[RedDevil]

It is hot in Mexico right now, I guess?

My '85 Civic had severe vapour lock problems in the heat (in Holland...!) and was hard to get started when still hot. It could even stall when stationary in the heat, like in a traffic jam or just after the occasional mountain climb. Cool down, problem gone.
The problem was twofold: a small leak in the radiator had reduced its cooling capacity, so it ran hotter than intended. The gas boiled in the feed tube so the carburetors ran dry.

Under normal operation new cold fuel kept the feed tube from reaching the boiling point, but when stationary the hot engine managed to boil it.
Once the engine starts cranking the fuel pump will push new (liquid) gas in, but that will take, say, 5 seconds.

Don't know if the same applies to your engine, but I'd say check the temperature on the injector tubes and pump etc. when you experience these problems; maybe vent the hood and/or isolate the cylinder head around the injectors so that they pick up less heat.

For testing you could try cool them before you start to see if that makes the difference.