If you notice the engine idling is lean or it is getting hard to turn it over, you can consider changing it.Īnother reason is the engine starts stalling once it starts or it begins to jerk or hesitate. There are so many reasons why you might be required to change your MAF. Once you disconnect the battery for ten minutes and replace it back, the computer will begin to learn all the parameters of the newly replaced MAF sensor.

The reason you need to do this is for the car computer to reset to its factory setting and forget previously learned parameters. What to do after replacing mass air flow sensorĪfter you finish replacing your mass airflow sensor, you will have to let your car idle for about 30 minutes to an hour or you disconnect your car battery for some minutes (I recommend 10 to 15) and then reconnect it back again. If you change the air filter regularly, it will help to ensure your mass airflow sensor works perfectly and has a long life span. The MAF can also get dirty as time goes on due to an old or clogged air filter.Ī dirty filter will serve as a passage for dirt to enter the airflow sensor. The MAF can get damaged and once it does, it causes many problems which could lead to engine failure or a drastic reduction in performance.Ī faulty or damaged mass airflow sensor can cause rough idling to the engine and difficulties in starting. The MAF as it is commonly called is usually placed between the throttle and air cleaner. The ECU will then deliver the required amount of fuel to the engine. read also the 8 Symptoms of bad mass air flow sensor in my previous article. After collecting the information, the details will be sent to the Engine Control Unit. The airflow sensor collects details to determine the amount of needed fuel. The mass airflow sensor is the component used for detecting the flow of air that is entering the engine of a car. I also discussed the Mass airflow sensor replacement cost and much more. If you find what to do after replacing mass air flow sensor or maybe you like to know how to reset mass air flow sensor after replacement and how to trick a mass air flow sensor and if you should even perform the tricking in the first place, then you have come to the right place. Last updated on May 5th, 2022 at 09:22 am

G35 mass air flow sensor problems