Hello Excuse me I'm intruding have you checked the wires going to the pressure sensor rai on the back side of the flute, they break often, even if looking at them they look good and are broken inside
happened to me and several times and no diagnosis there were errors once only I found rail pressure
try to move it while in motion
which of the two signals on the sensor rail pressure does not find the signal, you will find a power back that is 05v on control board turned on, and varies according to the pressure ol segnrale find on the pressure regulator is not in the sensor