p0463 fault code

In my 2006 model 206 1.4 hdi vehicle, I have a high signal level fault in the p0463 fuel level sensor. Has anyone ever had a problem with it before?

Probably your tank float is faulty, sir. I think the problem will be solved by replacing the float.

Sir, even if the float is faulty, I fill the diesel, it works proportionally, I have more problems, I bought 150 TL diesel while the pointer was burning yellow, but the value in the tank did not increase. These 206s have a strange electronics, when the value in the tank does not match the value on the indicator, I think it sends an error code. only or can we find it in special services