What's wrong with EPC of Ruifeng m3?

Let me help you answer your question. EPC is an electronic throttle. When this light is on, it means that the electronic throttle of the car is out of order.

EPC will also light up before the car starts, which is a process of computer self-inspection. When driving, if the electronic throttle is normal, then the EPC will go out, and if the electronic throttle is faulty, the EPC will always be on. I want to read the fault code with the decoder. Troubleshooting. Also clear the fault code.

There is also cleaning the throttle. EPC will also light up. At this time, it is good to cooperate with the throttle.

I hope it helps you, but forget to adopt it.