What happens if a car s ignition coil burns out?

If the ignition coil is broken, the engine will vibrate severely, just like a tractor; Give oil, the car is powerless; Shake, the high-end position can't go up; If it is broken, the fault light will be on; The refueling truck sits backwards, then rushes forward, the car is abrupt, the engine shakes when idling, and the exhaust gasoline smell is very strong. The ignition coil burns out mainly due to the aging breakdown of the insulation layer or the damage of the switching transistor, the large spark plug gap will lead to the main coil load, large heating, and fast aging of the insulation layer, and the small spark plug gap will lead to large discharge current of the secondary coil, large heating, and rapid aging of the insulation layer, <>

After starting, there will be violent regular shaking in the idle state, up and down fluctuations in the speed rules, and even flameout, and it is easy to stall at the start, the acceleration is weak, and the fuel consumption increases dramatically! The spark plug was soaked with gasoline when it was removed! If it continues for a while, the engine control unit will not be injecting fuel into this cylinder, and if it does not limit the injection of this cylinder, it will damage the three-way catalyst.

If two are broken, most cars will still work! The engine will shake very badly!

When accelerating, sometimes the power is cut off, resulting in acceleration weakness and shaking. The ignition coil does not ignite, causing the car to not catch fire. The refueling truck sits backwards, and then rushes forward, the car is abrupt, the engine shakes when idling, the exhaust gasoline smell is very strong, and the engine vibrates badly, just like a tractor; And it works at a high temperature.

When the engine lacks cylinders, all the mixtures that do not burn enter the exhaust system, and when they come to the three-way catalytic converter, they will burn immediately when they encounter high temperatures, which makes the temperature of the three-way catalytic converter rise sharply, and it is easy to damage the three-way catalytic converter.

Decreased engine power (weak acceleration).The unburned gasoline directly enters the three-way catalytic converter of the exhaust pipe, causing the catalyst to fail and then causing the emission to deteriorate, and the unburned gasoline will also be ignited in the high-temperature exhaust pipe, causing the exhaust pipe to discharge, and the serious fault lamp will be lit. , affect the power of the engine and the smooth operation, affect the exhaust gas and water temperature, pay attention to these points generally drive a few kilometers is not a problem, it is recommended to find the nearest repair shop for maintenance, so as not to cause other parts failure!

First of all, it will not be able to start again, and it will lead to the circuit **.

There will be significant body shaking. Observing the exhaust pipe mouth, the exhaust air flow of the car has obvious intermittent intermittent, and the sound of "burst" can be clearly heard.

If the ignition ring of the car burns out, then the car may not start, so I suggest that it be repaired as soon as possible, so that the car can be used.

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.

The ignition coil of the car is burned out by various factors such as the quality of the product itself, the mismatch with the automobile model, the improper design and installation of the product, and the short circuit in the ignition system.

There are two sets of coils in the usual ignition coil, the primary coil and the secondary coil. The primary coil uses thicker enameled wire, usually about 200-500 turns of enameled wire about millimeters; The secondary coil uses a thinner enameled wire, usually about 15000-25000 turns with about millimeter enameled wire. One end of the primary coil is connected with the low-voltage power supply (+) on the vehicle, and the other end is connected with the switchgear (cut-off).

One end of the secondary coil is connected with the primary coil, and the other end is connected with the output end of the high-voltage line to output high-voltage electricity.

The reason why the ignition coil can turn the low-voltage electricity on the car into a high voltage is that it has the same form as the ordinary transformer, and the primary coil has a larger number of turns than the secondary coil. However, the ignition coil works in a different way than the ordinary transformer, the working frequency of the ordinary transformer is fixed 50Hz, also known as the power frequency transformer, and the ignition coil works in the form of pulses, which can be regarded as a pulse transformer, which repeatedly carries out energy storage and discharge at different frequencies according to the different speed of the engine.

When the primary coil is connected to the power supply, a strong magnetic field is generated around it as the current increases, and the iron core stores the magnetic field energy; When the switchgear disconnects the primary coil circuit, the magnetic field of the primary coil decays rapidly, and the secondary coil induces a very high voltage. The faster the magnetic field of the primary coil disappears, the greater the current at the moment of current disconnection, and the greater the turn ratio of the two coils, the higher the voltage induced by the secondary coil.

Hello dear! The ignition coil generally has a service life of 100,000 km. When the engine is running, there are often tens of thousands of volts of high-voltage pulse current on the ignition coil, because it works in a high-temperature, dusty, and vibrating environment for a long time, it will inevitably produce aging and even damage, and if it is not replaced in time, it will have an impact on the working performance of the engine.

In addition, the damage of the ignition coil is mostly caused by improper use. If the ignition switch is not turned off after stopping, the thermal transformer resistor will be burned, and the regulator limit voltage will be too high, which will heat up the coil and destroy the insulator, resulting in a broken or short circuit of the coil. The spark plug has been "hanging the fire" for a long time, causing the carbon gold of the distributor cover to fall off.

**The high-voltage wire is not plugged in tightly, and the insulation of the jack is damaged after long-term flashover and external injury. The line is not fastened firmly, resulting in the lapping of iron, and the ignition coil is damp for a long time, resulting in a decrease in insulation, and cannot produce high-voltage electricity. The gas mixture in the cylinder is ignited by a high-pressure electric spark generated by the ignition, so the following situations may occur during operation.

1 The ignition ability deteriorates. With the increase of kilometer mileage, due to carbon deposit, pollution and insulator damage in the spark plug work, the secondary circuit leakage, which affects the secondary voltage can not rise to a large value, so that the ignition energy decreases or breaks the fire.

2. The working condition of the power breaker deteriorates. It will affect the secondary voltage value, such as oxidation, ablation, contamination of the contact of the breaker, poor contact bonding surface, contact gap misalignment, weak movable contact spring, capacitor damage and poor contact of the primary circuit, etc., all of which will reduce the primary current of the ignition coil and decrease the magnetic field change speed of the ignition coil, and the strength of the high-voltage spark will be weakened, and the ignition can not meet the working requirements of ignition.

3 The technical condition of the ignition system has deteriorated. This is mainly due to the natural wear and tear of parts, electro-erosion, chemical corrosion, and fatigue aging of materials. I hope my answer will help you and have a great day!!

1.Let's look at the generator first. If the power generation is too high, the ignition coil can easily burn out if it is overloaded.

2.If the spark plug gap is too large, adjust the gap or replace the spark plug; 3.Gasoline is not of good quality.

Try to switch to high-grade gasoline. 4.If the cylinder compression ratio is incorrect, adjust the compression ratio; 5.

If there is a program failure on the computer board, you can go to the repair shop and use the computer to check the car, as long as the wrong information is cleared. 6.The power supply voltage is unstable. 7.

If the resistance of the high-voltage line is abnormal, replace the high-voltage line; 8. Secondary short circuit; 9.The ignition coil is overheated due to excessive primary current of the ignition controller; 10.Affected by high temperature, the high-pressure wave is problematic and not easy to use; 11.

There is a small chance that something will go wrong with the coil itself. You can try something else. 12. The ignitor manifold block works poorly.