don't apologise, your english is better than my spanish
the reason i think it is a fuel relate issue is down to the fact that there is no smoke out of your exhaust at all.
if i thought the problem was an ignition related missfire and the fuelling was ok then the injectors would still be pouring fuel in which wouldn't be getting a spark, result would be loads of black smoke as the fuel got burned in the exhaust. probably would even get fuel pouring out of the exhaust as happened to a sprint (marks') that came round a month or so back that had a carb flooding.
seems to me that there is precious little fuel getting where it needs to be.
have you checked the spark plugs to see if they are wet? if you do
have an ignition missfire then they would be wet or black.
my guess is they will be dry and white
could be a blockage in the fuel pump filter or a failing pump. the fuel filter itself could be suss, or the injectors.
anyway of getting a fuel pressure gauage into the lines or taking a pipe off the injectors to see if you have flow?
not that good at injection systems myself but due to the symptoms/vids i do think it is a fuel issue