Stalling and hesitating

Hi, 1995 volvo 850 T5R with 208,000 miles, G-d bless him, just started stalling a bit till it gets warmed up and hesitating a bit on acceleration. Fuel injector cleaner (twice) did not help. Any ideas?

Thanks!

When was the last time the fuel filter, air filter, plugs and wires were replaced?

it’s been a good while – probably 18 mo at least. Time for it now, eh?