Leak Down Test?

[Byard]

Title says it all, I unplugged what I think are the injector pipes and cranked the engine but nothing came out, it worked fine before the turbo went so I can't really see just standing would break the fuel pump.

Also inside the engine bay when the ignition is on there is buzzing sound from the right hand side of the engine?

I will try to find a picture to point out which bit I mean.

Thanks