The mass air flow sensor or MAF- sensor is a device designed to estimate the amount of air entering the internal combustion engine. It is one of the sensors of electronic control systems of a car engine with fuel injection. It’s main function serves for determining and balancing the amount of air entering the engine cylinders. The mass air flow sensor can be used in conjunction with air temperature and atmospheric pressure sensors, which correct its readings.

Device

mass-air-flow-sensorAs a rule, resistance thermal anemometers are used as mass air flow sensors in which a sensitive element heated by electric current and performing the functions of thermal resistance is placed into the air flow. The sensor consists of two platinum filaments heated by electric current. Through one thread, cooling it, passes the air, the second is the control. By changing the current passing through the air-cooled platinum filament, the amount of air entering the engine is calculated. The mass air flow sensor is always located in the air inlet, between the air filter and the hose going to the throttle valve.

Application

Air Flow Meter on VW Golf TDIBased on the information received from the sensor, an electronic control unit (ECU) determines the duration of the opening pulse of the injectors and, accordingly, to calculate the required amount of fuel in order to maintain the stoichiometric ratio of fuel and air for given engine operating conditions. Also, information from the Air Flow Meter is used by the ECU to calculate the engine’s point. The ECU, taking into account the values ​​of mass air flow (for calculations it is translated into the parameter Cycle air flow, or Engine load, in most modern ECUs), engine temperature and engine speed, can calculate the engine load and based on this information not only the amount of fuel supplied to the engine, but also the ignition timing, thus controlling the torque of the power unit.

Looking For an air flow mass sensor for sale? Complete the part request form and instantly contact our network of scrap yards. Whether you you drive a BMW, Audi, Volkswagen, Mercedes Benz or Opel, we’ll help you find a used or replacement air flow sensor.

How To Clean Your Air Flow Mass Sensor

Previous Part Requests

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Year
Model
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Submitted
Eazi
Audi
2012 A3
TRUZZZ8PC41005595
RH Door Mirror
RH Front Fender
2019-11-22 07:44:06 +00:00
Faisal Syed
BMW
2006
WBAEJ92090NA39273
Looking for Front Left fender
Front bumper (with small fog lights brackets), front bumper beading, front bumper l.h.s grills.
2019-10-08 06:12:33 +00:00
Lesego Elesang
VW
2015
wvwzzzauzfw344218
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2019-10-01 17:49:48 +00:00
Tshepiso Mafora
BMW
2012
WBA3B160X0NN76120
I'm looking for the following parts:
Rear Bumper Cover
CTR/Rear Bumper MLDG
Towing Eye Cover
Rear Bumper Support
Rear Taillamp
For BMW 320i Luxury Line 2012 model

Your assistance will be highly appreciated
2019-09-30 10:26:42 +00:00
Eric
Mercedes
2001
wdc2034052r008318
Kindly quote me on maf complete harness, pcv, lcd pixel for the cluster, front schocks, and fuse box harness.
2019-09-14 08:02:11 +00:00
Kevin
Opel
2007
WOLOAHL4875006221
Hie am looking for an H-engine rear main seal (one with plate which sits the fly wheel and is the housing of the Crank sensor) . Am also looking for the power steering system of the same engine . Your reply will be highly appreciated thanks.
2019-08-30 18:23:08 +00:00
Nkosinathi
Mercedes
2013
WDD20404482R283536
I need engine for car above
2019-07-07 08:56:05 +00:00
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Audi
2005
Wauzzz8e72a144088
I need control arms and lower grill with fog lights
2019-07-05 16:16:39 +00:00
ANDREW
Mercedes
1990
1240196C020894
I AM LOOKING FOR CYLINDER HEAD OR COMPLETE ENGINE F0R MERCEDES 124 SERIES E 200 M111 ENGINE
2019-06-09 18:34:39 +00:00
Jan
VW
2014
Wv1zzz2hzea053424
Ac heater control unit this one have 2 knobs with
2019-05-28 09:16:38 +00:00
Wandile Manel
Audi
2004
WAUZZZ8E15A120633
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Terrence
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2009
W204
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2018-11-02 07:29:23 +00:00
Wardson Mokoena
Mercedes
2003
WDC2030642R087729
Im looking for Water Pump and Water tank for this vehicle. Pleae end me a quote.
2018-10-10 20:15:35 +00:00
Hugo
Mercedes
98/99
2020206F610021
Hello im looking for airflow sensor MAF and hood boot spoiler and front bumper top Moulding strips R/L
2018-08-09 05:19:58 +00:00
Ismail Bokhary
Audi
2000
AAAZZZ8DZYU002642
I'm looking for a throttle body and maf sensor plug connector
2018-06-15 01:42:41 +00:00
Fritz
Mercedes
2000
ABD2020266F94513
I need quote of tappet cover gaskets and MAF sensor
2018-04-15 08:44:47 +00:00
Coen
Mercedes
1996
ADB2020226F317875
MAF sensor MB 000 094 00 48 or Bosch 0 280 217 100
2018-02-20 05:12:45 +00:00
Mafix
Mercedes
2003
W203
I am looking for Mercedes Benz c200 kompressor w203 automatic Gearbox model 2003/2004 . my engine is the one with a red cover.
2018-01-26 03:07:17 +00:00
Paul Heine
Mercedes
2014
WDD2040482R321309
I need a right side fog light and holder.
2018-01-05 15:50:05 +00:00
Chris
Mercedes
2003
WDC203006R115217
Need a MAF (Mass air flow) sensor.
2017-12-29 08:28:08 +00:00