TD4 Injector testing

Hi,
Think i may have an injector problem. Car started & i drove it a few hundred yards before i parked up to pick something up. Approx 1/2 hour later, when i went to go home, car would not start, but turning over fine. Called AA & he squirted a bit of easy start into intake & it started & ran fine. After reading through some of the threads on here, i think a leaking injector may be the problem. Does this sound likely? My question is though, how do i test them to find the duffer? Is it something i can do myself, or is it a job for the local independant?
Cheers
Rob

you need to do a leak off test, if you do a search on here, I think chaser did a write up.

it does sound like a failing injector, had exactly the same symptoms on mine, including the easy start thing.