The car can t catch fire, and the ignition coil has no power out, what is the reason? How to check w

The ignition coil does not have a high-voltage output, first check whether there is a fault at the low-voltage inlet end, and after eliminating the fault at the low-voltage end, you can judge that the ignition coil itself is faulty and needs to be replaced, and it has nothing to do with the sensor. Hope it helps, I wish you a pleasant stay.

Hello. The absence of high voltage may be due to damage to the position sensor of the crankshaft or misalignment of the timing. If you don't repair the sensor professionally, the basics won't measure the good or bad.

Have a nice ride.

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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.

After the engine is stopped, there is no low-voltage electricity entering the ignition coil, and it can be stopped for a while, what is the reason?

Check the fuse, it is best to use the computer to read the fault code, do not blindly repair, I hope it can help you [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Hello, you first take a look at the curvature sensor, and then look at the insurance, I hope it can help you [If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Check if the fuse is broken [There is a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve. 】

Summary. Hello, I am your exclusive technician, attentive, careful, attentive to answer your questions, for you to find the corresponding problem solutions and solutions! Appearing mine is not the result you want.

You can continue to ask me questions, and you need to describe the question in more detail so that I can provide you with more accurate information.

The reasons why the ignition coil does not have a control signal are as follows.

First, it is necessary to check whether the engine computer board is damaged, and second, the circuit from the engine computer to the ignition coil is broken.

Third, the crankshaft position sensor is faulty.

I hope my service can help you and look forward to your next consultation.

The ignition coil has no signal electricity for any reason.

Hello, this question can give you a perfect reply, wait for me to sort out the information, I'm typing, 2-3 minutes, don't finish.

12 years of modern Suoba has a fuel injection signal, no ignition signal, engine computer, anti-theft computer has no fault code.

Hello, I am your exclusive technician, attentive, careful, and dedicated to answering your questions, and finding the corresponding problem solutions and solutions for you! Appearing mine is not the result you want. You can continue to ask me questions, and you need to describe the question in more detail so that I can provide you with more accurate information.

The reasons why the ignition coil does not have a control signal are as follows: first, it is necessary to check whether the engine computer board is damaged, second, the circuit between the engine computer and the ignition coil is broken, and third, the crankshaft position sensor is faulty. I hope my service can help you, and I look forward to your consultation.

It can only be said that the open circuit voltage is high, and the load voltage will be reduced, and when the spark plug is not ignited, a voltage of several thousand volts will be added to it to forcibly break down the spark gap, and the voltage will be lower when the spark occurs. As for electrocuted people, it will not be under normal circumstances, but it is not absolute, after all, the characteristics of high-voltage coils in automobiles are not very soft. It can still output a certain amount of power.

It mainly depends on the type of ignition coil, whether it is a single-cylinder independent ignition or group ignition, for independent ignition, first see if there is no power, or a cylinder ignition coil is out of power, and there is no power, first check whether there is a problem with the external wiring of the ignition coil. The ignition coil of a certain cylinder is out of power, which may be due to damage to the internal coil of the ignition coil.

Summary. Hello, if you can't play, first use the computer to check the engine system to see if there is a fault code, followed by the oil pump pressure and spark plug flashover to see if it is normal, and the camshaft and crankshaft sensor to see if there is a problem.

My car sometimes can't catch fire, hello, if you can't play, first use the computer to check the engine system to see if there is a fault code, and then the sail is to stare at the oil pump pressure and spark plug jump plexus and fire to see if it is normal, and there is the camshaft and crankshaft sensor to see if there is a problem caused by the car.

The detection is not faulty**, the ignition is not on fire, it will be good to wait a while.

Check the oil pump pressure first to see if there is a problem.

Sometimes the hot car is also on fire, but every time it doesn't catch fire, after a while, it's all right, and it's like this every time.

It has a lot to do with oil pumps and curved position sensors.

Every time I can't ignite, I sit in the car and wait for a while, and the last time I went to the car repair shop, I couldn't detect the fault code with the computer.

If there is no fault code, use the pressure gauge to check the oil pressure.

Or I'm going to get a different crankshaft sensor.

It can be caused by abnormal working after being heated.

Ask about custom messages].

Summary. The engine ignition coil is normal, it is grounded by the power supply, including the signal electricity, if the ignition coil power supply is abnormal, check the fuse problem.

Hello, happy to answer your questions.

The engine ignition coil is normal, it is grounded by the power supply, including the signal electricity, if the ignition coil power supply is abnormal, check the fuse problem.

Which fuse is yes?

Check all the fuses of the fuse box.

Is there anything else possible?

Back. There is no other possibility.

As long as there is no power supply, fuse issues and line breaks should be considered.