What is the fault when the EPC light is on and the car shakes?

[GarrettLynn]

EPC light on and car shaking indicate that the throttle is dirty, the engine has severe carbon buildup, or there is a problem with the fuel quality. The following are the specific reasons for the EPC light being on: 1. A dirty car throttle will affect the air intake and exhaust volume. At this time, the throttle should be cleaned. 2. The brake light is not working, which is an EPC triggered by an electronic system problem. The brake switch and wiring need to be checked. 3. Fuel quality issues. Poor product quality will affect the electronic system during combustion, so the EPC light will come on. Solutions for the car EPC light being on: 1. Troubleshoot the intake system, use fuel that meets standards, clean the throttle body, etc. 2. Remove carbon buildup from related parts and clean them. 3. Rewrite the ECU-related data. 4. The possibility of other faults cannot be ruled out. Specific repairs should be based on the actual vehicle inspection results.