The ECU need to know intake air volume to calculate engine load. This is necessary to determine how much fuel to be injected,when to i gnat the cylinder, and when to shift the transmission . The air flow sensor is located directly in the air steam between the air cleaner and throttle body where it can measuring air.
What voltage did you get when you first powered up sensor without passing air over the sensor?
Whiteout passing air i got 1.03 volts.
How did the Voltage change when air was passed over the sensor?
When the air is passing over sensor the voltage gets higher, the result of reading when i powered up was 1.02 volts, then i lowed air through the sensor getting higher to 3 volts.
Are your results within the manufacturer:s specification, why or why not?Yes it is within the manufacture specification, because when i powered it it was 1.02 V and when lowed air flow the voltage got higher from 1.02V to 4.0 V. Please refer to the table below:
The internal operation of this sensor.
The mass air flow sensor is used to find out the amass of air entering a fuel injected internal combustion engine. The air mass is necessary for the engine control unit to balance and deliver the correct fuel mass to the engine. .the mass air flow sensor convert the amount of air drawn into the engine into a voltage signal.
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