Diagnostic equipment is only as good as the person operating it. Usually only one person in the workshop is sent on the training course and then expected to show all the others which is useless and unfair on the equipment in my experience.

Going to try injector leak test at weekend. I hope that resolves issue.
How far do you have to twist the pipe at the top of them to take it off? 45 degrees? 90?

Defo need a MAF though. was alright after cleaning for a bit but unplugged it couple of days ago and what a difference. Synergy 2 i think is needed but first to sort these injectors.