A little history, have had this car since 2000 and have taken care of it.
Did the PCV change, cleaned the sump 3 times.
A couple of weeks ago had the oil pressure light come on. Cleaned the sump again (about 30% clogged with bits but not sludge and nothing metallic) and changed the oil pump. Took it for a 30 km drive to heat the engine and no problem (the oil light would come on at idle when the engine was hot).
Following day was on the motorway and the engine stalled completely. It rev'ed on its own and then stalled. Managed to cruise to the hard shoulder where I had it towed home.
When I start the car it will crank longer than usual, start, rev up on its own to 3000 rpm approx, idle for possibly 1 or 2 seconds and then stall.
I have a check engine light but cannot read the codes. I bought an OBD2 scanner but it would seem that the 1998 9-5 is not EOBD compatible. My OBD scanner works perfectly on my other car.
In the past 3 years I have changed quite a few things on the car including the CPS and Turbo Bypass Valve but have not touched the MAF nor the turbo (still original).
Have checked for vacuum leaks, found a couple which I repaired but it did not change anything.
As it is the month of July in France, most garages are either shut or not taking on more work as they are getting ready to close for holidays. In any case I'm not sure they would have a Tech2 to read the codes and I can't move the car.
Other strange noise which I had never noticed before is a "tic tic" about six times when I turn the the key to start the car but do not start cranking. The sound seems to come from the rear of the engine possibly from the throttle body. Maybe I had never paid attention to it before and it is normal.
Do these symptoms ring a bell for anybody?
Your thoughts would be welcome...