Audi a5 engine and epc light are on at the same time, 4 kilorevolutions per kloc-0/20.

When the epc light is on, it shows that there are mutual existence in the system, and the fault code needs to be read by the detector to determine the fault range. Generally, the throttle failure occurs when the EPC light is on. It is recommended that you go to the repair shop to read the fault code EPC with a computer, and it is also recommended to clean the throttle. The diagnostic instrument checks "F22 Oil Pressure Switch Unexpected Sum" of the engine control unit.