Yeah, as far as I'm aware that's correct. I know they need 250bar to start/run/idle any less and it won't start and throw those codes. Same if it's running, PCM requires x amount of fuel desired and if the injectors are leaking off excess amounts the fuel pressure desired/actual won't match and in worst cases will shut fuel off and that's obviously when it conks out. We normally road test with Ford IDS datalogging fuel pressure desired/actual on the PCMs that support it.

Sometimes when the IDS is updated they take away some of the available things to log on some models which is a pain in the twat.