407 accelerator pedal malfunction code

friends my car 407 1.6 hdi my car has a low performance i press the gas the car does not accelerate Your knowledge about the subject or is there anybody experiencing this problem

I forgot I changed the accelerator, the problem is the same again

The problems with the foot pedal may not only be related to the pedal. You may experience this problem when there is a malfunction in the vehicle's fuel system, which separates the fuel air mixture.