I think I have the same issue on my 2003 2.7 Boxster. twice now I have filled up from almost empty with about a 40-50 miles range, and each time when I have got back in the car with a full tank and fired her back up, the Fuel indicator stays where it was and the range stays at 40-50 miles till empty. The first time I drove for 50 miles then re-filled to the brim again just to convince myself there was petrol. Each time it seems to have cleared itself overnight.
Could this be the same issue with the hoses in the fuel tank catching the fuel level float, and if they are positioned near to the bottom, is the best thing to just keep filling up on half-a-tank?
Can anyone direct me to the 2004 Bulletin, which Tool Pants mentioned below please?
Thanks Guys.