MAP Sensor

In modern vehicles, a computer and a series of sensors control the engine�s fuel consumption and other operations. While you may never have to work on any of these sensors yourself, one in particular is essential to a smoothly running engine � the MAP (manifold absolute pressure) sensor. What is a MAP sensor, and what does it do? When your engine is running funny, it could indicate a failure of this sensor, so here�s a look at what exactly it is that the MAP sensor does.