What to do if the Honda Civic idles unsteadily?

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 fumes coming out of the car are obviously intermittent, and the exhaust pipe shakes violently, and the engine shake can be clearly felt, 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.

Hello, this is mainly caused by the throttle is too dirty, it is recommended that you go to the repair shop to clean the throttle.

Hello, this situation is generally caused by the engine throttle is too dirty, it is recommended that you go to the repair shop to clean the throttle.

Thanks for using, I hope mine can help you, it would be great if it could help you! If you don't understand something, you can continue to ask, I will explain it to you in detail, and you will definitely get a satisfactory answer......[If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello, the throttle volume carbon is too much, or the spark plug gap is too large, the ignition coil is leaking, these will be abnormal noise idle unstable, I hope mine can help you, I wish you a happy life [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

What is the fault code [There is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello! There are the following reasons for unstable idling.

1.The throttle is too dirty.

2.Poor ignition coil contact.

3.Slight leakage of fuel injectors.

The valve is damaged [There is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

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.

Ask about custom messages].

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.

Honda Civic idle is unstable, in this case, it is recommended to check whether the oil pressure of the oil pump is too low, and whether the gasoline filter is dirty and blocked, causing the oil pressure to be too low, causing the idle speed to be unstable;

Check whether the oil pressure of the oil pump is too low, and whether the gasoline filter is dirty and clogged, causing the oil pressure to be too low.

Hello, is it a problem with the spark plug of the car, and there is a dirty throttle valve and a lot of carbon deposits in the engine.

This should be specifically analyzed, and a system check should be done to see if it is time to change the air intake sensor output selling voltage or something, and to find the cause of the oxygen sensor.

Adjust the ignition timing to see, the answer is, thank you.

If it is an electronic throttle, there will be a phenomenon of idle speed fluctuating high and low after cleaning, and it is good to use a car computer detector to match the throttle.

If it is not an electronic throttle, this is the case, and the reasons are many! Problems with air intake, oil circuits, circuits, etc., may cause unstable idling! It is recommended to use the car computer detector to detect the engine system, read the fault code, and look at the dynamic data flow, and then you can find the problem.

It is best to do computer matching to clean the throttle, at this time, the computer is based on the relevant data of the throttle before cleaning, and it may cause problems such as high fuel consumption if it is not matched. Because the computer has a memory function, it has adapted to the state before the throttle cleaning, and the opening of the throttle valve changes after cleaning (even if it is very small) directly reflected to the computer, and there are two kinds of signals, and the common phenomenon is that the idle speed is high and low or high idling, and the pure grinding is recommended to match with the detection computer.

Hello, I am happy to answer for you I am your car master exclusive technician Concentrate on your intentions and sincerely answer your car questions, and find solutions and methods for you to ask questions as follows: If the vehicle speed is too slow, you need to check the following points? First, check whether the oil inside the gearbox is burning, whether it is deteriorated or too little.

Second, check your vehicle. Is there any stuffiness at the throttle at speed? Check the air filter housing and air inlet for looseness.

Is there any deterioration in the oil?