How to solve the p2 122 fault code?

In case of p2 122 fault, first check whether the line is open and normal, replace the accelerator pedal, and finally solve the p2 122 fault by computer matching.

P2 122 fault code, applicable to all automobile manufacturers, indicates that the circuit of accelerator/accelerator pedal position sensor/switch D is low.

Throttle: A controllable valve used to control air entering the engine. After entering the intake pipe, it is mixed with gasoline (different cars have different design mixing parts) to become combustible mixture, which participates in combustion and does work. Four-stroke gasoline engines are generally like this. Throttle is the most important component in today's EFI automobile engine system. Its upper part is the air filter, and the lower part is the engine block, which is the throat of the automobile engine. Whether the acceleration of a car is flexible is closely related to the cleanliness of the throttle.

In the Electronic Throttle Control (ETC) system, the function of the accelerator pedal position (APP) sensor is to transmit the position of the accelerator pedal to the throttle control module in the form of an electrical signal, which serves as a reference for the throttle actuator to control the throttle opening. The fault causes include the accelerator pedal position (APP) sensor circuit open circuit or short circuit to ground, APP sensor itself fault, electronic control module (PCM or ECM) fault, etc.

(Photo/Text/Photo: Li Shuiqing) @20 19