The MASS Air Flow sensor is a computer input that measures the amount of. Barometric pressure may also be calculated either in the sensor or by. The computer for correct air/fuel mixture. The computer uses this information for air/fuel. Mixture control, ignition timing and to aid the transmission in pressure control for accurate.Failure Symptoms: Malfunction Indicator Light (MIL) illumination, failed emission test. Engine hesitation on acceleration, poor fuel economy poor engine performance engine nostart condition, engine surging. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts & Accessories\Air & Fuel Delivery\Air Intake & Fuel Sensors". The seller is "globalsourcewd" and is located in this country: US. This item can be shipped worldwide.