Where is the sensor that can detect intake air volume installed?

[SanRosalie]

Automotive intake air pressure and temperature sensors are generally installed on the intake manifold of the vehicle, positioned at the top of the intake manifold to prevent water accumulation. Typically, damage to high-temperature melt pressure sensors is caused by improper installation positions. Relevant information about the intake air pressure sensor is as follows: 1. Introduction: The intake air pressure sensor (Manifold-Absolute-Pressure-Sensor), abbreviated as MAP. It connects to the intake manifold via a vacuum tube, sensing the vacuum changes within the intake manifold as the engine operates at different speeds and loads. The changes in internal resistance of the sensor are then converted into voltage signals for the ECU to adjust fuel injection volume and ignition timing angle. 2. Working principle: The intake air pressure sensor detects the absolute pressure in the intake manifold behind the throttle valve. Based on the engine speed and load, it detects changes in the absolute pressure within the manifold and converts these into signal voltages sent to the engine control unit (ECU). The ECU uses the magnitude of this signal voltage to control the basic fuel injection volume.