03 Four-eye Polo 1.4 Brake to improve idle speed.

What you want to ask is: 03 four-eye Polo 1.4, what is the increase in idle speed when braking? Signal distortion, coil failure, system failure. According to the inquiry, China. Com display.

1. The dirty plug on the throttle position sensor or sensor line causes signal distortion, causing the ECU to idle and not adjust according to the target speed.

2. The reason for the increase of idle speed during braking is that the ignition coil is faulty, resulting in insufficient ignition energy.

3, gearbox or engine electronic control system failure, resulting in unstable work when stepping on the brakes.