Good morning BIN2013, I know that like me, you have a very active participation in the forum, perhaps greater, and as several here that we try to complain to the consultant for the basic data of the vehicle in question, to give the most accurate answer possible, I have read you claim for the same to those who tried to help, then what? Do what I say but not what I do? I hope you do not take it badly and try among those who collaborate with the needy users, that this becomes inevitable. Well let's move on to the problem that afflicts you, the Hilux in any of the two engines it brings, has the difficulty that you comment from 80/90000 km. and for the following, cold and up to a temperature of 40º the priming pump is timed for about 5 to 6 "to pressurize the low circuit and load the high pump, instead exceeding the mentioned temperature, hardly if it does so for 1 "by mandate of the ecu, since the system" should "maintain the pressure. and here is your problem, hot and during the time it is stopped, even for a minute, the priming pressure will be insufficient for the high pressure to generate no less than 150 bars necessary for the EC to enable the injectors, if You do not have how to measure the pressure at the time of the start, spray it with spray start engines by the admission and if you march you know. Note: the loss of pressure in the low circuit can come from the pump check valve or the fuel filter, however, I insist, before touching anything you have to measure the pressure, even when running, which at idle speed should measure between 350 and 400 bars, both cold and at service temperature.