Well, the first thing I would try is to reset your engine computer and see if the trouble code goes away. You can do this by pulling the fuse marked BACK UP in the under hood fuse box for fifteen seconds. To facilitate the best reset possible, turn off all accessories before turning off the car and then let it cool for several hours. Then after you pull the fuse turn the car back on and let it idle with no accessories on until the temp gauge stops rising.

If the code persists, you most likely have a bad MAP (Manifold Absolute Pressure) sensor. Basically this sensor's job is to tell the engine computer how much air is entering the motor by reading the pressure in the intake manifold. It can fail either electrically or it can pop a seal and no longer hold vacuum. There's a small chance you could also have a wiring problem or vacuum leak somewhere but most likely the sensor itself has gone bad.