I took the car to get looked at and had to have the mass air sensor replaced. Had to get the check engine light reset. Did that and it popped back on after 2 days, only to find out that it has to be reset by the Nissan dealership. Took it to the dealership to find out I had to pay $125.00 for them to reset it, when it's still under warranty. It doesn't make sense when the part has been replaced and it's till giving the same code and its under warranty.