What causes MAF sensor to fail in Versa? Dirt accumulation This can cause the engine warning light to illuminate in the instrument cluster and the fault can be read out by a diagnostic device. The engine runs too “lean” or too “rich”. The optimal amount of fuel can no longer be calculated which results in either too little or too much fuel injected into the combustion chambers. If the MAF sensor is defective or dirty, it does not send correct measured values to the control unit of Versa. What happens when MAF sensor malfunctions in Nissan Versa? It is not only important for power delivery in your Versa, but also for the lowest possible pollutant emissions. Please note that the tool that you receive after placing an online order may be in a used but operable condition due to the nature of the Loan-A-Tool® program.The mass air flow sensor is part of the engine’s intake system and is located between the air filter and the throttle body. Do not wear ties or loose clothing when working on your vehicle.įREE Loan-A-Tool® program requires returnable deposit. Should electrolyte get on your body or clothing, neutralize it immediately with a solution of baking soda and water. Always wear gloves and safety glasses and other personal protection equipment, and work in a well-ventilated area. Sulfuric acid is caustic and can burn clothing and skin or cause blindness. Use caution when working with automotive batteries. Always disconnect the negative battery cable before servicing an electrical application on the vehicle to protect its electrical circuits in the event that a wire is accidentally pierced or grounded. Always chock your wheels prior to lifting a vehicle. Refer to the service manual for specific diagnostic, repair and tool information for your particular vehicle. Information is accurate and true to the best of AutoZone’s knowledge, however, there may be omissions, errors or mistakes.īe sure to consult your owner’s manual, a repair guide, an AutoZoner at a store near you, or a licensed, professional mechanic for vehicle-specific repair information. A few basic supplies will be needed (some hand tools and special cleaner), all of which you can find at your local AutoZone.Īdvice, how-to guides, and car care information featured on and AutoZone Advice & How-To’s are presented as helpful resources for general maintenance and automotive repairs from a general perspective only and should be used at your own risk. You just need to remove the component, clean it, and reattach it to your engine air intake system. If the MAF sensor is at fault, cleaning it can help, and many times, even solve the problem. You also may notice a decrease in fuel efficiency.Ĭleaning the MAF as part of regular routine maintenance can help reduce and/or prevent these problems. If the MAF sensor becomes dirty inside and/or begins to fail, you’ll notice issues like longer cranking time when starting the engine, hesitation or jerking when you accelerate, rough idling or stalling and sometimes black soot/smoke exiting the tailpipe. This information is sent to the car’s computer which controls the fuel injection and ignition systems. The MAF sensor monitors the temperature and amount of air entering your engine. The Mass Air Flow (MAF) sensor plays a critical role within the fuel management system to ensure the ratio is correct. Your engine needs the proper air/fuel ratio to run correctly.
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