reset mass air flow sensor bmw e46

I bought a 2004 X3 recently and even though the Check Engine light was not on I did buy a can of Mass Air Flow sensor cleaner and cleaned the MAF. M54 Fault codes attributable to this system such as Secondary Air Flow Too Low are.

13627566983 Genuine Bmw Mass Air Flow Sensor Maf E46 330i 330ci Z4 3 0i X3 M54 3 0l Turner Motorsport

Do not attempt to clean and reuse the filter - it will affect the quality of air cleaning inside the car.

. Unscrew the fasteners of the cabin filter housingUse Torx T30Use a ratchet wrench. It will be near the intake manifold or throttle body and it will likely have a large electrical connector going to it. Be had by removing the air filter box mass air flow sensor and throttle body and all Wire colors vary depending on the model see wiring diagrams in the 3 Series E46.

Perform this coding also after removing the leak on the intake system. We sell OEM air mass sensors air flow meters and HFMs Hot Film Meter for many BMWs. Start engine and warm it up to normal operating temperature.

Returning learned values of the intake system to the initial state. Next spray a small amount of contact cleaner into the electrical connector. BMW Mass Air Sensor Air Flow Meters for BMW 3 Series E46 1999-2005 Clear BMW chassis.

In normal operation the air mass flow meter is subject to effects such as soiling and ageing. 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. Edit Tags History Files Print Site tools Options.

Only show this user. 29 Jan 2020 1719. Plug in the MAF sensor and turn the engine on.

If you dont have any contact cleaner on hand using WD-40 or another similar product will work in a pinch. Put it in and EVERY code is gone car runs great. First to cool your cars engine down you need to turn it off.

Restart engine and let it idle for at least 5 seconds. Lately I noticed when driving engine sometimes seems to loose power alltogether but then again it kicks in and drives normally. Those effects cause divergence between the stored characteristic and the specified status resulting in symptoms such as lack of power or black smoke.

In order to prevent the effects of this problem the Air mass flow meter. 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. This is just a matter of course and often may not be needed.

The transformation was remarkable - the engine seemed to pull with. Stop engine and reconnect mass air flow sensor harness connector. Resetting the Mass Air Flow Sensor by Disconnecting the Battery Remove the old MAF sensor and replace it with a new one Before you connect the sensor with its harness disconnect the battery from the ground cable Leave it like that for around 10 minutes The whole system will be reset now.

Finally I said screw it and bit the bullet for a new name brand one at that point I didnt care I had to rule out the mass air sensor for peace of mind. BMW - Mass air flow sensor reset Coverage in BimCOM. Turn ignition switch OFF.

Idling The Engine. You now have to take the MAF out to clean it. I changed 02 sensor on bank 1 and spark plugs ignition coil and ignition coil leads but it is still doing the same.

I was reading somewhere that these symtoms could be associated with Mass Air Flow sensor failure. The engine still drove like it was a bit breathless so I bit the bullet and bought a brand new MAF sensor. Now you all know what a defective or cheap mass air flow meter is capable of you get what you.

After the engine cools down you can go to the mass air flow sensor location and remove the connector from the sensors harness. 4 Jan 13 2017 Edited Only show this user. Your fuel mileage will suffer throttle response will be poor and you will notice a lack of power.

First locate the MAF sensor. Mass air flow sensor BMW E46 Touring. Disconnect mass air flow sensor harness connector.

The Mass Airflow Sensor P0102 trouble code is set when the ECM detects a low voltage output from the Mass Air flow Sensor. Answer 1 of 2. This is very important if you have just used the car.

When the mass air sensor is bad you will notice your engine running out of tune. BMW Air-mass Flow Sensor Reset For Diesel Engine. HOW TO CLEAN MAF SENSOR ON BMW E46 320I 323I 325I 328I 330I 318I 316I 318D 320D 325D 330DIf you have BMW and you have code P0102 Mass or Volume Air Flow A Ci.

Fault Code Definition. I ordered a new VDO mass air from Autohaus.

How To Trick A Mass Air Flow Sensor Perfectly Guide