Why does the Audi EPC light come on and then disappear?

[VanDawson]

Audi EPC light coming on and then disappearing is a condition caused by a fault in the electronic throttle control system. EPC: EPC stands for Electronic-Power-Control, which translates to electronic throttle control system. This is an important controller used to manage engine air intake and engine load. When issues arise, it cannot control engine speed and load, causing the vehicle to enter an emergency state, resulting in engine shaking and, in severe cases, stalling. EPC Light On: When the car's EPC light comes on, there can be various situations, such as faults in the intake system, like leaks or blockages; dirty throttle body, excessive carbon buildup; substandard fuel usage; abnormal cylinder pressure, poor operating conditions; or occasional faults leading to false alarms.