how to reset mass air flow sensor bmw

The mass air flow maf sensor is placed in the stream of intake air. Httpsamznto2KqcW0BIn BMW terminology - Hot Film Air Mass Meter - which is also known as a MAF or mass air flow s.

P0100 Mass Air Flow Circuit Malfunction

Resetting the Mass Air Flow Sensor by Idling the Engine.

. Turn off the engine and let it cool down if youve been driving. Stop engine and reconnect mass air flow sensor harness connector. The mass air flow sensor or MAF sensor is part of the intake system in BMW X3 responsible for measuring the amount of air entering the engine.

When you change a maf sensor you need to disconnect the battery for about 10 minutes so the computer forgets the learned parameters and resets to the factory parameters. The mass airflow sensor is a key sensor in your car. Remove the connector with the harness of the sensor.

There is a sensor on the air intake called the mass air flow sensor. Make sure DTC P0102 is displayed. Remove the sensor from the intake air duct.

BMW - Mass air flow sensor reset Coverage in BimCOM. CRC MAF Mass Air Flow Sensor Cleaner. Remove plastic cover protecting MAF harness.

Put your multimeter in Volts DC mode V and connect one probe of the multimeter to a good ground point on your car like the metal frame or engine block if you cant find any suitable metal parts use a plastic cover for instance. Intercooling of charge air. When the mass air.

Restart engine and let it idle for at least 5 seconds. Returning learned values of the intake system to the initial state. Connect the second probe of the multimeter to the black wire of the Mass Airflow Sensor.

Your car has a lot of sensors and this is just one that helps your car run properly. Replacement for bmw part 13627567451. But I want to force the DME to start over especially if the replaced part was severely bad.

How to Reset the Mass Air Flow Sensor. Disconnect mass air flow sensor harness connector. Erase the DTC memory.

Intake manifold flap actuator. The stored compensation factors are reset to 0 in the process. Use q-tip or MAF cleaner soaked paper towel to gently clean exposed wire sensor.

We sell oem air mass sensors air flow meters and hfms hot film meter for many bmws. I always reset DME adaptations using BMW Scanner 14 or INPA and clear trouble codes after replacing parts that affect the fuel or air control such as MAF O2 sensors ICV throttle body etc. If stuck use a small flathead screwdriver to gently lever it out of the duct.

As mentioned before therere two ways you can do it. Lifted from X forums. In this article we will look at what happens when you disconnect the mass airflow sensor.

I have changed my mass air flow sensor twice with oem parts reset the code multiple times put a new kn air filter in and the light still comes with in 3 or so miles. Refit the mass air flow sensor to the car. If the O-ring gives you a hard time going in apply a.

Install a new mass air flow sensor into the air filter housing. Dont know if this works the same for every vehicle tho. That brings up the question of can your car run without the mass air flow sensor.

This is just a matter of course and often may not be needed. Hold over paper towel on workbench spray with MAF cleaner. Remove 2x torx screws for MAF.

The mass airflow sensor maf measures the amount of air entering the engine and the engine control module ecm uses the information to determine the proper amount of fuel quantity and ignition timing. The passing air cools the wire down. The job of the mass air flow sensor.

Now that you know when to reset the mass air flow sensor lets show how you can do it. Driving your X3 with a bad MAF sensor can damage the engine so you must act urgently to avoid more expensive repairs. The following learned values will return to the initial state.

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