The auto part experts of one of the leading Suzuki Car Parts begin with the general information of car’s fuel system and later on will talk about the Manifold Absolute Pressure Sensor (Map Sensor) in cars. The modern vehicles that grace the roads today boast a computer and a string of sensors that manages and controls their fuel consumption as well as other vital operations. The chances are less that you have to work on any of these sensors yourself but there is a sensor that needs to work properly and optimally at all times for a smooth functioning of car’s engine, and that is Manifold Absolute Pressure Sensor (Map Sensor). Know one thing that if your engine is working funny, there is a smooth 90% chance that your Map sensor is rearing its end or have already failed.
So here is a quick look at what exactly MAP sensor is and what does it do?
What is a Manifold Absolute Pressure Sensor (Map Sensor)?
The manifold absolute pressure sensor is engineered to read the amount of pressure or vacuum, which in automobile terminology is known as engine load, situated inside the engine manifold. This is the place where the outside air is trapped and segregated in equal quantities and distributed to each cylinder. Now, this pressure reading monitored by the manifold absolute pressure sensor is then conveyed to the engine control unit that determines the quantity of fuel that needs to be sprayed into the combustion chamber and also to gauge the engine timing.
What is the primary function of Manifold Absolute Pressure Sensor (Map Sensor)?
In all modern age vehicles that boast fuel injection engines, you’ll definitely find a Map Sensor. The fuel injection engines use high-intensity pressure to pump fuel, later on vaporizing it. Map sensor assists the engine in figuring out how much amount of fuel needs to be fed to each cylinder to have the best combustion possible. This main task is carried out by evaluating how much air is entering into the engine, the number of rotations the engine is performing per minute and the temperature of the air. After gauging all this, a central electronic control unit (ECU) then calculates the air density within the fuel mixture. Based on these units the engine control module then will regulate the flow of fuel and flow of air so that the best possible combustion can be performed.
What are the different types of Map Sensors?
With Analog Output: It is a widely used Map sensor. The voltage that these sensors give is directly proportional to the engine load.
With a Digital Output: The Map sensors with Digital Output give a certain type of frequency that rises with the increase in frequency.
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