The difference between an inlet pressure sensor and an intake air temperature sensor in an automobil

The former is used to measure the inlet pressure. To put it bluntly, the amount of fuel injected by the foundation is determined by the intake pressure. The intake air temperature is mainly used to correct the fuel.

It doesn't really work. So the difference between the two is still very big.

These two are not the same, the intake air temperature is installed on the intake pipe, and the intake pressure is installed on the intake duct. One is the reaction temperature signal, and the other is the reaction inlet pressure signal.

Hello, the inlet pressure sensor is generally three wires, there are two kinds of vacuum diaphragm and scratch resistor, the inlet air temperature is generally two wires and the coolant temperature sensor is the same principle, I am happy to answer for you.

Hello! For the intake pressure sensor, it is mainly used to detect the pressure of the intake pipe of the engine, and the intake temperature is mainly used to detect the temperature of the intake pipe of the engine, and the functions of the two are different.

Hello, there is basically no difference, at present, the car has combined these two sensors into one, designed as a sensor for the intake pressure temperature sensor, the normal three wires are more, and there are also some four-wire designs.

Hello, the role of the two is different, one is a sensor that senses pressure, and the other is a sensor that senses temperature.

Inlet Air Temperature Sensor:

Inlet Pressure Sensor:

Hello, no, the intake air is the air intake, and the atmosphere is the outside air pressure.

Let's see what others have to say.

The intake manifold is connected through the vacuum tube, and the vacuum change in the intake manifold is sensed with the different speed loads of the engine, and then converted into a voltage signal from the change of internal resistance of the sensor, which is used by the ECU to correct the fuel injection amount and ignition timing angle.

The most common inlet pressure sensors are three-wire and four-wire, and the pin definitions of three-wire sensors are power, ground, and inlet pressure signals, respectively; The four-wire sensor, on the other hand, has one more inlet air temperature signal than the three-wire.

The function of the intake pressure sensor: the intake pressure sensor provides engine load information and intake temperature information, which can convert the pressure of the engine intake pipe into a corresponding electrical signal, and the engine electronic controller calculates the basic fuel injection time, fuel injection volume and ignition advance angle according to this signal.

The intake pressure sensor is used to detect the absolute pressure of the intake manifold behind the throttle, which detects the vacuum change in the intake manifold according to the engine speed and load, and then converts it into a signal voltage and sends it to the engine control unit (ECU) through the change of the internal resistance of the sensor, and the ECU controls and corrects the amount of fuel injection and the ignition timing angle according to the magnitude of the signal voltage.

What does the car intake temperature pressure sensor do, and what does it do if it breaks down on the engine.

The intake pressure sensor provides engine load information and intake temperature information, which can convert the pressure of the engine intake pipe into a corresponding electrical signal, and the engine electronic controller calculates the basic injection time, injection volume and ignition advance angle based on this signal.

The function of the intake pressure sensor is to detect the absolute pressure of the intake manifold behind the throttle, detect the change of absolute pressure in the manifold according to the engine speed and load, and then convert it into a signal voltage and send it to the ECU, which controls the basic amount of fuel injection according to the size of the signal voltage.

The intake pressure sensor is referred to as MAP, which is connected to the intake manifold with a vacuum tube, and induces the vacuum change in the intake manifold with different engine speed loads, and then converts it into a voltage signal from the change of internal resistance of the sensor, which is used by the ECU to correct the amount of fuel injection and the ignition timing angle.

The intake pressure sensor used in the EFI engine to detect the amount of air intake is called the D-type injection system. The inlet pressure sensor detects the air intake volume is not directly detected like the inlet flow sensor, but uses indirect detection, and it is also affected by many factors, so there are many places different from the inlet air flow of the flow sensor in the detection and maintenance, and the resulting fault also has its particularity. (Photo by photo:.)

Chen Min of Pacific Automobile Network 2).