09 Classic Sylphy has a throttle opening of 0 when idling.

What you want to ask is why the throttle opening of 09 classic Sylphy is 0 when idling. Carbon deposition. According to car home's inquiry, carbon deposition will cause insufficient combustion of gasoline, leading to engine jitter, zero throttle opening, unstable speed, difficult start-up, easy flameout and high engine temperature. With the development of science and technology, these problems can also be solved by not hitting the bottle.