Who knows what happened when Volkswagen Passat suddenly turned off the fire and the epc light came on?

1, epc light is mainly caused by dirty throttle body, which may cause symptoms such as flameout and difficulty in starting. It can be solved by cleaning the throttle and re-matching.

2. The failure of the brake light switch will also lead to this phenomenon.

3. There is a leak in the air intake system, which causes the engine control unit to light the epc warning light after detecting the problem. When the engine is working, do not pull out the dipstick and open the filler cap. Otherwise, the engine controller will misjudge the air leakage at the engine air inlet, and at the same time, it will also cause a fault, which will lead to the epc light being on and the engine shaking.