I think P2407 is an evap system fault code, not an EGR system fault. When you filled up did you top off the tank after the handle shut off? Sometimes that will cause gas to enter the evap system and throw a code. Should clear eventually on its own if so. Otherwise, it might be a bad evap pump, valve circuit issue, or maybe a bad cap gasket. None of these should affect performance...basically an emissions thing (the evap canister system captures gas fumes in the fuel tank).
2001 Volvo V70XC
Cold Weather/Touring/Premium packages
08/01 Build Date