On our car dashboard, in addition to the speed of the car speed and oil and other prompts, there are also a variety of fault light prompts to tell us the status of the vehicle. One of the most important is the indicator light that many car owners call the "engine fault light", and the icon of this indicator is a bit like a helicopter.
In fact, the exact name of this indicator is not the engine fault light, but the engine pollution emission light, if this light is lit, it means that there is a problem with the emissions, and the problem is most likely to come from the engine, so it is called the engine failure indicator. In addition to starting the self-test, the fault light will be lit briefly, most of the time the fault light is gone, if it appears, you have to keep an eye on it, because this may be a manifestation of a serious engine failure. The reason why the discharge indicator light is lit In fact, the reason why this indicator light is lit is very complicated, we pick a few typical cases to say, the first three are the three most common reasons for this fault light to light up. 1. Temperature correction problem. When it is warm and cold, after the cold car starts, the computer temperature can not judge the huge temperature difference at once, and the problems caused by temperature correction often appear in areas with unstable climate; 2, oil problems. Mainly because of the excessive emissions caused by insufficient combustion of gasoline; 3, carbon deposit problems. When the engine piston has more carbon deposits, resulting in poor gasoline atomization, the emission lamp will be lit because of insufficient combustion;
4. Poor ignition. This is mainly a problem with the spark plug, which may be the aging of the spark plug, or it may be the failure of the ignition coil, which will be accompanied by the more obvious shaking of the vehicle, and there is also a decline in the ignition performance of the spark plug caused by the long driving mileage of the engine; 5, the age of the car is longer. Due to the mechanical aging of the engine caused by the age of the car, the engine working state is poor; 6, the sensor failure. False positive due to sensor. These 6 problems are typical causes of engine failure lights, and there are other reasons with small probabilities, but they are not listed due to space problems.
Engine failure lights on what to do do do not believe a lot of answers inside the engine failure lights on is okay, completely irresponsible grin, this light will not be lit for no reason. In the case of conditions, as long as the highlights immediately pull over, sent to the repair shop or 4S shop for maintenance. If you are on the highway, or you can not send repairs immediately, please remember these operation methods: 1, pullover is the first step, if on the highway, immediately go to the nearest service area, and stop. 2, first of all, to eliminate the problem of gasoline, such as you mistakenly added diesel, or mistakenly added low-grade gasoline
3, if you eliminate the gasoline problem, do not turn off, observe the engine jitter and abnormal sound, if the engine jitter and abnormal sound are obviously more serious than usual, first of all, see if it is not opened for too long, the performance of the spark plug is reduced; if it is not because the opening time is too long, the problem is more serious, it is recommended to send it for repair immediately. 4, if the shaking is not obvious, there is no abnormal sound. It is recommended to turn off the engine, open the cabin cover, observe the oil ruler, and see if the oil is leaking. 5, if the oil is no problem, check the level of the coolant to see if it is too little coolant. These 5 steps, basically can help you eliminate most of the faults, and may even avoid accidents caused by ignoring engine failures, if you still can't troubleshoot the cause, the fault light is still lit after restarting, it is recommended to send it for repair immediately, so as not to lose big due to small losses.
In summary, the reasons for the lighting of the emission lamp are more complicated, and they need to be targeted when dealing with it, but they must not be taken lightly, and they feel that there is no big deal. Follow the steps said by the old driver to conduct targeted investigations, which can help you avoid some risks. Please forward it to those who need it.