Fortunately AutoNation Nissan Memphis is here to help you figure out what might be wrong, and what your next steps should be. A wide array of issues can cause a check engine light to come on, some more serious than others. Has the check engine light turned on in your Nissan Altima, Versa, Rogue, Pathfinder, or Frontier? It can be alarming seeing an engine warning appear on your dashboard, especially if you've never seen it before. See the What This Fits tab for more details.Schedule Service Appointment Common Causes For Nissan Check Engine Light This Mass Air Flow Sensor 226806CA0B fits your Nissan Altima, Nissan Pathfinder, Nissan Sentra, or Nissan X-Trail. 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 remove any dirt, debris, or grime that's built up on the sensor.
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. Replacing a faulty Mass Air Flow Sensor is pretty complex and best left to a professional. No scanner? Get assistance at your nearest Nissan service center. 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. Since an old Mass Air Flow Sensor can affect engine performance, it can cause the check engine light to illuminate on your Nissan dashboard. If the engine is running lean, your Nissan might have trouble starting, or you may notice decreased performance or backfires when decelerating. 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.
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. 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. The Mass Air Flow Sensor on your vehicle is an important component of the electronic fuel injection system.
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