i bough the car car about a week ago and took it on a 6 hours round trip drive and everything was fine, but i noticed the car has like a dip in power at low rpm after a long drive, you kinda give it gas then it dips down then goes, if it sits and you drive it its fine, just did it after the long drive. anyone know what that could be

 

I'm guessing it's a Volvo. What is the year and model? How many miles? Any recent maintenance?

 

1991 volvo 240, not sure on the miles the odom stopped. thinking mid 200s, to low 300s, no recent maintenance

 

i was looking at the car today i i opened the air box, havent checked it since ibought hte car about a week ago, and i noticed that it had no air filter, could this dip or stumble be caused by a dirty MAF sensor?

 

Wow. Might be a dirty MAF. Can you pull any diagnostic codes? Is the CEL on? (check engine light)