What's the matter with Sany tank car stepping on the brake and filling door?

The throttle valve is too dirty, carbon deposition is serious, and electromagnetic interference appears in the electronic control part.

The dirty throttle of Sany tank car may cause unstable idle speed control, and sometimes the engine automatically speeds up; Solution: clean the throttle.

Another situation in which Sany tanker can only refuel when stepping on the brake is that electromagnetic interference occurs in the electronic control part, and the output voltage signal of the accelerator pedal is disturbed, which leads to unstable signal, thus affecting the engine speed control.