hello all. ok lets start, when ticking over it sounds rough ( turn of then back on sometime problem go's away) taken out the maf plug not much difference, my man change the fuel filter, NO good and now think's it could be the turbow, i seem to get a loss of power. ( sunday on motorway going 70mph and at 2000rpm pedal floored). i now seem to get a shudder movement when in lower revs......... any help please peter