)Thanks for thr responses guys.Got back from cornwall last night ,god was it windy down there,thought me caravan was going to take off!!!.So back to my headach a6. Will run fine on carb cleaner but can see injection fades with loose injector union soon as revs rise but wont run or idle on own at all. Presently trying different pump settings at the moement ,but maybe a pump problem could have broke injection belt in the first instance.Time for lunch. GEORGE