Why do spark plugs and steel wires always break down after replacing the ignition coil

The ignition coil is composed of the main coil, the secondary coil, the magnetic core, the switching triode and other auxiliary components, the main coil is charged by the battery, the secondary coil is discharged and the spark plug is ignited, and the triode is responsible for switching. The charging time is controlled by the battery voltage and engine speed to ensure that the energy of each charge is consistent, the ignition coil has two kinds: 3 wires and 4 wires, 3 wires are positive and negative for the power supply, and the switch controls the ECU instruction, and the 4 wires have an additional ignition detection line, which can detect whether the spark plug is ignited and whether there is a discharge current in the secondary coil.

To put it simply, the ignition coil is a transformer, that is, the voltage of tens of volts is raised to tens of thousands of volts, but the voltage input to the primary coil is provided by the electronic ignition.

2: The reason why the ignition coil burns out.

Mainly the aging breakdown of the insulation layer or the damage of the switching triode, the large spark plug gap will lead to the main coil load, large heating, fast aging of the insulation layer, small spark plug gap leads to large discharge current of the secondary coil, fast heating, fast aging of the insulation layer, the assembled ignition coil may have poor durability of insulating materials, large internal resistance of the coil and fast heating, and the life of the transistor will be shorter if the quality is not high.

If it is always burned out, and it burns out soon after replacement, and why?

Let's take a look at the problem of the generator first, if the power generation is too high, the load of the ignition coil is too heavy, it is easy to burn out, but if the power generation is too high, then the body electrical appliances, such as light bulbs, will often be damaged; Of course, the quality of the accessories is not ruled out, so it is best to measure the power generation first.

If the spark plug gap is too large, adjust the gap or replace the spark plug.

The quality of gasoline is not good, try to change to high-grade gasoline.

If the compression ratio of the cylinder is wrong, adjust the compression ratio.

If there is a program failure in the computer version, you can go to the repair shop and use the computer to test the car and clear the wrong information. If it doesn't work, it may be that there is a problem with your car's transmission.

The power supply voltage is unstable.

The resistance of the high voltage is abnormal, replace the high voltage line.

There is a short circuit in the secondary.

The ignition coil is overheated due to the high primary current of the ignition controller.

It does not work well when subjected to high temperature and high pressure waves.

There is a small chance that it is a problem with the coil itself, so you can try a different brand.

The ignitor manifold does not work well.

Hello, you are caused by a bad ignition coil. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

1.If there is a fire because there is no power, it may be an ECU software failure, or it may be that the coil is being dismantled, because you changed the spark plug high-voltage wire, so let's rule out these two.

2.If there is a fire because there is electricity and no fuel, see if the fuel injector is blocked, and if it is a random misfire completed by low fuel pressure.

3.Is it that the air intake is too low and suffocated, see if the MAF and the filter are completely inhaled, and IAC, this should be called the idle intake valve.

4.Is it that the sensor has input an error signal to the ECU that causes fuel injection and insufficient air intake? For example, the resistance of a temperature sensor in extreme cold is the same as that of the tropics, so it will definitely not function properly.

5.Is there a problem with timing itself, ignition in advance? That's all I can think of.

Hello, this generally won't, it is recommended to replace a set of assemblies to see, what specific car is yours? Hope mine can help you. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello, poor quality. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

In fact, the spark plug is the same as the engine oil, as long as the performance data indicators required by the manufacturer are met or exceeded, the ignition coil will not be damaged under the condition that the spark plug works normally. Damage to the ignition coil will only occur if the replacement mileage of the spark plug is exceeded and the ignition coil may be damaged if the spark plug is not working properly. Moreover, the ignition coil may also break when the spark plug is in normal use.

There are several reasons why a spark plug can burn out the ignition coil:

1. If it is a cold car, the engine will run normally after starting.

But after driving for a while.

The engine is weak.

It was immediately discovered that the ignition coil had been burned. Checks are needed.

In addition to the ignition coil is burned, rule out whether there is any abnormal phenomenon in the ignition system circuit.

2. Another common reason is that the spark plug leakage will cause the ignition coil to burn.

3. Secondly, replacing the spark plug will not damage the ignition coil, unless it is caused by a short circuit inside the replaced spark plug itself and a problem with the quality. The severe engine shaking may be caused by the lack of cylinders, indicating that there are individual spark plugs that do not work before maintenance and replacement, and the spark plugs that work poorly will definitely damage the ignition coil.

Because the quality of the spark plug is relatively poor, the insulating sleeve is not good, and it is taken off after being pulled out more times.

Summary. Hello, dear, the exclusive technician of the car master will serve you, attentively, carefully and attentively answer your car questions, find solutions and solutions to the corresponding problems for you, and will definitely provide you with satisfactory service!Hope mine can help you!

Dear, hello, the reasons for the failure of the vehicle fire are as follows.

First, if the ignition system fails, if the ignition coil and spark plug have been replaced, then the ignition system related accessories can be ruled out.

Second, the fuel system failure, this is the focus of checking the fuel injector, if the fuel injector has a dripping phenomenon, it needs to be replaced.

Third, the problem of the valve mechanism of the vehicle engine, this should check whether the camshaft or rocker arm is worn, and check whether the valve is not tightly sealed.

Third, the problem of the computer board of the vehicle engine, this should be checked with a special oscilloscope to check the ignition and fuel injection signals, and the voltage to see if it is normalIf it's not normal, you need to overhaul the PC version.

Engine misfire Replacing the ignition coil and spark plug is not good What is the reason?

Dear, this question is up to me, it takes a little time to type, please be patient, thank you!

Hello, dear, the exclusive technician of the car master will serve you, attentively, carefully and attentively answer your car questions, find solutions and solutions to the corresponding problems for you, and will definitely provide you with satisfactory service!Hope mine can help you!kiss Hello, the reasons for the failure of the vehicle fire are as follows: first, ignition system failure, if the cherry blossom has been replaced, the fire coil and spark plug, then the ignition system related accessories can be ruled out second, fuel system failure, this focus on checking the fuel injector, if the fuel injector has a dripping phenomenon, need to replace the third, the problem of the vehicle engine valve mechanism, this should check whether the camshaft or rocker arm is worn, check whether the valve is not tightly sealed Third, the problem of the vehicle engine computer board spine debate, this should use a special oscilloscope to check the ignition and fuel injection signal, the voltage to see if it is not hail is normal？

If it's not normal, you need to overhaul the PC version.

Thank you. Hello, dear, I hope that mine can help you Li Zheng I wish you a happy life, and after the conversation is over, please give a thumbs up!Your likes are very important to me, thank you very much!

First of all, the lack of cylinder has little to do with the speed sensor, and there are generally three reasons for the lack of cylinder, 1. No fire (or weak, wrong timing) 2. No oil (or too thick, too much) 3. Mechanical failure (cylinder pressure is too low).

According to what you said, 1. The ignition hardware should be fine, and the control line between the computer and the high-voltage package should be checked for abnormality. 2. Check whether the injector and control of this cylinder are normal. 3. Check whether the cylinder pressure is normal.

After such an investigation, it should be possible to determine what went wrong.