stopped in traffic this morning on the way to work....cars start to move took off in 2nd got to about 35 mph and cel comes on...car bucks and shudders and drives poorly....limp-mode whatever.....get to work and im throwin code 3....however when i turn the car off and back on it goes away....i havent driven it since this morning so i dont know if it will do it again...what could be the cause of this? i figure the map sensor is no good but why would the light turn off after i restart the car?

 

ne body