Dear friends , this subject has been discussed many times , I want to add my experience and I hope it will be helpful for others.
my fuel gauge range was 45% - 95% ,I opened the hole which is located under the driver rear seat and pull the fuel pump assembly that contains the fuel level sender .I made cleaning and maintenance and measured the variable resistor ( found ~ 98 ohms) but nothing changed then a friend told me there is another sender located in a hole under the passenger rear seat and that is correct there is a sender without a pump I also cleaned it and maintained it and measured the variable resistor ( found ~ 178 ohms) .then everything went better the gauge range came down to 0% .
I have collected the below diagram showing the senders connections.
Thanks and good luck to all
Firas

fuel level sender wiring diagram