『positive displacement flowmeter 』Related information(flow rotameter|digital flow meter|balo meter|hydraulic flow meter|volumetric meter|positive displacement meter|pitot tube flow meter|displacement meter|cfm meter|variable area flow meter|inline flow meter|differential pressure flow meter|calibrated flow meter|velocity meter|paddle wheel flow meter|oval gear flow meter|anemometer hvac|multiphase flow meter|doppler flow meter|thorpe tube flowmeter|heat flow meter)
Where is the 1.6L displacement air flow meter for the 2010 Dongfeng Peugeot automatic 307?
1. Introduction to Air Flow Meter The function of an air flow meter is to measure the amount of fresh air entering the engine intake manifold and the intake temperature. Based on this information, the ECU corrects the fuel injection amount, limits smoke, and controls the EGR opening.
2. Installation Position The sensor is installed on the engine intake pipe, at the rear end of the air filter. 3. Working Principle 3.1. The principle of an air flow meter The air flow sensor integrates some electronic components on a ceramic substrate. When the engine is working normally, it first heats the diaphragm, and when fresh air flows through the sensor, it takes away some of the heat. At this time, the ECU will control the Wheatstone bridge on the diaphragm to supplement the heat, which will cause changes in the electrical signal. When the signal is transmitted to the ECU, The ECU will calculate the intake air volume based on this change. 3.2. The principle of the air temperature sensor. The intake air temperature sensor is a resistor with a negative temperature coefficient. When the intake air temperature changes, the resistance value of the resistor will change, which will cause a change in the signal voltage at the ECU end. The ECU calculates the intake air temperature based on this change. 3.3. Determination of airflow direction: There are two temperature resistors at each end of the hot film of the air flow meter. When the airflow passes through the hot film, it will take away some heat, so the temperature at the front end of the hot film is lower than that at the rear end. The ECU determines the direction of the
2. Detection of Air Flow Meter: Fault Codes Related to Air Flow Meter
2. How to View Air Flow Data Flow
To view air flow data flow, first understand the normal data flow range of the air flow voltmeter and pay attention to the type of air flow sensor.
.1. Understand the normal data flow range of the air flow meter. In idle state, the air flow rate of a typical vehicle is about 2.5 to 5 grams per second, while that of a small displacement vehicle may be 2 to 4 grams per second, and that of a large displacement vehicle may be slightly higher.
. If it is less than 2 grams per second, it may be due to air leakage in the intake pipe; If it exceeds 4 grams per second, it may be due to air filter blockage or air conditioning on. During rapid acceleration, this value can soar to 2000 to 7500 grams per second, but there are significant differences among different vehicle models. At the same time, some models such as the BMW N52 engine have a higher normal value at idle, reaching 3.55 grams per second. Secondly, pay attention to the types of air flow sensors. There are two c
Hot Blog
Related AD
