Hi Scotty, my car does a weird thing where if it sits outside for a while (12-24 hours) in cold weather (8-0 Celsius or 47 - 32 F) during the first start of the day it starts strong and easy, but after 5 seconds of running the engine completely shuts off. Revs dont start gradually dropping or anything. It just cuts out. If I start the car again the problem disappears and everything runs smoothly. Usualy, pressing the gas pedal slightly during that first rough start resolves the problem (the car doesnt shut off), though I notice a strong dip in revs during the time in which the engine should theoretically shut off. After those 5 seconds, the car runs fine. The car in question is a Volvo S60 year 2005 2.4 D 120 kw (D5244T5 engine). There are a few OBDII codes (UEM-0004, BCM-E000 and CEM-1A5F).Thanks for the answer
Some basic info about rough cold start of diesels
https://allinthewristauto.com/diesel/when-your-diesel-hard-start/
Codes:
Perhaps @dan has some experience with that engine