Короче Макс пришел и все порешал:
Цитата:
When after a longer trip with high load car is parked, engine is heated up and there is no cooling air stream anymore. So air temperature at intake
manifold increases up to more than 70°C within about 20 minutes (hot soak phase). After this time it slowly cools down to ambient temperature.
If there is a start during hot soak, injection valves and fuel pipes are so hot, that bubbles of vaporized fuel occurs when injection valve opens.
Bubbles of vaporized fuel have a very low density compared with liquid fuel. So injection opening time has to be increased by an hot start factor,
to keep the amount of injected fuel mass constant.
Hot start factor = f (number of camshaft revolutions anzesw_w).
For host start thus the output of characteristic line FSTSNHST is taken.
After a certain amount of injected fuel, bubbles are removed and fresh fuel from the tank reaches injection valves.
Вроде как из доки на МЕ17, если я верно понял.
Так что с тестом с мокрыми тряпками я угадал...