Hello everyone, thank you very much for accepting me in the group. I recently owned a mazda 3 bl 1.6 diesel 109 horsepower and noticed that the car's pressure regulating valve is always moving even without accelerating. After the car warms up the valve makes a noise and so I went to the place where I bought the car and I was told that the valve is always moving to prevent the geometry of the turbo from getting stuck and that is normal in these cars. Can anyone confirm? The car has not lost power and runs normally. Thanks in advance to everyone