Admin What does diagnostic code P0101 mean?
mass air flow
Code P0101 Meaning The mass air flow (MAF) sensor measures the amount of air entering the engine. Check engine light code P0101 is set when the measurement of air entering the engine by the mass air flow sensor is outside of the manufacturer’s specified range.
What can cause a P0101 code?
The mass airflow sensor (MAF) measures the amount of air entering the engine. 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. In most cases, this code is not very difficult to diagnose.
Can I drive with a P0101 code?
How serious is the P0101 code? The P0101 code will not prevent the car from driving but it is advisable to check it out as soon as possible. Sustained driving can cause internal problems in the engine.
How do you diagnose a bad mass air flow sensor?
Symptoms of a Faulty Mass Air Flow Sensor
- The engine is very hard to start or turn over.
- The engine stalls shortly after starting.
- The engine hesitates or drags while under load or idle.
- Hesitation and jerking during acceleration.
- The engine hiccups.
- Excessively rich or lean idling.
Can you drive with a bad MAF sensor?
Yes! It is possible to drive with the signs of a bad MAF sensor but for a specific duration. However, it will be recommended not to drive with a bad MAF sensor to lead the driver towards engine issues. Usually, people neglect what the MAF sensor tells them that often leads them towards the worst engine conditions.
How do you test an air flow sensor?
In modern cars, the only way to test the mass air flow sensor is with a scan tool. Mechanics measure the amount of air flow (mass air flow sensor readings) at different RPMs. They compare the readings to the specifications or to the readings of a known-good mass airflow sensor.