Hi, i have a problem with high fuel pressure pump on my Mondeo Mk4 2.0 tdci 140hp automatic. The dealer told me that the pressure needs to be somewhere between 280 and 320 psi but my pump is making 420 psi. They checked everything injectors, new pump, all sensors and etc. but still everything seems fine. The car have starting problems and acceleration problems because of too much fuel going into injectors. Finally they’re telling me something about software issues on ecu. Plase help.

It might be worth just resetting the learned values of the fuel rail sensor and injectors with Forscan. Then you can start your fault finding again from a clean slate. Especially if the high pressure fuel system has been tinkered with. You could end up chasing your tail otherwise.