Fiesta 1.4 2003 - Ford Fiesta 1.4 2003 leak-off test - svetlioo

Hello, I want to do a leak-off test by myself but when I removed the air cleaner, I forced a little problems. I can reach the back fuel pipe from the injectors which I should remove to put their the tester's pipes.

I see something like that www.youtube.com/watch?v=FXDzxYYxDsE

the video is not of my car, but mine is the same.

Can you help me with information how can I perform the leak-off test?

Thanks!