206 1.4 Hdi Idling variability

Hi;
2006 206 1.4 Hdi 224.xxx at 1 year I have the vehicle
After making 40-50 km (as the ramp goes up and down again), the car cuts off the gas late
In other words, it does not leave the gas, but it does this even if I do a lot of roads in the city.
He screams even though I take my foot out of the gas while shifting.
When I shift up, it throws itself up Why might it be caused?

It is useful to check the turbo hoses

Accelerator pedal malfunction. Connect to a pp2000 and read the code. No need to turn on the malfunction lamp to read the code. You should see it as an intermittent malfunction.