How to check if the throttle opening and closing of the automobile engine is not flexible?

With the development of society, cars are already very common in our daily life, but we enjoy the convenience that cars bring us at the same time, there will also be a series of problems, today is mainly around the car engine throttle opening and closing inflexible troubleshooting content introduction, I hope to help everyone.

Inflexible opening and closing of throttle valves in automobile enginesTroubleshooting.

If the throttle opening and closing of the automobile engine is not flexible, it cannot ensure that the engine can be supplied with the quantitative mixture required for actual operation, and the pedal linkage mechanism is loose, which is the poor opening of the throttle, and the closure is not tight.

The reason for the loosening of the linkage mechanism of the accelerator pedal is that the length of the soft steel wire rope that affects the opening and closing of the joint door is improperly adjusted. When the accelerator pedal is pressed, the engine speed cannot rise, or the engine cannot emit enough power without pressing the accelerator pedal hard, etc., most of them are caused by insufficient tension of the wire rope.

Workarounds for such failures:

1. Unscrew the fixing bolt and nut of the air filter, open the filter cover and take out the filter, so that you can see the opening and closing of the joint door pulled by the wire rope.

2. If the wire rope bends very little, it means that the wire rope is very tight, even if the driver loosens the accelerator pedal, the joint door can not be completely closed, so the oil supply is not only and the waiting speed is extremely high.

3. There is another inspection method, step on the accelerator pedal and then see if the throttle can be in an upright, that is, fully open state to judge the fault.

Troubleshooting of inflexible opening and closing of automobile engine throttle: Automobile throttle valve, as the name suggests, is a valve that regulates the amount of air. These valves are generally installed in the intake tract of the engine.

On top of it is the car's air filter, and below it is connected to the engine body. Therefore, the throttle is also figuratively compared to the throat of the engine. It is worth noting that this valve is only used in gasoline engines, but there is no throttle valve in diesel engines to control the amount of air entering the engine, and thus the amount of flammable mixture formed inside the engine.

If there is more combustible mixture, then the engine will rev faster, and if there is less combustible mixture, then the engine will rev slower. As a result, the throttle can control how fast or slow the engine revs, which coincides with the role of another part of the car, the accelerator pedal. It turns out that the accelerator pedal of the car is connected to the throttle through a certain mechanical structure, when the throttle is pressed, the throttle will open, and when the throttle is stepped on, the greater the opening of the throttle, and the faster the acceleration of the car.

You can press the accelerator pedal with one foot and see if the throttle can be upright.

Or see clearly the wire rope pulling the opening and closing of the joint door.

I usually pay attention to checking that and that

Open the filter cover, take out the filter, and observe the wire rope pulling the joint door to open and close.

Pedal the accelerator pedal to see if the throttle can stand upright.

Check if there is a problem with the parts, and replace them in time.

You can unscrew the air cleaner retention bolt nut and open the filter cover to remove the filter.

If the pedal linkage mechanism is loose, the throttle valve is not opened well, and the closure is not tight with the main place.

If there is no fuel injection from the carburetor port, it means that there is a fault.

If you are not flexible, you have to look at it more on the plane.

Solutions to throttle failure: 1. Whether the car accelerates flexibly has a lot to do with the dirt of the throttle, and the throttle cleaning can reduce fuel consumption and make the engine flexible and energetic; 2. The main symptoms of throttle damage are engine shake and unstable idling, because throttle is a wearing part that needs to be replaced frequently. As long as there is a situation above the dismantling of the void, after eliminating other possible faults, it is the failure of the throttle sensor, and it must be replaced in time; 3. That is to say, the throttle is dirty, and the vehicle is shaking at idle; It is not easy to ignite a cold car; The tachometer hand is unstable at idle (unstable at idling); 4. The composition of the electric throttle can be roughly divided into the following parts:

Throttle valves, solenoid actuators, electric chamber by-burner meters, controllers (some do not, directly managed by the ECU), bypass valves. There are two types of fault characteristics: hard faults and soft faults.

Hard faults refer to mechanical damage, soft faults refer to dirty, disordered, etc.

Throttle. The reason for the opening is too small The throttle valve has a large opening, which is generally due to carbon deposition in the throttle.

If there is too much opening, too much carbon deposition will cause the engine to idle.

Flame-out. The method of cleaning the throttle gate: 1. Clean the sludge in the throttle body with carburetor cleaning agent, especially around the throttle valve, too much sludge will fill the gap of the valve in the throttle body; 2. Subsequently, spray the telescopic rod of the idle motor with carburetor cleaning agent, and then scrub the oil sludge with a cloth to expose the metallic luster, and wash the oil sludge exposed on the motor shaft together; 3. After careful cleaning, a bucket of cleaning agent is almost used up, at this time the throttle body is already very clean, carefully install the three electronic devices, use the remaining cleaning agent to wash off some of the oil stains outside, and install the throttle body as it is; 4. Remember to connect the three electronic devices on the throttle body, otherwise the computer will automatically alarm when the key is turned on in the final detection.

Many friends don't know when the throttle fails, in fact, the judgment method of throttle failure is very simple, today I will share with you a measurement method about the electronic throttle.

1.If this is the case with your car, sometimes it will automatically refuel, and then sometimes it can't be refueled, and not long ago it changed to a new throttle valve somewhere else, and recently it showed a fault, and then the fault reported the failure of the electronic throttle. In view of this fault, we can first use a multimeter to define the six wires of this electronic valve and make a qualitative line.

Our most traditional method is as long as you know what the voltage standard of the six wires is, you can judge the quality of the line and the throttle and the computer version of the banquet, look at the computer this voltage signal one and signal two are volts and volts respectively, all the car six lines of the throttle voltage signal one and signal two voltages add up to equal to five volts, the grounding wire we use a grounding wire to connect the two sets of signals, the grounding wire we have also verified, and this voltage is equal to the line, it is to drive the throttle drive motor copy, It is two wires, two are equal voltages, this car reported a throttle failure, we did a check for him, the line of this car is no problem, including the signal displayed by the computer version is also no problem, we can use the computer to see, its data flow one and two also coincide.

<>2.The next is that this is more likely to be the throttle valve damage or the plug is false, of course, the throttle has just been replaced, the damage may not be big, and the other possibility is that the plug is caused by the plug is false. First of all, we give it a plug to deal with, because the original lead who reported the fault may not be able to contact the signal of throttle signal one and signal two, we can use the probe to test the plug line to see if there is a problem with the plug's line, too long has not been replaced and the signal cannot be received, and it is not a problem with the plug in this way.

Faults can be troubled by touching or pressing, so that you can determine if there is a problem with the throttle.

We can check it with some professional equipment, so that we can see if there is a fault or not.

First connect the car to the computer, and then check if there is a throttle failure**, if not**, there is no fault.

A broken throttle will cause the car to appear: the engine speed is unstable, the high and rapid speed does not fall, and the engine is difficult to start, especially the cold start; The engine is unstable or not idling; The engine is difficult to start. The throttle valve is a controllable valve that controls the air entering the engine, mainly to control and regulate the air intake of the engine.

After the gas enters the intake pipe, it will mix with gasoline to form a combustible mixture, so that the work of combustion is done. It is connected to the air filter and the engine block, which is known as the throat of the automobile engine. There are two kinds of throttle valves: traditional cable pull type and electronic throttle, and the traditional engine throttle control mechanism is connected to the accelerator pedal at one end and the throttle linkage plate at the other end through a cable (soft steel wire) or a tie rod.

The electronic throttle valve mainly uses the throttle position sensor to control the opening angle of the throttle according to the energy required by the engine, so as to adjust the size of the air intake.

Hello, I'm helping you sort out the answers to your questions, please wait a while Hello, the consequences of ignoring the failure of the electronic throttle valve are very serious, for example, if you suddenly can't refuel while driving, then it will be troublesome. This is the main core of the economy, and it must be managed.

Questions. Will it break down on the road?

There are also 200 kilometers to get home.

Unstable idling. Are you there.

If you can afford to increase the throttle and just idle unsteadily, you should be able to drive up to 200 km/h.

Questions. Good.

But if the throttle is bad, you can only be algebraic, and you can't afford to add the throttle, you have to know this.

It will even turn off the flame.

Personally, I suggest that you get off the highway and find a nearby repair shop to repair or check it out.

Questions. Good.

Thank you. Okay, okay, you're welcome, I wish the boss a happy National Day, a smooth journey, a smooth journey, big fish and big meat. I hope the boss will give a thumbs up, thank you, have a good trip.

Questions. Thank you.

Happy National Day. Have a nice trip to the boss.

If I can help you, please give me a thumbs up Thank you!

Dirty throttle: The vehicle is shaking at idle; It is not easy to ignite a cold car; The tachometer hand is unstable at idle (unstable at idling);

Causes: Oil vapor is a major reason, in the normal operation of the engine, crankcase exhaust gas must be there, especially with relatively low-grade engine oil, then more, in the specific design, one of the crankcase exhaust gas system is connected to the throttle front. Congratulations, it's very likely that some of the hotter crankcase exhaust gas may go back through the hole to the throttle valve, and at idle speed, this part of the hot crankcase exhaust gas gradually cools down with the intake tract, and finally the temperature is so low that it becomes an oil film deposited near the throttle, hehe, this oil film plays a decisive role in further absorbing dust and fueling the waves.

On the other hand, the crankcase exhaust gas system is connected to the throttle valve, and this exhaust gas will also directly contaminate the vacuum pipes, including the fuel regulator.

There is another important reason: in the process of driving, high-end and low-speed are indispensable, and neutral coasting is indispensable, and at this time, it is possible that the mixture containing hydrocarbons sometimes produces a backlash phenomenon. Carbon deposits are inevitable when hot hydrocarbons come into contact with cooler air intake system components.

This is also the common black mud of the throttle.

There is also a secondary factor: the filtration performance of the air filter is reduced, which leads to the passage of dirty air mixed with impurities such as dust; Long-term use in dirty environments (especially in the windy and sandstorm conditions in the north), and rarely clean the air cleaner.

Solution: Use high-quality oil; Changing the way of driving that was previously incorrect; In harsh weather conditions, clean the air cleaner frequently and reduce the frequency of filter replacement. Go to a 4S shop or a professional repair shop to clean the throttle regularly, and adjust the throttle opening with a special trip computer.

The cost ranges from 20 to 200.

Oxygen sensor failure: the vehicle does not accelerate smoothly, and even does not go away with fuel or can only maintain a low-speed driving speed, and the speed cannot go up; Severe setbacks.

Causes: It is very important to add inferior fuel, especially the fuel containing lead, sulfur and impurities, basically a tank of use, the oxygen sensor will be wasted, and at the same time, your three-way catalytic converter may also be damaged, but this is a long-term accumulation process, and it will not break down immediately! (Of course, the quality defects of the oxygen sensor itself cannot be ruled out.)

Solution: It can only be replaced in 4s, and cannot be repaired. The cost is around 1200. Don't forget to change the gas station (when you go out, you should pay special attention to refueling at small gas stations in other places), and even complain about him!

There are many throttle failures, such as not being able to start, or stepping on the throttle after starting, resulting in no return in the throttle; Black smoke, high fuel consumption, high idling, and poor acceleration are all manifestations of a bad throttle. If the throttle is broken, the car will not burn and there will be a severe shortage of cylinders. It is recommended to replace it immediately so as not to affect normal operation.

A dirty throttle will cause the vehicle to shake at idle, and the tachometer needle will be unstable when the cold car is not easy to catch fire at idle speed (idle unstable). Oil vapor is the main reason, one of the crankcase exhaust systems is connected to the throttle valve, and part of the exhaust gas of the hot crankcase gradually cools along the intake tract and eventually becomes an oil film that accumulates near the throttle, further absorbing dust and promoting it. When coasting in low speed and neutral at advanced levels, the mixture containing hydrocarbons may produce a backflush phenomenon, resulting in black mud formation on the throttle.

There are also secondary factors such as the deterioration of the filtration performance of the filter element and the long-term dirty environment through which the dirty air passes. The solution is to use high-quality oil, change the wrong way to operate in bad weather, clean the filter frequently and change it less frequently, clean the throttle regularly and adjust the throttle opening with a dedicated trip computer. The symptoms of a broken valve sensor are poor acceleration of the vehicle, the car does not move after refueling, or can only maintain a low speed without increasing the speed, or the car is hit very badly.

Poor quality fuel is the main reason, and the oxygen sensor will be discarded when using a box. In addition, the three-way catalyst can also be damaged. The solution is that it can only be replaced with a new one to 4s, and cannot be repaired.