Engine Code P1130 - Voyager 2.8. 55 Plate

[leeoliver2010]

I went away for 2 weeks came home and fuelled car up on way home from airport, after 5 or so miles engine light came on after few days went out didn't put me in safe mode or anything then after a week put more fuel in and again light came on this time for week or so key dance code p1130 light went off for a day then back on car running fine tho

[crispinchurch]

change both fuel filters

[leeoliver2010]

Are they easy to change or is it best to get garage to do it? Any idea on £££s