P0222 What is the solution to the fault code?

The fault code of P0222 of Pacific Auto Network is that the circuit of accelerator/pedal position sensor/switch B is low, and the automobile accelerator pedal has two sensors, A and B. If it is really too low, directly change the two sensors (integration). There is a throttle position sensor opposite the throttle cable. Unplug the plug and measure with a multimeter. It is recommended to go to the 4s shop for inspection and maintenance as soon as possible.

The throttle position sensor is also called throttle opening sensor or throttle switch. Its main function is to detect whether the engine is in idle or load condition, acceleration or deceleration condition. It is essentially a variable resistor and several switches installed on the throttle body.

The rotating shaft of the resistor is connected with the throttle valve, and it has two contacts: a fully open contact and an idle contact. When the throttle valve is in the idle position, the idle contact is closed and the idle working condition signal is output to the computer; When the throttle valve is in other positions, the idle contact is opened, and voltage signals with different angles relative to the throttle valve are output, and the computer identifies the engine load according to the signal voltage value; According to the change rate of signal voltage in a certain period of time, whether it is an acceleration state or a deceleration state is identified. According to these working conditions, the computer corrects the fuel injection quantity or controls the fuel cut-off.

(Photo/Text/Photo: Pacific Auto Network Li Caiying)