Gas Gauge not working on my 08

when i fill up the gas tank i the gauge doesnt immediately show full. It takes about 50 miles before it starts giving an accurate reading. My service engine soon light is on and is setting off some fuel preasure sensor. what is wrong and does anybody have an idea how to fix it.

Probably a fuel level sensor code,It may be covered under a recall.

Call the dealership with your VIN number and ask them if it qualifies.