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                  Why does the ignition coil in the car burn out

                  Hits:Updated:2018-12-01 10:12:22【Print】

                    The main coil consists of main coil, secondary coil, magnetic core, switch triode and other auxiliary components. The main coil is charged by battery, the secondary coil discharges spark plug ignition, and the triode is responsible for the switch. Charging time is controlled by battery voltage and engine speed to ensure the same charging energy. Ignition coil has three and four wires, and three wires are positive, negative and switch control of power supply (ECU instruction).
                    Four more ignition detection lines can detect whether the spark plug ignites (whether there is discharge current in the secondary coil).
                  Simply put, the ignition coil is a transformer, that is, to raise the voltage of tens of volts to tens of thousands of volts, but the voltage input to the primary coil is provided by an electronic igniter.
                    Reasons for Burning Out of Ignition Coil
                  The main causes of ignition coil burnout are insulation layer aging and breakdown or switch triode damage. Spark plug gap will lead to large load of main coil, high heating, fast aging of insulation layer. Small spark plug gap will lead to large discharge current of secondary coil, high heating, fast aging of insulation layer. The durability of assembled ignition coil may be poor. High internal resistance of coil, high heat generation and low quality of three-stage pipe
                  The life expectancy will be shorter.
                    If it is always burnt out, it will burn out soon after replacement. What is the reason? Here are some summaries:
                    1. Look at the problem of generators first. If the power generation is too high, the ignition coil will burn out easily if the load is too heavy. But if the power generation is too high, then the body appliances, such as light bulbs, will often be damaged. Of course, the quality of accessories will not be ruled out, so it is better to measure the power generation first.
                    2. If the spark plug gap is too large, adjust the gap or replace the spark plug;
                    3. The quality of gasoline is not good. Try changing to high-grade gasoline.
                    4. Incorrect cylinder compression ratio, adjust compression ratio;
                    5. If there is a program malfunction on the computer board, you can go to the repair shop to check the car with the computer and remove the wrong information. If not, you may have a problem with the transmission of your car.
                    6. Voltage instability of power supply;
                    7. The resistance of the high-voltage wire is abnormal. Replace the high-voltage wire.
                    8. Short circuit occurs in secondary.
                    9. The ignition coil is overheated due to the high primary current of the ignition controller.
                   10. Under high temperature, the high-pressure wave is not working well.
                   11. The very small probability is that the coil itself is a problem. You can try another brand.
                   12. The igniter integrated block is not working well.
                    Ignition coil itself is a transformer, which is similar to the transformer in household appliances. When the voltage changes within the prescribed range, transformer will not be burned. Usually transformer burning occurs when the transformer load is too heavy. So we should try to find out the overload when solving this problem. Reasons for weight or component ageing.
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