Dismounted aircleaner top to get the partnumber for the fuel pressure regulator.
Checked hoses an so on and remounted aircleaner top.
Ordered a new regulator , will arrive next week , but now the fuel consumption isn´t varying any more.
And it seems it´s going cheaper to , during a 150km ride today.
Must have been some connector , hose or something else i touched under aircleaner top.
Bengt