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Here’s a great article on exactly how to clean one from Family Handyman. They can be cleaned, but it’s easy to mess one up, and you don’t want to use a wire brush.
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Here are the most common causes of P0101 in the Nissan Maxima. Since P0101 has to do with the Mass Airflow Sensor, which is a huge part of a computer controlled engine’s combustion process metering. The engine’s computer uses this reading to determine the exact amount of fuel that the engine needs for optimal combustion. It measures the air density and volume in between the air filter and the intake manifold. It’s important to understand what the MAF sensor does. It should be considered a high priority to fix, as the MAF sensor not reading properly can really make an impact on the performance of the vehicle. We will cover exactly what that means and potential fixes for it below. With the Nissan Maxima, P0101 means the the Mass Air Flow (MAF) sensor has a Range/Performance problem.
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