940 b230ft random engine stalling

[Jelle9990]

Hello fellow Volvo guys!

My manuel 93” 940 have developed a new problem....
It just recently started to die out on my when it’s warm. Like I said in the title it comes randomly.
I have tried to trigger it but reving high by babying the throttle, easing into it, flat out at low rpm but no results, it took it like a champ. I can drive for a long distance on the freeway no problem...

The times it died for me: when shifting from 2nd to 3rd, putting in reverse and even cruising in 3rd and 4th, top of 2nd doing a pull.

The first times it did it, it started up fairly quick but the last couple of times I had to wait a few minutes before it fired back up, It does stutter sometimes when it fails to start... when it drives there is no noticeable difference and pulls and drives smooth.

When it dies the rpm gauge drops to 0 and when I give it a little gas(when still rolling in 2nd or 3rd) it make this “nice” backfire pop so I’m guessing it is not the fuel but the igniting might be the problem? sometimes when Rolling long enough the rpm gauge goes back up to whatever rpm it should be and the car drives perfectly like nothing happend

I have checked the od relay and fuel pump relay and they look like new inside(pics included).It did however sound the same way when i try to start it without the pump relay as when it dies
Any one have had this problem before and yes i have searched the Forums but couldnt find anyone with the exatct same problem.

Best greetings from Denmark