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    Fuel Injection Air Flow Meters

    It takes air, spark and fuel to make an internal combustion engine run, and the air part of that equation is critical. Located between the engine and the air filter, an air flow meter is a critical component, and without it, your vehicle won’t run right, if at all. If you're looking for a replacement part, we carry several options for most vehicles on the market.

    Air flow meters, also known as mass air flow sensors, have a specialized function: they measure the air flow through the engine in terms of density and volume. The engine's electronic control unit, or ECU, uses this information to determine how much fuel to inject into the cylinders of your vehicle and to advance or retard spark timing.

    Over time, mass air flow meters wear out like most engine parts. Additionally, a problem with the air flow meter may directly correlate with a dirty air filter. If the air filter is at its capacity or has a tear in it, more particles flow through the engine. When particles begin to clog up the meter, they reduce its effectiveness and potentially cause part failure.

    If your air flow meter fails, numerous things can happen. With impaired air flow and bad readings from the meter, the emissions increase significantly, and it's not uncommon to see a noticeable dip in your gas mileage. You also might notice that your check engine light comes on. If this happens and you live in a state that does mandatory emissions inspections, it can earn you a rejection. Additionally, in some vehicles, you may notice that your engine stalls, runs rough or fails to idle, taking you off the road until it's fixed.

    While it's possible to clean out the mass air flow meter, it's often recommended to replace it as it is a very delicate part. We carry a cleaning agent specifically for these sensors, offering a cost-effective solution. If you find broken wires on the meter for your vehicle, a replacement is your only option, and to make it simple, we carry those, too.

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    Disclaimer: We strive to keep all information accurate and up-to-date; however, product availability, pricing, promotions and store hours are subject to change without notice. Please contact Customer Care if you have any questions or corrections.