Good day riulex, according to your story about the problem, very well described by the way (you just needed to clarify that it is a vocho) you have possibly a failure in the injectors, these may be (by the model) very dirty or worn the needle , with which they are leaking once the engine stops, since always and for several hours, residual fuel pressure is maintained in the system, then the injector in case of not being sealed, will continue to inject fuel until the engine is exhausted residual pressure, leaving the combustion chamber flooded with gasoline that does not evaporate and that will remain until the next start-up with the consequence that this has, in hot there will be no problem since the injector is not given time to flood the chamber plucked without difficulty, everything coincides with the behavior of your voice, so you will have to take them out and as they are placed in a tester and do a tightness test.