What caused the sudden flameout of Audi A6L when EPC light was on?

EPC refers to "electronic power control", which means that the electronic throttle and control components are out of order. After the vehicle is turned off, the EPC light will always be on. It will not go out until it is started normally. If the EPC system fails, the engine will not shut down and the vehicle can still be started.

If the EPC light is always on or flashing after the vehicle is ignited or during driving, it is recommended that the owner immediately go to the 4S shop or maintenance point for maintenance. Of course, it is also possible that improper operation may affect the engine flameout, and the EPC light may also be on. In this case, as long as the ignition is secondary, the EPC lamp will go out. Under normal circumstances, the frequent lighting of EPC lights is mostly caused by unclean electronic throttle, such as air leakage or poor blockage, so it is necessary to clean the throttle.

In addition, there are unqualified oil products, abnormal cylinder pressure, carbon deposition, ECU failure, occasional failure and other conditions that affect false positives. If the epc light is on, the common fault light is on because there is too much carbon deposit on the accelerator and there is something wrong with the opening angle.

Due to engine misfire and cylinder loss, the throttle valve can't work normally. Air leaks behind the throttle valve, and the detection data of the intake pressure sensor is abnormal. In these cases, the general contracting light will light up. When the above problems occur, you can stop the car and turn off the ignition switch.

When you restart the engine, if the fault light goes out, it is an accidental fault. You can continue driving and take the vehicle to the maintenance agency for maintenance as soon as possible. If the fault indicator does not go out after restarting the engine, it proves that the fault still exists, and you can drive at the same place or at a low speed. If the gas door does not respond, it is recommended not to drive as much as possible. If the accelerator and engine accelerate normally, you can continue driving and drive the car to the maintenance agency for maintenance as soon as possible.