What is the fault when the Volkswagen EPC light comes on and how to solve it?

[KateRose]

Volkswagen EPC light on fault problems and solutions are as follows: Volkswagen EPC light on fault problems: Intake system failure, such as leakage or blockage; Throttle body dirty, excessive carbon deposits; Substandard fuel selection; Abnormal cylinder pressure, poor working condition; Occasional false alarms; Valve failure, stuck or carbon deposits; ECU failure. Volkswagen EPC light on solutions: Troubleshoot intake system failure, use qualified gasoline, clean throttle body, etc.; Remove carbon deposits from related parts, clean, etc.; Rewrite ECU related data (this is when other faults have been solved but the light still remains); Other faults cannot be ruled out, specific maintenance should be based on actual vehicle inspection results.