
Visit the What This Fits tab for more details.I checked my oil and transmission fluid about a week and a half after buying the car and right when I shut the hood the check engine light popped on and stayed on obviously very temperamental. When it's time to replace your old Mass Air Flow Sensor, ensure your new Mass Air Flow Sensor part is the right fit by shopping genuine Nissan Parts. 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 you receive a professional inspection for air flow sensor issues, your technician might be able to solve them by cleaning the sensor as opposed to replacing it. Replacing an old or worn out Mass Air Flow Sensor is difficult and should be left to a professional. Don't have a scanner? Head to your closest Nissan service center for assistance. Connect an OBD-II scanner to the on-board computer in your Nissan to see if the scanner returns a Mass Air Flow Sensor error code. Since a worn out Mass Air Flow Sensor can diminish engine performance, it can cause the check engine light to illuminate on your Nissan dashboard.

If the engine in your Nissan starts running lean, you might notice symptoms such as backfires when decelerating, decreased performance, or your Nissan won't start.

If the Mass Air Flow Sensor is worn out or damaged, the engine may run lean, which means either too little fuel or too much air is in the air-to-fuel ratio. Your Nissan's computer takes the information gathered from the Mass Air Flow Sensor and determines the amount of fuel that's necessary to maintain the proper air to fuel ratio. The Mass Air Flow Sensor is positioned between the engine's air filter and intake manifold and measures the amount of air that enters the engine through the engine air filter. The Mass Air Flow Sensor on your Nissan performs an essential function in the electronic fuel injection system.
