Do you have a check engine light on?
I would suspect an air intake leak (check the hose after your air filter box to the intake - is it cracked and leaking perhaps? Check closely...fairly common on this car), a vacuum leak, something like that. You could also have a fuel pressure concern - after checking for obvious leaks, have a fuel pressure check done.
The MAF sensor is the sensor on the air tube after the air filter box.
You really should not replace this part frivolously - make sure you check for the barometric pressure reading and for fuel trim codes. Otherwise, it's probably ok.