Wow man, not sure where to tell you to start, they are LOTS of reasons for the engine not to start but, you need to tell us more....
WTS Light? - do you get it when you first roll-on the key?
Tach Movement? - does the tach needle move up slightly when cranking?
Fuel - pump runs? Fuel refilling filter housing? Tank below 1/4?
Is it cranking fast enough? - it won't even TRY to start if cranking really slowly.
Has the "Check Engine" been coming on at all? - codes would be the fastest way to direct you. Unfortunately, it takes a special scanner to retrieve them...
Anytime you run out of fuel, and sucked the very last off the bottom of the tank, if the filter hasn't been changed lately it might be a good time.
What do you mean by "wants to start"? Is it picking-up rpm as you crank? Do you see white "smoke" from the tailpipe?
I applaud his decision NOT to use either
You could try a little Brake Clean into the turbo safely though.