What a Manifold Pressure Sensor Does

The Manifold Pressure Sensor is also called a MAP sensor. Every car has a series of sensors that are needed for the car to function properly. The MAP sensor is counted amongst the most crucial sensors in a car. It is responsible for ensuring that the computerized functions related to the car’s ignition are executed with precision.

Understanding Manifold Pressure Sensor Functioning

The MAP sensor controls the input/output to the car’s PCM (Powertrain Control Module). The MAP sensor recognizes any form of pressure changes within the engine’s ignition system and creates a corresponding ignition signal. Every time, vacuum/pressure input rises, the voltage output readings by the MAP sensor dip. This voltage reading is transmitted to the PCM which in turn ensures that the timing/intensity of the ignition system is controlled.

Understanding Manifold Pressure Sensor Problems

Indications of a malfunctioning Manifold Pressure Sensor include smoky exhaust from the car along with extreme engine vibrations. Ignoring problems with the sensor can cause the car to completely shutdown. If you are having repeated problems in starting your car, it is advisable to check the MAP configuration. You should check all the components of the MAP sensor, including its vacuum hose and the electrical connections. Failure in the components are the more common triggers causing a sensor to function irregularly. Total breakdown of a sensor is a rare occurrence. However, if the MAP components aren't repaired in time, the voltage fluctuations can cause irreparable damage to the actual sensor.