Roewe 550 accelerator is broken. What will happen?

There are many phenomena of bad throttle, such as the engine can't start or the throttle doesn't return after the engine starts; Black smoke, high fuel consumption, high idle speed and poor acceleration are all signs that the throttle is broken.

If the valve position sensor is damaged, it will cause engine jitter and unstable idle speed. Because the position sensor of the throttle valve is a signal to detect the throttle opening. The engine computer adjusts the fuel injection quantity and ignition time according to the throttle opening.

If the throttle sensor is broken, the engine computer can't receive the signal of throttle opening correctly, which leads to the inability to accurately adjust the fuel injection quantity and ignition time. If the throttle is severely cut off, the engine may not start.