18 Hong Guang S3 shows the fault code P0 12 129. What does that mean?

18 Hong Guang S3 shows that the fault code P0 12 129 refers to the problem that the throttle is too messy.

Generally speaking, this fault code is caused by an unclean throttle. You can read the electronic door system first to see if the data of electronic accelerator pedal opening and accelerator opening match at idle speed and acceleration. Then you continue to refuel. Do you think the data opened at the end of the term will change the height? If not, you need to check six lines from the throttle position sensor to the computer version. Is there a problem? If the line voltage is appropriate, it is a throttle problem. If the line voltage is not suitable, it is a throttle problem.

If the six line voltages from the throttle position sensor to the computer version are suitable, you can change the throttle. When idling and accelerating, the electronic accelerator pedal opening and throttle opening data match.