Chilli
That's about it, except for the vapour being more flammable. It is when mixed with air, but will be mixed at the wrong ratio as injectors stay open for a time period, not a metered output. Until liquid fuel is running through the injector, the mixture in the cylinder will be too weak to ignite.
It will often take a few more cranking revolutions when warm, just to purge cool liquid fuel to the injectors. But if you did select enrichment, it would die terribly, just as it started.
The only quick way to clear a flooded injector engine is to pull the injector leads off and crank it. Full throttle whilst cranking won't make any difference.
Modern injector engines will have a water temp sensor that controls cold start enrichment for you.