Ina control air speed inayokwenda kwenye engine, then kuna feedbacks zinazokua picked na air mass flow sensor kwa ajili ya kuipa taarifa computer ya gari (ECU) iweze kutoa kiasi sahihi cha mafuta kitakacho mix na hewa kwa ajili ya proper combustion( it is for controlling air speed entering the engine combustion chamber for effective and efficient air & fuel mixture. Once the resonator is distracted for whatever reason, it is going to affect readings that are picked up by air mass flow sensor (MAF) and affect the car fuel consumption since the car computer (ECU) will be forcing more fuel to enter the combustion chamber so that to mix with an increased air flow.