What's wrong with Guangzhou Automobile Chuanqi GS3epc lamp?

The EPC indicator light is always on, indicating that the engine and electronic system are out of order. When the car EPC light is on, there are the following situations:

1, air intake system failure, such as leakage or blockage;

2. The throttle body is dirty and has too much carbon deposit.

3. The fuel selection is not up to standard;

4. Abnormal cylinder pressure and poor working conditions;

5, occasional failure, a false alarm;

6, valve failure, stuck or carbon deposition, etc. ;

7.ECU failure.