Sputtering 1997 Volvo 850 GLT 2.4L Turbo Sedan Sun-Roof and New Tires Cold A/C

This Volvo. (according to the original owner). started it's life here on Ebay. It sat in that owner's drive way for many. many years without much use. I bought it and drove it for 2 years until this point. At 102. 00 miles it started spitting and sputtering out of nowhere. Have no idea what it could be and don't have the funds to find out. There are several other issues with vehicle. but not serious:- A/C blows cold. but the vents control system is shot. so it only blows from the windshield vents and front vents. - Windshield wipers clean about 90% of windshield. - Dashboard is cracked. especially around the air bag area. - Front seats' leather are cracked/torn. - Headliner is gone and replaced with painted mural of night sky. (not by Galileo)There are several pros:Tires are about 2 months old. New trunk hood shocks. New oil and filter. New fuel filter. New air filter. New exhaust vacuum lines. Transmission shifts perfectly. New iridium spark plugs. New Bosh ignition wires. New headlight bulbs. Sunroof works flawlessly. (I was good to this car. )Upon completion of this auction. you will be required to retrieve her. This Volvo is tough. but I think it would be best if you bring a car carrier or tow her to your location. The parts should fetch you thousands. but I hope you will bring her new life once again. If you have any questions. please ask. Thank you!