I don't mine being pestered.
I've actually got a suspected injector issue on my FL2, as it's getting a bit spluttery when starting first thing in the morning, and when I leave work, along with a quick puff of white smoke, so I think an injector is draining down while it's not running. I'm currently thinking about how to work out which injector it is, as I don't want to be pulling them out and guessing, due to the hassle reprogramming the ECM every time an injector is replaced.
Can't you pull it out and test it in a cola bottle ?
so you can see it wet fart ... I know yo have to do it one at a time, but it might help ...