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1. How to judge the quality of a car air flow meter
1. Detection of wing type air flow meters There are two types of wing type air flow meters: 5-wire and 7-wire. The 5-wire wing type air flow meter does not have an oil pump switch inside, while the 7-wire wing type air flow meter has an oil pump switch inside. Names and functions of each terminal.
2、 The detection of hot film air flow meter: Hot film air flow meter has low manufacturing cost, long service life, and is widely used. Santana Era Superman, SGM Buick and other cars all use this type of air flow meter. Symptoms of a broken car air flow meter include shaking at idle, high fuel consumption, weak performance at high speeds, and black smoke from the exhaust pipe. Inspection and analysis: After testing with a fault diagnosis instrument, it was found that the data block of the engine air flow meter exceeded the standard severely. The reason for the damage of the air flow meter was often due to the use of inferior air filters or the failure to regularly and carefully grind and replace the air filters, which caused dust to stay on the hot wire of the air flow meter bucket for too long, resulting in inaccurate or ineffective changes in its resistance value. In addition, dust can cause the throttle body to be too dirty.
2. What does car maf mean?
In cars, MAF is the air flow meter for the engine air intake system. The following is an introduction to the sensor: Air flow sensor: The control of fuel injection pulse width is divided into three parts: among them, the air flow sensor (MAF), throttle position sensor (TPS), and engine speed sensor control the basic fuel injection pulse width; The air temperature sensor (MAT), coolant t
3. What are the symptoms of a broken car air flow meter?
A broken car air flow meter can mainly affect the engines power performance, and may cause unstable idle speed.
; Increased fuel consumption; Inability to accelerate; The exhaust emissions are seriously polluting. With the slow development of our countrys industry, the types of air flow meters have also undergone many changes. According to the division of the times, air flow meters are divided into four categories: L-type, D-type, hot wire type, and hot film type. The structure of the first generation L-shaped air flow mete
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