• Monitors air levels within your engine
• Plays a vital role in your electronic fuel injection system
• Replacement can be complex

The Mass Air Flow Sensor on your vehicle is an essential part of the electronic fuel injection system. The Mass Air Flow Sensor is positioned between the air filter and intake manifold on the engine and analyzes how much air enters the engine through the engine's air filter. Your INFINITI's onboard computer takes in the information that the Mass Air Flow Sensor gathers and determines the amount of fuel that's necessary to keep the right ratio of air to fuel.

If the Mass Air Flow Sensor is worn out or damaged, it can cause the engine to run rich or lean, meaning there is too much air or not enough fuel in the air-to-fuel ratio. If the engine is running lean, your INFINITI might have trouble starting, or you may notice decreased performance or backfires when decelerating.

Since a worn out Mass Air Flow Sensor can diminish engine performance, it can trigger the check engine light on your INFINITI. Connect an OBD-II scanner to the on-board computer in your INFINITI to see if a Mass Air Flow Sensor error code is returned. Don't own a scanner? Visit your nearest INFINITI service center.

Replacing a faulty Mass Air Flow Sensor is pretty complex and best left to a professional. If you get a professional inspection for air flow sensor issues, your INFINITI technician may be able to fix the sensor's issue by cleaning the sensor as opposed to replacing it. They will use a specific type of Mass Air Flow Sensor cleaner to get rid of grim, debris, or dirt that has collected on the sensor.

If your Mass Air Flow Sensor is old or worn out and needs to be replaced, ensure you get the right part with a genuine Mass Air Flow Sensor from INFINITI Parts. This Mass Air Flow Sensor 226803VA0A fits your INFINITI JX35 2015-2016 or INFINITI QX60 2015-2016. Check out the What This Fits tab for additional details.

Fits JX35, QX60