I have just done a fiesta rs turbo transplant into my brothers mk3 escort,everything has been going fine until about a month ago. Basically it will run fine for a few miles then it seems to just cut out or bog out and wont rev, also the amel valve will click like mad. If you switch it off disconnect the amel valve then reconnect it, it will start fine then happen all over again, please can someone help as im out of ideas and going mad.Thanks.