2004 Dodge Neon Engine Sputter and loss of power

Hi i have a 2004 Dodge Neon and its been working great so far. Recently my car occasionally suffers from a lose of power when i drive and the check engine light comes on when i try to accelerate and i get to 2k rpms the car sputters and jerks. When i pull over and restart the car it drives fine like nothing ever happened. After driving it a few time the check engine light goes off. It started doing it every 3 to 5 days then i got a tune up done and it did not do it for a month. It recently happened again. What could be the problem?