NTK highlights the functionalities of the 4 different types of MAP Sensors for vehicle performance

The brand also points out the main signs that the component may be damaged

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The NKT, brand of Niterra, Japanese multinational that also owns the NGK brand and specializes in components for ignition systems, highlights the importance of the four types of MAP sensors (Manifold Absolute Pressure) and its multiple functionalities for the correct functioning of the injection system. MAP sensors play a key role in determining the mass of air entering the engine, directly impacting the vehicle's efficiency and performance.

1- MAP with analog signal: Generates a voltage curve proportional to the pressure in the manifold.

2- MAP with digital signal: produces a square wave representing the frequency, indicating the pressure on the manifold.

3- MAP with integrated temperature sensor: combines MAP sensor and air temperature sensor in one piece. Thus, as well as informing the absolute pressure, Tells you the temperature of the air entering the engine.

4- MAP Boost Pressure: Measures pressures above atmospheric, Used in turbocharged engines, Engines using turbines, having two phases of operation, One Phase Aspirated and Turbocharged Phase, In the turbo phase, the pressures are above the atmospheric pressure.

Damage and Problems to MAP Sensors

MAP sensors can be damaged in a variety of scenarios, including the aging of the internal resistive piezo membrane, Oil Buildup and Carbon Residue, as well as obstruction, leaks in the connecting hoses and seals present in the intake manifold. These problems can lead to increased fuel consumption, High pollutant emissions and engine failures.

"In cases where there is a need to change the part, NTK provides high-quality MAP sensors for the aftermarket. Replacing the sensors is simple, However, you should always check for false air inlets that may interfere with your correct reading", afirma Hiromori Mori, Technical Assistance Consultant at Niterra do Brasil. "Defects in the sensors can cause engine malfunctions and, in the case of turbocharged engines, up to severe damage due to excessive pressures. That is why, Drivers should perform regular maintenance and use the manufacturer's recommended, to prevent application errors or damage to the system."