How to fix mass air flow sensor problems2/17/2023 ![]() ![]() Dirty, obstructed or faulty mass air flow sensor (MAF) The most common causes of the code P0101 are: For the same reason, the automatic transmission shifting pattern may also change. Common symptoms include:īecause the mass air flow sensor readings are used to calculate the engine load, the traction control system may stop working and the traction control warning light might also come on on the dash. If the sensor doesn't measure the air flow correctly, the fuel injection system won't work properly. The engine computer uses the mass air flow sensor signal to determine how much fuel to inject. ![]() In most cases, this code is not very difficult to diagnose. The OBD-II code P0101 is set when the signal from the mass air flow sensor is out of expected range, or in other words, the MAF sensor doesn't work properly. The mass airflow sensor (MAF) measures the amount of air entering the engine. Signs of automatic transmission problems.How to check the engine when buying a used car.How to get the best deal on a used car?.Buying a used car: 5 costly mistakes to avoid. ![]()
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