What is the cause of engine failure of BYD Qin plusdmi?

What is the cause of engine failure of BYD Qin plusdmi? BYD Qin (view the transaction price | detailed explanation of the model) What is the cause of the engine failure of plusdmi? Cause of failure of BYD Qin plusdmi engine: 1, carbon deposit on throttle or engine; 2. When the oxygen sensor fails, the mixing ratio is unbalanced; 3. The insulation layer of high voltage line is easy to break down after aging. If the water thermometer and the oil pressure warning light don't give an alarm, the car can still run, but at this time, pay attention to controlling the speed and go to the maintenance station for inspection in time. Take the flagship model of BYD Qin plusdmi202 1 55KM as an example: it is a compact car introduced by BYD, with the length, width and height of 4765mm, 1837mm and 1495mm respectively, equipped with 1.5L naturally aspirated engine, with the maximum power of 8/KLOC-0. @20 19