Do you know the reason why the car ignition coil always burns out?

1. Principle of ignition coil


It is composed of main coil, secondary coil, magnetic core, switch triode and other auxiliary components. The main coil is charged by the battery, the secondary coil discharges the spark plug and ignites, and the triode is responsible for switching. The charging time is controlled by the battery voltage and the engine speed to ensure that the energy of each charge is consistent. There are two types of ignition coils: 3-wire and 4-wire. The 3-wire is the power supply positive, negative, switch control (ECU command), and the 4-wire has an additional ignition detection Wire, able to detect whether the spark plug ignites (whether there is 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 igniter.


2. Reasons for burning out the ignition coil


The main reason for the burnout of the ignition coil is the aging and breakdown of the insulating layer or the damage of the switch triode. The large gap between the spark plugs leads to a large load on the main coil, high heat generation, and rapid aging of the insulating layer. The small spark plug gap leads to a large discharge current of the secondary coil. Fast, the assembled ignition coil may have poor durability of insulating materials, large internal resistance of the coil, large heat generation, low quality of the tertiary tube, etc., and the service life will be shorter.


If it is always burned out, it will burn out soon after replacement. What is the reason? Here are some of them:


1. Let's first look at the problem of the generator. If the power generation is too high, the ignition coil will be easily burned out if the load is too heavy. However, if the power generation is too high, the body electrical appliances, such as light bulbs, will often be damaged; of course It does not rule out the quality problem of accessories, so it is best to measure the power generation first.


3. The spark plug gap is too large, adjust the gap or replace the spark plug;


4. If the gasoline quality is not good, try changing the gasoline with a higher grade;


5. The cylinder compression ratio is wrong, adjust the compression ratio;


6. If there is a program failure on the computer board, you can go to the repair shop to use the computer to check the car and clear the wrong information. If it still doesn't work, there may be a problem with your car's transmission;

7. The power supply voltage is unstable;


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


9. There is a short circuit in the secondary;


10. The primary current of the ignition controller is too high, causing the ignition coil to overheat;


11. It does not work well due to high temperature and high pressure waves;


12. There is a very small chance that the coil itself is the problem, you can try another brand;


13. The ignition integrated block is not working well;


The ignition coil itself is a transformer, which is like a transformer in a household appliance. When the voltage changes within the specified range, the transformer will not be burned. Usually, the transformer will be burned when the transformer is overloaded. This happens, so When solving this problem, we should try our best to find out the cause of the overload or the aging of the components.


If there is no fire or weak sparks suddenly during driving, an infrared thermometer or hand touch can be used to determine whether the ignition coil or ignition module has an internal short circuit or open circuit fault. When judging the fault, it can also be restarted. No matter whether it can be started or not, the temperature of the ignition coil casing can be measured to judge.


①The ignition coil is overheated: the surface temperature of the ignition coil is greater than 95℃, indicating that the ignition coil is short-circuited and must be replaced.


②Ignition coil is too cold: The surface temperature of the ignition coil is equal to the ambient temperature at startup, indicating that the ignition coil is broken inside and must be replaced.


③ Overheating of the ignition module: the temperature of the ignition module is higher than 100 ℃, indicating that the ignition module is short-circuited and must be replaced.


④Ignition module is too cold: The ignition module and ambient temperature are equal at startup, indicating that the ignition module is internally open and must be replaced.


Haiyan is a professional ignition coil supplier in China, with years of manufacturing and wholesale experience, welcome to contact us!

Comments

Post a Comment

Popular posts from this blog

Guide to Making Custom Dust Bags, Drawstring Bags

Guide to Making Custom Dust Bags, Drawstring Bags - Pouches or Drawstring Bags, Dust Bags, Drawstring Bags. Drawstring bags go by many names, and we've used them in this guide. They include custom drawstring bags, custom drawstring bags, custom dust bags, pouches or produce bags. Creating a simple custom dust bag or drawstring bag can lead to various decisions. To give it its own identity, you can choose fabrics, different drawstrings to close it, stoppers or "ends" on the drawstring, and embellish it with prints, embroidery, labels, and emblems. The list of finishing options is vast, so this guide is designed to help you navigate those choices. What is the purpose of your drawstring bag? Knowing what you need your custom bag for will help guide the answers to the questions you need to determine before pricing your own drawstring bag. E.g: Is it for leather products, so you might need a fancy dust bag for leather handbags? Or are you a gift shop and need gift wrap? Are yo
Read more

7 Eco-Friendly Tote Bags for Shopping

What Does the Plastic Bag Ban Mean? Some of the most adaptable people in the world, so the plastic bag ban will certainly not disrupt their daily lives for long. While the bag waste reduction law comes with a particular financial burden for shoppers，someone took a stand against plastic pollution. Reusable Tote Bags All Should Try This Year 1. Heavy Canvas Shopping Bag for Solo Shopping This heavy canvas shopping bag is large enough to hold the one-week worth of groceries, toiletries, and some New York spring flowers with no effort. Enjoy the full side and bottom gusset that gives your bag shape and support at all times. The side pocket allows you to store your keys, phone, or other accessories safely and with easy access. While the solid canvas natural nuance matches any outfit you can think of, the colored trims offer an elegant, simple, yet stylish look. 2. Foldable Cotton Tote with Pouch for Spur-of-the-Moment Shopping Do you know those days when you have no intention to go shoppin
Read more

Washing methods of various functional fabrics

Nowadays, clothes are getting more and more beautiful, and there are more and more types of functional fabrics, but the wrong cleaning method can easily make the clothes fade and deform! Don't wait for a good piece of clothing to be ruined and regret it. Xinbimei Textile will give you some cleaning techniques to extend the service life of the clothes! silk clothes Although silk clothes are comfortable to wear and look noble, they are easy to jump and need to be handled carefully. Washing: Use neutral soap flakes, neutral detergent or special silk detergent. First dissolve the detergent in warm water, soak the silk clothing for 5 minutes after cooling, rub it with your hands, and rinse with water. When washing bright-colored silk clothes, put a little white vinegar to fix the color. After washing, it should not be exposed to the sun, and should be hung in a ventilated place to dry. When drying in the shade, the fabric should be unfolded without overlapping. Ironing: If ironing is re
Read more