How Does Your Car's MAP Sensor Work? As mentioned, the MAP sensor is usually located on the engine air intake manifold near the throttle body.

The throttle body is a key component of a car's fuel/air delivery system, but carbon deposits and other debris can clog up its passages and moving parts.

Your vehicle's MAP sensor plays a crucial role in keeping it performing at its best. Here's how it works and the warning signs that it might be failing.