Just replaced mass air filter. Hoped that would fix the problem. Put in new air filter. No way. Just purchased it about 6 weeks ago. Previous owner mentioned after sale that sometimes it missed. Car was driven only 8 miles to and from work until we bought it. When accelerating (like from a light), the car sputters and misses.
No repair records?
Then start with the basics. Spark plugs and wires might require replacement.