Beiqi wangwei 306a compressor air conditioner. Why is there an engine failure? The light is on and the fan in the water tank keeps turning. What happened?

I showed up a few days ago. I went to my buddy's to fix the car. I looked at it on the computer and said that there was a fire in one cylinder. I cleared the fault code with the computer and replaced the spark plug. Mine just ran 654.38+00000 axioms. Dude said that the oil added recently is not good either. I just filled up a tank of oil, which belongs to PetroChina! ~ mine is the same. The ignition coil of the spark plug has been changed. I am so worried that the fault light is on every day. I bought it for more than three months. This has happened twice. When the engine fault light comes on, it suddenly turns on. The body is still in the back. However, there is no need to restart the engine immediately. There is another problem. After the engine fault light comes on, the car body shakes slightly. Is the engine malfunction causing the engine jitter or the body problem? You go to measure the cylinder pressure, which cylinder valve should resist! Just let the master adjust it! From what you described, I think there is something wrong with the computer program. The repair shop means to cut off the power supply, restore the computer program to the factory state, and erase the shaking memory. If it doesn't work, it means that other sensors are faulty, and the result will not be known until the repair shop tests it. Today, I went to the repair shop for inspection, and found the problems and solutions as follows: Problems found: I started the car this morning, and found that there was still jitter, but it was not as serious as yesterday. It will be fine in a while. The fault light didn't go on, and no obvious abnormality was found on the way to the repair shop. Solution: After arriving at the repair shop and explaining the fault phenomenon to the staff, I asked the master to start testing what kind of instrument similar to a tablet computer was used. Plug in the connector and start the test (engine starts, which side the co-pilot drives). I looked at the Chinese interface. The maintenance master clicked a few times on the testing instrument and looked at it for a while. I didn't see it clearly at that time, and I didn't know how to operate it. The following is the key to detect the fault code, because the maintenance master stopped the operation and cleared the code soon after reading it. There are three lines on it. I didn't read them carefully. The first line is ... engine defect fault ... (which may be the meaning of the title), the second line is two cylinders ... the third line is a cylinder ... After the fire fighting cleared the fault code, the maintenance master went to the main driver's seat to open the engine compartment and screwed it several times by hand. Then he told me not to turn on the warning light after the agreement. After the overhaul, I went to the service desk and asked the service personnel to keep the overhaul list. The service staff actually said that they didn't need to stay, saying that it was no problem. He explained that there were some garbled codes on the chip in the car, so it was cleared, and there was no problem. I repeatedly explained that I need to keep the overhaul list after the overhaul (am I being too tactful), but the service staff just said that there was nothing wrong with the car and there was no need to keep it. What a mystery! ! ! Isn't it stipulated by the manufacturer? I saw a record when explaining the fault phenomenon, so why didn't I get it! Once again, I want to ask the riders which test plug the legendary OBD plug is and what role it plays! The swaying lights are all caused by the fire in the cylinder. I met 1 once, and it doesn't matter. Let's look at my 306 again. When waiting for the red light, I found that the car was shaking, the fault flashed, the idle speed was unstable, and it seemed to turn off, and it returned to normal in about 30 seconds. Fault diagnosis: single cylinder is on fire ... it is necessary to replace the spark plug, high-voltage line, clean the idle motor and throttle ... Go to 4S for inspection. 1. The sensor circuit voltage of air conditioner evaporator circuit is too high; 2. The control circuit of the cooling fan relay is open (high speed). 3. Improper installation of the phase sensor; 4. The relay control circuit of air conditioner compressor is open! Test experts have a headache. My car is the lowest, and it has no air conditioning. Why are all the air conditioning problems detected? After the computer deletes the fault, it will appear again! ! Mine has the same symptoms. . . . Fuel cleaning agent is mainly used to clean the carbon deposit in the fuel system. Fuel treasure can make gasoline burn more fully. I am the 474 engine of 12. This situation happened for a while last year, but it was not as serious as you. I bought a bottle of 19 yuan fuel cleaner from Taobao, and then I was fine. That's what EFI cars do. Just clear the fault code. The problem is not big. It's almost like restoring the factory settings of the mobile phone. If the piston is all right, let's see if the cylinder line has passed through. I met once, but it was not 306. I don't have mine either. I can't add oil. Just stop at Qidong and turn off the engine. One of the cylinders stopped working. Go to the 4s shop and check it with the computer and it will come out! The timing belt was replaced, and there was an oil seal beside the timing belt. Oil began to leak, so the timing belt was replaced when it was repaired. Is the oxygen sensor expensive? Recently, a can of oil has not been changed. Is there any bad oil in the sensor gas? Especially after Beiqi Wangwei 306A air conditioner was installed in a small private gas station, the engine fault light turned on and the water tank fan kept turning. Yes, I tried, but it will be fine in a few days. I went to the store to have a look and said it was all right ||X﹏X | x I had the same problem the other day. I checked it with the computer in the repair shop and found that it was idle. I deleted the fault code. Did it happen again @20 19?