The car is not stable at idling, how to make the car engine breathe more smoothly?

The uneven idle speed is mainly due to the blockage of the idle channel and the idle valve. The air intake system is equivalent to the human respiratory system, and if the breathing is not smooth, it can easily lead to more serious "diseases". Because the air grid cannot filter all the dust, over time, the throttle body will lose sensitivity due to the sludge formed by the dust, which affects the acceleration performance of the engine.

At the same time, sludge can also clog the idle channel and contaminate the idle valve. However, the key parts of the air intake system of automobiles ——— throttle valves, idle valves, air intakes, etc., which are easy to adhere to and deposit dust to form fouling.

It is recommended that you regularly use AF 3011 High Efficiency Detergent for the air intake system to make the engine breathe more smoothly.

Check and replace the spark plug and high-voltage line, replace the air filter to clean the throttle valve, throttle valve body, pull a high-speed for 5000 kilometers (keep it for a few minutes at a speed of more than 100 kilometers per hour) Pay special attention Before starting the car, open the key to the grid before starting (that is, the meter light is on) and wait for 3-5 seconds before starting This belongs to the habit of physical therapy and maintenance of the car As for what additives to buy at the gas station, use with caution! Hope it helps

There are many reasons for unstable idling, whether your throttle idle motor, whether the fuel injector has been washed, whether your ignition coil ignition energy is enough, whether your spark plug, gasoline grid, whether it has been replaced,

When the engine idle speed is unstable, the idle speed should be adjusted first. If the fault cannot be eliminated after the idle speed adjustment, check whether the idle speed measuring hole and the idle air measuring hole are blocked. If the measuring hole is blocked, it can be cleaned with gasoline or acetone and blown through with compressed air.

If the measuring hole is not blocked, the engine speed should be stabilized at a certain speed, and the middle and lower gaskets of the intake manifold or carburetor should be checked for air leakage.

If the idle speed value of the automobile engine is lower than or exceeds the specified range, there will be stage stalling and unstable speed. Idle instability is manifested as engine shaking and uneven speed when idling.

The reasons are: blockage of the air volume hole of the idle infiltration excavation speed, poor working of the idle device, too weak spark plug spark of individual cylinders, poor sealing of individual valves, air leakage of intake manifold, early or late ignition time, improper idle speed adjustment, etc.

1.Leakage of intake manifold or various valves: There should be no air, gasoline vapor or combustion waste gas entering the intake manifold, otherwise the mixture will be too thick or too thin, and the engine will burn abnormally.

If the leakage level is well placed and only affects individual cylinders, the engine will shake violently, and the idle speed of the cold car will also be greatly affected. 2.Excessive fouling of the throttle and intake:

Excessive carbon and dirt deposits in the throttle and surrounding intake tracts will cause changes in the cross-sectional area of the airway, making it impossible for the regulating unit to accurately adjust the idle air intake, resulting in too high or too low concentration of the mixture, resulting in abnormal combustion. 3.Idle Air Actuator Failure:

Failure of the idle air actuator may affect the accuracy of the conditioning of the idle air. Common causes include damage or hairpins to the throttle motor, damage to the idle motor, duty cycle solenoid valves, and rotary solenoids or hairpins, etc. 4.

Incorrect air intake: The regulating unit sends out the wrong command after receiving the wrong signal, resulting in inaccurate adjustment of the engine idle air intake, which in turn causes the engine to burn abnormally, which is also an indirect cause of idle instability.

1.Intake manifold or various valves leaking: When the location of the air leak only affects individual cylinders, the engine will shake violently, and the impact on cold car idling will be even greater.

2.Excessive fouling of the throttle and air intake: and the change in the cross-sectional area of the air channel makes it impossible for the control unit to precisely control the idle air intake, resulting in the mixture being too thick or too thin, resulting in abnormal combustion.

3.Idle Air Actuator Failure: An idle air actuator failure results in inaccurate idle air control.

Common causes are: throttle motor damage or card issuance; Idle stepper motors, duty cycle solenoid valves, and rotary solenoid valves are damaged or damaged. 4.

Intake is inaccurate: the control unit receives the wrong signal and sends out the wrong command, which causes the engine idle air intake to be inaccurate and the car is inaccurate, which makes the engine burn abnormally, which is an indirect cause of idle instability.

Whether the air intake system will cause idle instability, and why the air intake system will cause the car to idle instability. It has also been found on the Internet that the closure of the air intake system will cause the car to idle unsteadily. Guess the following is to share the information about why the air intake system will cause the car to idle unsteadily.

1.Intake manifold or various valves leaking:

2.When the intake air, gasoline vapor and combustion exhaust gases enter the intake manifold, the mixture is too thick or too thin, causing the engine to burn frequently. When the leakage position only affects the cylinder, the engine will shake violently, which has a great impact on the idle speed of the cold car.

3.Excessive fouling of throttles and intakes:

4.Moreover, the change of the cross-sectional area of the air duct makes it impossible for the control unit to accurately control the idle air intake, resulting in the mixture being too thick or too thin, resulting in frequent combustion.

5.Idle Air Actuator Failure:

6.Faulty idle air actuators can lead to inaccurate idle air control. Common causes are: damage or cracking of the throttle motor; Damage or rupture of the idle motor, duty cycle solenoid valve, and rotary solenoid valve.

7. Dislocation of air intake:

8.The control unit receives the wrong signal and sends out the wrong command, which leads to the inaccurate control of the idle air intake of the engine and affects the normal combustion of the engine. This is an indirect cause of idling.

I hope this article can help you, and the article ends here.