Spark plug and ignition coil problem 10

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.

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.

The ignition coil is the ignition coil and the spark plug is two yards.

The ignition coil consists of a primary and secondary coil and an iron core. The primary coil has thick wires and few turns, and the secondary coil wires are thin and have many turns, which is equivalent to a step-up transformer.

The working principle of the spark plug is to send a pulse high-voltage electric discharge from the high-voltage wire, break down the air between the two electrodes of the spark plug, and generate an electric spark to induce the mixed gas in the gas cylinder.

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.

These two things are ignited independently in a single cylinder in one place.

1. First replace the spark plugs of each cylinder, and then start the vehicle to determine the working condition of the engine, which is relatively simple, and the spark plugs have no maintenance value.

2. If the spark plug is replaced and the fault does not change, then replace the ignition coil, start the vehicle to observe the fault phenomenon, and the ignition coil has no maintenance value.

3. Through the above two steps, the fault can definitely be solved, and the spark plug can also be replaced at the same time as the ignition coil, because the spark plug must be replaced after 40,000 kilometers of use.

Symptoms of 1 broken ignition coil If you use a separate ignition coil for each cylinder, a broken ignition coil will cause one cylinder in the engine to not work. If two cylinders use one ignition coil, the ignition coil will not work if the ignition coil is broken. When the engine lacks cylinders, the smooth operation of the engine will decrease, and the engine will appear to shake abnormally.

The ignition system of a car engine is mainly composed of a spark plug and an ignition coil, and the spark plug is a wearing part that needs to be replaced regularly.

If the spark plug is not replaced for a long time, the electrode gap of the spark plug will become larger, which will affect the ignition of the spark plug.

If the spark plug is not replaced for a long time, carbon deposits will also appear on the electrodes of the spark plug, which will also affect the ignition of the spark plug.

The ignition coil will also be damaged after long-term use, so the ignition coil also needs to be checked and replaced regularly.

If the ignition coil or spark plug is broken, it will cause the engine to be out of cylinder, which will reduce the power and also affect the smooth operation of the engine.

When using the car in ordinary times, car enthusiasts must maintain and replace the wearing parts on the car on time, only in this way can the car be kept in good condition.

If you don't maintain it on time and replace the wearing parts on time, the car will be in poor condition.

The difference between an ignition coil and a spark plug.

The ignition coil and spark plug are not one component at all, the ignition coil can convert 12V into thousands of volts, only then the spark plug has enough ignition energy. The ignition coil is connected to the spark plug.

The spark plug is a wearable part that needs to be replaced regularly.

At the end of the engine's compression stroke, the spark plug ignites the combustible mixture, which can only be burned to push down the pistons.

The electrode gap will become larger when the spark plug is used for a long time, which will affect the normal ignition of the spark plug.

Carbon deposits can also occur on the electrodes after prolonged use of the spark plug, which will also affect the ignition of the spark plug.

If the ignition of the spark plug is poor, it will lead to insufficient combustion in the engine, which will lead to an increase in fuel consumption and a decrease in power in the engine.

The ignition coil is not a wearing part, but it will be damaged if it works in a high temperature environment for a long time.

If the ignition coil is broken, it also needs to be replaced immediately, otherwise it will affect the normal operation of the engine.

When using the car in ordinary times, it is necessary to replace the wearing parts regularly and maintain them on time.

When replacing wearing parts, be sure to use ** accessories, otherwise it will affect the normal operation of the car.

When installing the spark plug, be sure to tighten it according to the specified torque. (Photo by Q&A: Q&A called the beast) @2019