed on the carbon deposit after the car will be sucked into the cylinder by the vacuum suction of the engine for combustion, and the mixture becomes thick, and the combustible mixture of the engine is dilute and thick, causing idle shaking after cold start.

In addition, the lower the temperature, the greater the amount of oil required for the cold start, and the more the presence of carbon deposits will affect the smooth cold start. The solution is to clean the oil circuit and check whether the idle motor has carbon deposits that should be cleaned.

2.Problems with the ignition system.

Check the working condition of the spark plug, high-voltage wire and ignition coil, the ignition system is not working well, and the spark plug is not in good condition and the spark plug is not in good condition. The solution is to check the spark plug for excessive carbon accumulation and replace the spark plug.

3.The oil pressure is unstable.

If you have cleaned the engine deposit, washed the throttle, changed the oil pad and spark plug, etc., and still found that the body shakes when idling, it is recommended that you go to the 4S shop to check whether the fuel supply pressure and the intake pressure sensor are normal. The solution is to check the oil pressure and replace the parts if necessary.

4.Aging of engine components.

Car jitter is also associated with aging of the engine feet. The engine foot is actually the suspension system of the engine, and the engine foot is responsible for absorbing the subtle shake of the engine when it is running, and if there is a problem with the engine foot, these vibrations will be transmitted to the steering wheel and cab, causing shaking when idling.