- 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 important component of the electronic fuel injection system. The Mass Air Flow Sensor is installed between the engine's intake manifold and the air filter and evaluates the amount of air that passes through the air filter and into the engine. Your Nissan's onboard computer uses the information gathered by the Mass Air Flow Sensor and regulates how much fuel is needed to keep the right ratio of air to fuel.
If you have a damaged or worn out Mass Air Flow Sensor, the engine may run lean, meaning there is too much air or not enough fuel in the air-to-fuel ratio. If the engine is running lean, your Nissan might have trouble starting, or you may notice decreased performance or backfires when decelerating.
Since an old Mass Air Flow Sensor can affect engine performance, it can cause the check engine light to illuminate on your Nissan dashboard. Connect an OBD-II scanner to the on-board computer in your Nissan to see if there's an error code for the Mass Air Flow Sensor. No scanner? Get assistance at your nearest Nissan service center.
Replacing a faulty Mass Air Flow Sensor is pretty complex and best left to a professional. If you have your air flow sensor issues professionally inspected, your Nissan technician may be able to fix the sensor's issue by simply cleaning the sensor instead of replacing it. They will use a specific type of Mass Air Flow Sensor cleaner to remove any dirt, debris, or grime that's built up on the sensor.
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. This Mass Air Flow Sensor 226806CA0B fits your Nissan Altima, Nissan Pathfinder, Nissan Sentra, or Nissan X-Trail. See the What This Fits tab for more details.
MASS AIR FLOW
Fits Altima, Kicks, Pathfinder, Rogue, Sentra