Technical loss of power

[womball]

hi there
i have a 2008 doblo 105 active as my taxi just about to hit 100,000 mile mark .its just started to lose power wont rev past 3000rpm and seems very flat ive had no engine managment light come up and no fault codes on diagnostic .ive cleaned out the egr and all pipes surounding (very carboned up )did make an inprovment for 200 miles but now gone back to lack of power so any ideas would be great thanks in advanced

 

[antama]

when my 1.3 did this it turned out be the crank angle sensor (after much ivestigation)

 

[fronteratech]

Crank sensors quite popular but you would have an engine light on as it would be in limp mode

Could be fuel filter needing changing or bad diesel