Volvo S40 2.0D 136KM 2004 - Difficulty Starting, Mileage 158,000, No Errors, 300 Bar Pressure

Hello. The problem concerns a car with a mileage of 158,000. engine 2.0D 136KM 2004. For some time the problem with starting up has started, i.e. during the day, it happens that I cannot start the car during the day. After the night it will fire and after driving a dozen or so kilometers and leaving, say for an hour, it does not want to start. The starter is spinning, the battery charged, zero errors after connecting to the computer, the pressure on the injection rail is 300 bar. And he lights up once and then not. Where to look for the cause? I will be very grateful for all suggestions. Best regards.

You have to make logs during start-up as it does not want to fire ... in addition to pressure, it is important:
does he see the turnover
is there a synchronization (shaft sensor)
voltage on the injectors
what temperatures he sees
fuel flow
best regards

Problem solved. The reason was the muck on the flow meter.