What does the EPC light on the Volkswagen Lavida mean?

[OPatrick]

It is usually caused by poor fuel quality. This situation is basically judged to be due to spark plug carbon deposits. Check if the spark plugs are severely carbonized and clean the throttle body. Here is the relevant introduction: 1. Throttle Body: The throttle body is a controllable valve that regulates air intake into the engine. After entering the intake pipe, the air mixes with gasoline to form a combustible mixture, which then burns to generate power. It connects to the air filter at the top and the engine block at the bottom, and is referred to as the throat of the car engine. 2. Classification: There are two types of throttle bodies: traditional cable-operated and electronic. The traditional engine throttle control mechanism operates via a cable (flexible steel wire) or rod, connecting the accelerator pedal to the throttle linkage plate. The electronic throttle primarily uses a throttle position sensor to control the throttle opening angle based on the engine's energy requirements, thereby regulating the amount of air intake.