The epc light is on and the engine flashes.

When the EPC light and the engine light are on at the same time, the mechanical and electronic systems of the vehicle fail. Generally speaking, there are two possibilities for EPC lights to turn on. The first case is that the throttle is dirty and needs cleaning. In another case, the brake light is not on, so it is necessary to check the brake switch and wiring. Due to the oil problem, the EPC fault light will also light up. Therefore, we need to check and solve the oil problem carefully to avoid the occurrence of faults. The automobile throttle is an important component for supplying gas to the automobile engine, and its main function is to control the intake volume according to the engine load. Driving for a long time may lead to carbon deposition on the throttle, so that the throttle is dirty and the car will stall while driving. When cleaning the throttle valve, it is not necessary to disassemble it, but the sealing part of the inlet steam must be cleaned, and the idling motor must be removed to thoroughly clean it. However, borrowing and cleaning syringes has advantages and disadvantages. It is generally recommended that the maintenance station should not be disassembled and cleaned, so as to avoid problems such as oil leakage and air leakage, and waste the owner's time. When the EPC light is on, the engine will flash. This may occur for the following reasons: 1. EPC lamp is mainly caused by dirty throttle body. This situation can only be solved by cleaning the throttle and re-matching. 2. There is a leak in the air intake system, which causes the engine control unit to light the EPC alarm lamp after detecting the problem. If the crankcase ventilation system leaks, it will also cause this fault. Or serious vacuum leakage is not a problem, but only a slight leakage, and the control unit cannot effectively detect it. If the compensation adjustment made by the control unit exceeds the limit allowed by the internal program of the control unit, the control unit will judge that there is something wrong with the electronic throttle system and the EPC fault light will light up. 3. However, the actual reason why the EPC light is on is not necessarily the function problem of the electronic throttle control system itself, and the failure of the brake light switch can also lead to this phenomenon. Therefore, when solving EPC problems, we need to check and maintain the mechanical and electronic systems of vehicles in detail to ensure the normal operation of vehicles.