What is the function of Jetta flowmeter | air flowmeter

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Where was the Jetta air flow meter installed in 2016? It is located between the air filter and the throttle valve. The air flow sensor of the 16-year-old Jetta is usually installed on the intake pipe, usually between the air filter and the throttle valve. Jetta was once a Volkswagen brands sock model, with its first product launched in Europe in 1979.

2. Pressure transmitter price

Where is the 3.17 Jetta air flow meter?

Engine intake pipe. According to the information provided by Autohome, the air flow meter for the car engine is located on the intake pipe of the engine car and installed at the rear end of the air filter, which means there is an air flow meter inside the throttle cover. Air flow meter, also known as air flow sensor, is a sensor that measures the amount of air flow that is drawn into the engine due to material deficiency, and is also one of the important sensors for electronic fuel injection engines.

4. What is the reason for the severe shaking of Jetta at idle?

First, check the air filter and no blockage was found.

. After replacing the fuel filter and cleaning 4 fuel injectors, the fault still persists during the test drive. Check the fuel pressure, which is normal during idle and acceleration, and normal during routine inspections. According to maintenance experience, the occurrence of "quietly changing" faults is often caused by the excessive concentration of the disturbance mixture. Check the intake system for any air leaks. Remove the plug of the air flow meter, test drive, and find that the fault has greatly improved. Check the resistance between the terminals of the air flow meter, all of which are normal. Observing its resistance, the working condition Jetta flowmeter

is good, but dust accumulation is found on the resistance. Use carburetor cleaner to remove dust, reinstall and test drive, and troubleshoot. Fault summary: Air flow meters play a very important role in electronic fuel injection engines. The Jetta King sedan uses a hot film air flow meter, which applies a constant voltage to both ends of a resistor to generate heat, and its temperature is controlled by a circuit to remain constant. When the ECU determines the amount of intake based on the current flowing through the hot wire, it determines the amount of fuel injection to meet the needs of different working conditions. If dust accumulates on the resistor, it will slow down the temperature change of the fighter and reduce the required current. Based on this, the fuel injection amount determined by the ECU will decrease, while the actual intake amount will be larger. This will cause the air-fuel ratio to be too low, resulting in the above-mentioned fault.

5. The function of the air flow meter is to measure the air flow rate, which is installed between the air filter and the intake hose.

. It collects engine intake information. The Jetta sedan adopts a "hot film type" air flow meter, as shown in Figure 2-49. There is no flow resistance inside the air flow meter. The testing method of the hot film type air flow meter is the same as that of the hot wire type. The flow sensor has no dirt deposition. The hot wire type air flow meter is designed based on the Wayne balance bridge circuit. The hot wire is part of the hysteresis analysis circuit. The heated platinum metal hot wire is cooled by the flowing air, causing the resistance to decrease. The electrical analysis is unbalanced. In order to maintain the balance