Why does the Volkswagen Touran's EPC light come on and the throttle not respond?

[VonAna]

This indicator light will illuminate when there is a malfunction in the engine throttle control system or when a fault occurs in the engine system. Common reasons for the EPC light to come on include: Excessive carbon buildup in the throttle body, causing issues with the opening angle. Misfires or cylinder failures in the engine leading to abnormal throttle operation. Air leaks behind the throttle body, resulting in abnormal data detected by the intake pressure sensor. These conditions will trigger the EPC light. If it is a static fault, the vehicle may not respond to throttle input. In such cases, a diagnostic scanner is needed to check the engine fault codes and replace the faulty components based on the codes. Replacing the bulb: If the EPC light turns off automatically after replacing the bulb, it will not pose a hazard to driving. If the bulb is fine but the brake lights still do not work, the brake light switch might be faulty. This requires a visit to the repair shop for replacement. In such situations, it is important to maintain a safe distance from other vehicles and avoid sudden braking to prevent rear-end collisions.