V90 Diesel Rail Pressure Sensor Fault

Sounds familiar. Had similar issues with my old Alfa Romeo, but it was the crankshaft sensor. It would also stall at idle. Do you see any other codes?

Crankshaft sensor, huh? Interesting. No other codes, just the rail pressure one. Could a dodgy crankshaft sensor mimic rail pressure issues? Or are we chasing separate gremlins? Is the crankshaft sensor as difficult to get to as the rail pressure sensor?

In my Alfa, the crankshaft sensor fault caused issues with the fuel injection, which lead to stalling. With no other codes showing, you're probably correct in suspecting a fuel pressure sensor issue. It's probably best to take it to a workshop if you do not want to mess with the high pressure fuel system. It can be dangerous!

Thanks for the insight! I took it to a shop. Turns out the rail pressure sensor was indeed the culprit. 240€ later, she's running like new. Appreciated!