What happened to Volkswagen Touareg EPC lamp?

The reason why the EPC lamp lights up is as follows:

EPC light is mainly caused by dirty throttle body, which can be solved by re-matching after cleaning the throttle;

There is also a leak in the air intake system, which causes the engine control unit to light the EPC warning light after detecting the problem; Also, the failure of the brake light switch can also lead to this phenomenon.

The main reason why the engine fault light is on is that the throttle valve or the engine has too much carbon deposit, and the mixture ratio is out of balance after the oxygen sensor fails, which is easy to make the engine fault light on.

The reason why the new car is bright is probably because it uses lower-grade fuel.

Reminder: If you drive at a low speed in the urban area for a long time, this phenomenon is easy to occur. Although it is no problem to continue to use the vehicle after the engine fault light is on, such long-term use will definitely increase the fuel consumption of the engine, so it is recommended to determine the cause of the fault and eliminate it.