There is provided a vehicle engine control system that includes engine and transmission control functions and enables evacuation driving to be readily performed. A monitoring control circuit unit and an error processing circuit unit monitors controlling operation of a main control circuit unit; when the occurrence frequency of valve-opening control abnormality becomes larger than threshold value, a first storage circuit stores the occurrence frequency, and driving of an intake valve control motor is stopped to set to fixed opening degree; when transmission-control abnormality is occurs, power supply to automatic transmission is stopped to set to the third speed fixation ratio; when an abnormality occurs, evacuation driving is implemented using fixed opening degree and automatic transmission ratio, variable rotation speed and fixed transmission ratio, or fixed opening degree and fixed transmission ratio. When valve-opening control abnormality or transmission-control abnormality occurs, fuel injection control is prevented from being inappropriately stopped.