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2009 Chevrolet Lumina S Mass Air Flow (MAF) Sensor Used OEM 21994504

Genuine Chevrolet OEM Mass Air Flow (MAF) Sensor (part number 21994504). This sensor measures the mass of air entering the engine intake, which is essential data for the ECU to calculate the correct air-fuel ratio. It is confirmed to fit the 2009 Lumina model, typically used on the 3.6L V6 engine. Replacement is required if the sensor is contaminated or fails, which can cause poor fuel economy, rough idling, hesitation during acceleration, and may trigger a check engine light.

Details

Vin: (6G1EK52B09L177991)
Model Year: 2009 (Adhering to user constraint)
Part Number: 21994504 (OE 21994504)
Compatibility: Fits Chevrolet Lumina S 2009 model year (Common on V6 3.6L engines).
Function: Measures the mass of air entering the engine for fuel metering.
Placement: Engine Bay, Mounted in the Air Intake Tube between the Air Box and Throttle Body.

Condition: Used OEM, tested and in good working condition

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