Imcata

Hi, Maybe i can find someone who experienced similar issue: - car in discussion: Impreza Diesel 2.0D, 2009 - started my car ok, drive for ~ 10 km, then noticed that i could not get above 2500 rpm - when I pressed the clutch, engine stopped - I could not re-start it for several attempts (battery ok, starter worked, looked like it was about to start but then stalls) - no check light, nothing on the OBD reader - eventually managed to start (not doing anything different, just waited for a while on the side of the road) - i was able to raise above 2500 rpm, but the car was vibrating a lot - at a random moment, it started to rev to maximum by itself (>5500 rpm) . Could not stop it manually, but it did stop after an error occurred for “rpm exceed” - while having the high revs, there was also a lot of white smoke coming from the exhaust. - I did not restart it after this event. I read some threads, some would blame the crankshaft sensor (was not able to find its location until now), some blame the turbo having leaks/shaft broken, some blame the high pressure injection pump. Any of you had similar experience? What could be the blame for this? Many thanks in advance