Standard Ignition MAS0255 mass air flow sensor for the 2003-2010 Hyundai Elantra 4-cylinder 2.0L and other vehicles measures the air entering the engine and reports it to the ECU. That reading helps the ECU balance the air/fuel ratio for clean burns.
A failing mass air flow sensor can show up as a rough idle, hesitation or a check engine light, but those signs can have other causes. Before you replace it, look over the air intake duct and the sensor's connector with the engine off for cracks, loose clamps or damaged terminals. If the sensor is the cause, this one replaces it. Each engine takes one sensor.
The 2003-2010 Hyundai Elantra 4-cylinder 2.0L, the 2005-2009 Hyundai Tucson and the 2006-2008 Hyundai Sonata 4-cylinder 2.4L are among the Hyundai and Kia models this direct-fit OE replacement fits, with many more besides. That includes a mass air flow sensor for the 2005 Hyundai Elantra 4-cylinder 2.0L.
Fit and size
Build and materials
Is this a Hyundai Sonata mass air flow sensor for the 2006-2008 4-cylinder 2.4L?
Yes. Standard Ignition MAS0255 fits the 2006-2008 Hyundai Sonata 4-cylinder 2.4L. If your car is not named on this page, look it up in the "Vehicles it fits" section.
Will this Hyundai Tucson mass air flow sensor work on the 2005-2009 Tucson?
Yes. This mass air flow sensor is listed for the 2005-2009 Hyundai Tucson.
What kind of connector does this mass air flow sensor have?
Standard Ignition MAS0255 has one oval, female plug-type connector with five male blade terminals. It bolts on through two bolt holes.
What can a bad mass air flow sensor do to idle and fuel economy?
A faulty sensor can send the ECU inaccurate airflow readings, which can show as a rough idle, hesitation or poor fuel economy. Confirming it takes a live-data test, which a shop can run.
Does the MAS0255 mass air flow sensor come with its housing?
Yes. This Standard Ignition sensor is a complete assembly with the housing included.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
