2008 bmw 328i mass air flow sensor problems

You can also hold the engine at certain RPMs to check the MAF sensor value there.

The number should increase dramatically, since a lot more air is suddenly rushing into the engine. It should change slightly but stay close to the same value. When the car is warmed up and idling with the air conditioner off, this should be a fairly small number. You should see a number that corresponds to how much air is going into the engine. Plug your scan tool into your car’s OBD2 port, go to View Live Data, and check the MAF sensor readings. If your check engine light is on and you suspect the mass air flow sensor is the cause, you can test this with an OBD2 scan tool like the FIXD scanner and app. Thanks to OBD2, the ECU is constantly checking data from the MAF sensor and other sensors in your engine to make sure everything is working properly. How Do You Test the Mass Air Flow Sensor? See Step 1 below for an image of where the MAF sensor is located. Look for a sensor sticking into the middle of the intake tubing, often near the air filter for easy access. The exact location varies from one vehicle to another, but it’s generally somewhere in your air intake system between the air filter and the intake manifold. If you don’t feel comfortable cleaning the mass air flow sensor yourself, don’t worry! Here’s how much it will cost to have a professional replace it. This gives the ECU inaccurate information and causes an incorrect air and fuel mixture. Sometimes this sensor can get clogged with debris or fail entirely. The mass air flow sensor (MAF) enables the ECU (the computer that runs the engine) to calculate and add the proper amount of fuel to enable the engine to run at peak power and efficiency. What Is the Mass Air Flow Sensor and What Does It Do? Screwdrivers, wrenches, and whatever else is needed to access the mass air flow sensor on your particular vehicle.Time Required: 5-90 minutes, depending on how easy or difficult it is to reach and remove the mass air flow sensor on your particular vehicle.DIY Difficulty Level: Beginner to Intermediate, depending on how easy or difficult it is to reach and remove the mass air flow sensor on your particular vehicle.Here’s Everything You Need to Know to Clean Your Mass Air Flow Sensor at Home. Cleaning Your Mass Air Flow Sensor Is a Beginner To Intermediate Job for Most DIYers.

2008 bmw 328i mass air flow sensor problems