ACDelco GM Original Equipment 12643955 Manifold Absolute Pressure (MAP) Sensor

An ACDelco GM Original Equipment Manifold Absolute Pressure (MAP) Sensor measures the intake manifold pressure, and is a GM-recommended replacement for your vehicle’s original component. The MAP sensor is a part of the fuel and engine management system. Its signal is used by the engine control module along with the throttle position sensor to calculate the amount of air entering the engine so that the correct amount of fuel is injected for optimum combustion. This original equipment manifold absolute pressure sensor has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.