when it starts the injection is not ? said to start the combustion of the mass of fuel that is entering the room, the combustion occurs after the injection of the two phases are staggered at a certain time, i.e. the time necassiorio to be some physical phenomena that I, this time difference ? the delay that c'? between the start of injection and start of combustion, the delay depends on many factors, and I quote the most? important afr, intake manifold pressure, exhaust gas recirculation, quality? of air and fuel.. etc...then it seems to me now to understand that to adjust the timing advance, for our purposes ? ... reflect on two things, turbo pressure, and exhaust gas recirculation... what do you think of us? that I wrote... I continue to reiterate that it is still an opinion, concrete someone that amendment advances not c'?..