Laobaolai 1.8T anti-skid light and EPC light are on. What's wrong?

EPC is an engine fault light, and there are five main reasons for the problem:

1. Throttle is too wide: ESP system lights sometimes light up when driving slowly, but most EPC fault lights are related to throttle. Cleaning the throttle can solve this problem.

2. Oxygen sensor failure: This problem is most likely to occur if the vehicle is accompanied by weak acceleration, jitter or abnormal exhaust gas. Oxygen sensors are generally not repaired by the public and can only be replaced.

3. Abnormal data identification of the engine computer control unit: there are few problems with the computer directly, and it is generally enough to re-match the data.

4. Unstable battery voltage: When the voltage is unstable, it is usually warned that the signal smoothness of EPC engine group is abnormal and the battery needs to be tested.

5. Abnormal spark plug or ignition coil: If there is obvious misfire, consider replacing the spark plug or ignition coil.

In addition, if there is something wrong with the brake switch upstairs, it should be the ESP or ABS indicator light, not the EPC engine unit light.