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Before checking the MAF sensor with a multimeter, you need to measure the supply voltage of this sensor. If the MAF sensor is not supplied with the correct voltage, then the MAF sensor output signal will be lower or higher than normal. The video shows, using the example of a VAZ 2115 car, how to check the supply voltage of the mass air flow sensor and how to check the MAF sensor itself and not make a mistake. #maf #how to check the MAF sensor