Yes, I would also suggest going by Auto Zone and ask them to draw the code.

Five'll get you ten that it's an Oxygen Sensor slow to warm up. If that's the case, they will try to sell you an Oxygen Sensor. The front ones are tough to change. If the code is indeed a slow warm up O2 sensor, get a way to reset the code and reset it whenever it happens and be happy.

Good luck and Merry Christmas,