A system and method for controlling an engine in a vehicle to facilitate
heat transfer to a passenger compartment is provided. A number of
conditions are examined, and if it is found that one or more of these
conditions matches a corresponding predetermined condition, the spark
timing of the engine is retarded. In addition, a charge motion control
valve is opened, thereby increasing the amount, and reducing the
turbulence, of the air entering the engine. This facilitates hotter
combustion within the engine, and therefore faster heat transfer to the
vehicle passenger compartment.