How to deal with the light of Jianghuai Ruifeng s3epc?

1, air intake system troubleshooting, fuel selection criteria, cleaning throttle body, etc. Cause: air intake system failure, such as leakage or poor blockage.

2. Remove carbon deposit and clean related parts. Causes: dirty throttle body, excessive carbon deposition, etc.

3. Rewrite the relevant data of ECU (this is a situation that cannot be ruled out after solving other faults). Cause: ECU failure. The possibility caused by other faults is not ruled out, and the test results of the real vehicle shall prevail before maintenance.

The role of EPC

EPC is called engine electronic stability system, commonly known as electronic throttle system. The system is mainly composed of engine control unit, engine wiring harness, throttle, accelerator pedal, brake switch and manual transmission clutch switch. In addition to the above components, if there is a problem with the valve lift AVS system, the EPC fault light will also be lit.

If the throttle control is normal, you can choose to drive slowly to the maintenance organization for processing. At this time, the maintenance personnel will read the fault memory of the engine control unit through professional diagnostic equipment. According to the content of the fault code, proceed to the next inspection and confirmation. The lighting of Audi A6l EPC is usually caused by serious dirty accelerator or damage to accelerator or accelerator pedal, brake light switch and valve lift AVS control valve.

Refer to the above? Baidu encyclopedia -EPC