Usually, one or more of these symptoms will occur, but it’s not uncommon to have no symptoms other than the check engine light. Since P0102 has to do with the Mass Airflow Sensor, which is a huge part of the Sentra’s engine combustion process metering, it is going to cause noticeable symptoms. Related: Nissan Sentra P0101 Diagnosis: MAF Sensor When it is not getting the proper reading, it can really cause issues with your Sentra. The engine’s computer uses this reading to determine the exact amount of fuel that it needs for optimal combustion. It measures the air density and volume 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. It means the the Mass Air Flow (MAF) circuit is low, and that it is not performing within its specified operating range. P0102 is a very common trouble code with the Nissan Sentra.
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