engine shut off on startup until I gave her some gas

[cbbepop]

Hey I like some opinions on what's going on
I started the 2001 Boxster S and the engine came to life then went out immediately. No check engine light, dash was on with only the coolant light staying red.
I turned the engine off and on and the same thing happened'
3rd try I gave her some gas, just pushed the pedal 2 times and the engine stayed on and all was fine on the drive back.

Weird...there was no clicking. Is this a fuel pump issue or just fuel vapors?
I'm not sure why I even pushed the fuel pedal...just a stab in the dark. I'm glad it worked.

Any thoughts is appreciated.