Steve Robertson wrote:
As to your question about where the engine gets its fuel to hot start ...
Even
though you killed the engine with the mixture control, a bit of fuel will
still
leak out of the injector lines and into the intake after the engine is shut
down.

In article , G.R. Patterson III
wrote:
Interesting. Since the reason usually advanced for using the mixture to shut
down is
that the engine will be starved for fuel and consequently will not fire if
the prop
is moved on the ground, it seems that fuel injection is less safe than
carburetion.
At least in this regard.

A better answer might be that retarding the mixture creates too lean a
mixture for ignition.
For example, if the engine does not quit with the mixture retarded
(chugs, diesels), you can then advance the throttle and create a leaner
mixture.