What is the reason why Skoda epc light is on?

When the light is on, it indicates that the electronic throttle system is faulty, which will affect the normal use of the vehicle. EPC owners should not take it lightly when the lights are on, and the vehicles need to be repaired and tested in time. EPC, called ElectronicPowerControl in English, is the electronic adjustment of engine power (electronic throttle). Gasoline engines generally use electronic throttles. In order to meet the requirements of three-way catalytic conversion, the air-fuel ratio of gasoline engine should be kept around 1. Therefore, the fuel injection quantity is required to be in direct proportion to the throttle opening. The on-board computer will find out the fuel injection quantity in this case according to the throttle opening and engine intake collected by the sensor, so that the air-fuel ratio of the engine can meet the requirements. That is to say, the power of the engine is indirectly controlled by controlling the opening of the electronic throttle of the engine. Generally, there are EPC signs on vehicles. After the key door is opened, the vehicle starts self-inspection, and the EPC indicator light will light up for a few seconds and then go out. If the vehicle does not go out after starting, it means that the mechanical and electronic system of the vehicle has failed. Generally speaking, there are two possibilities for EPC lights to turn on. First of all, 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. Because of the oil problem, the EPC fault light will also light up.