What does Mercedes-Benz MAP mean?

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Mercedes-Benz MAP refers to the Manifold Absolute Pressure sensor, electronic control unit, and pressure sensor. Manifold Absolute Pressure sensor: It is connected to the intake manifold via a vacuum tube. As the engine operates under different speeds and loads, it senses the vacuum changes within the intake manifold. The sensor then converts the internal resistance changes into voltage signals, which are sent to the Engine Control Unit (ECU). The ECU uses the magnitude of this signal voltage to control the basic fuel injection quantity. Electronic Control Unit: Composed of a microcontroller (MCU), memory (ROM, RAM), input/output interfaces (I/O), analog-to-digital converters (A/D), and large-scale integrated circuits for shaping and driving. When a system fault occurs, it can automatically record the fault code in RAM and implement protective measures by reading substitute programs from the inherent programs to maintain engine operation. Pressure Sensor: A device or apparatus capable of sensing pressure signals and converting them into usable electrical output signals according to specific patterns.