Having some trouble with a fuel pipe going into injector three (If looking from front of car). It's started leaking and been getting worse over time. Tried cleaning it up and re-seating it today but it still leaked. Stuck a layer of sealant round the pipe and refitted but still leaked. Have now resorted to superglue but suspect it will still leak. Has anyone had this problem before and if so, how did you sort it? I don't see how it could randomly start leaking but nobody has had the pipes off during my ownership so it's puzzling me somewhat.