I have a 2011 Nissan Altima around 44,000 miles, couple days ago service engine light comes on. I take it to Autozone and get an error code of P0101. I can't tell that it's driving any different than before. Doesn't feel like it's lost any power, no stalling, drives like it did before the light came on. Is there some easy fixes I can try before taking it to a mechanic?

 

http://engine-codes.com/p0101_nissan.html

Check for vacuum leaks, clean out your MAF and see if that fixes your problem