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In the 2008 Dodge Avenger, the mass air flow sensor is situated on the engine intake near the throttle body. This sensor, made of plastic with a wire harness, is responsible for measuring the air intake into the engine. It plays a crucial role in communicating this data to the ECU, enabling the injectors to deliver the appropriate amount of fuel for optimal combustion in the cylinders. If the mass air flow sensor malfunctions, the engine may run poorly and run too rich. A warning sign is the illumination of the check engine light when the ECU detects an issue with the sensor.
It seems like there may be an issue with your mass air flow sensor.
The mass air flow sensor for the 2008 Dodge Avenger can be found on the throttle body.