Mate i can tell you its not the fuel pump. and there is no point in replacing all the sensors! If it runs fine on boost and from cold he must know its not the pump?
Don't rule out a gammy starter, A slightly weak starter won't turn over as quickly as a good one, thefore the metering unit flap wont be pulled down enough possibly meaning the car is too lean to start.
9 out of 10.... i thought it was spot on lol stuck at the petrol station

took the plugs out and i think the car is running slightly lean and my timing has been mess about with by some kind of neanderthal bell end lol
Seriously though spunking his money wont fix it. What happens when he has bought all the sensors (which aren't particularly cheap) and it still wont start due to an air leak?
Here are the links
https://passionford.com/forum/ford-e...or-people.html
Read them all! one is a bit of a fault finding guide and tells you how to test the sensors before buying every thing shiny he can see lol
Rob,