R33 skyline

[Blake r33 rb25]

R33 skyline

I have a r33 rb25det Random cut out have changed my fuel pump had a fuel cell so i put a standed one in and still dose it is it coils have been told but whats else is it really need help as it my only car and work full time 

[89CAL]

Can you please take a breath and think before mashing words into a post. Its quite hard to understand what you are saying

Also, if we are going to diagnose it, unseen, over the internet, we are going to need a lot more than -'it randomly cuts out, i changed the fuel pump and have changed it back could it be coils?'

When does it cut out? (Boost, rpm, load etc) what other mods are done to the car? What spark plugs is it running? (And what gap?)
Noone here will ever complain that you have been TOO detailed describing the fault