For many years now electronics totally took over our cars. Until the early 90s, very few gasoline cars used injection systems controlled to “feed” fuel and air to their engines. The anti-pollution regulations they were becoming more demanding and manufacturers had to resort to electronics to meet the required values. The result of this were devices such as the maf-sensor.
The most common gasoline cars used carburetors, while the diesel equipped injection pumps without electronic control. Electronics have made it possible to reduce consumption and emissions, as well as significantly increase mechanical performance. Currently countless parameters are controlled electronically to adjust the injection to the maximum. One of the most important elements is the MAF sensor or Mass Air Flow Sensor.
MAF Sensor Operation
The MAF sensor, for its acronym in English "mass air flow”, and also known as air flow sensor, is located in all vehicles before the engine intake manifold and after the air filter. We said that its function is very important, and it is that this element is in charge of measure how much air the engine is sucking in at all times to "communicate" through a electrical signal to the switchboard, which collects all the parameters and information of the engine.
The air flow meter has inside a fine platinum wire (like some spark plugs), also know as "hot thread”, that when the engine is running heats up up to 200 degrees, a temperature that must be kept constant. Depending on whether the engine receives more or less air, said temperature will tend to decrease more or less due to the cooling caused by the air current (the greater the quantity of air, the greater the cooling).
Since the platinum wire must be at a constant temperature, it will need more electrical current to stay at those 200 degrees. That current that you need at each moment is processed by the UCE, so electronic management is already know how cold it is the hot wire
Surely you have thought that the platinum wire will tend to cool more or less depending on the air temperature And not just because of the quantity. You are right, but for this our cars have a intake temperature sensor. In the end, the UCE calculates these data, and many others (such as atmospheric pressure), knowing perfectly and instantly the amount of oxygen that reaches the intake of our engine.
How to clean the MAF sensor
If we detect any anomaly and we know, through diagnosis, that the fault comes from this device, before disassembling We will visually check the different connections. We will check the status of electric cables, which as a general rule will be three, and the connector itself. If at first glance everything seems to be in order, it is very likely that the internal part of the sensor is contaminated, dirty to understand us.
With the passage of time and kilometers it is possible that this sensor traps dirt and does not transmit the correct information, so it will not perform its function well. Although the intake circuit has an air filter before the MAF, it is possible that some small element "sneaks in" and remains on the hot wire, as well as traces of dirt, insects or oil particles. When recording values outside the established parameters, it is very likely that the fault warning light engine in the frame and also that our car loses strength.
How to get to the inside of the air flow sensor
To clean it we will proceed to extract it. depending on the car it will be necessary to remove some staples or screws, as well as surely we also have to remove the air filter box itself. let's not forget about “unplug” the connector which incorporates the air flow sensor. It is also important to extract and treat very gently this element and not touch it directly, since it is quite fragile and if the platinum wire breaks, it would mean having to buy a new sensor.
Once we have extracted it, we will carry out a visual inspection. If the thread is broken, as we said, we will have no choice but to buy a new MAF. To leave it "like new" we will use antisulfate cleaning sprays for electrical contacts that are usually sold by any spare parts store. We will apply it to the entire area of the wire and after a few seconds the wire should show a gray color again. We repeat: this small wire should not be touched with the hands.
Later, it would not be out of place for us to take the opportunity to wipe the inside of the pipe of air, since it surely has dust, remains of a leaf or insect, as well as oil particles from the engine itself. To finish, we will reassemble everything and leave it as it was before, without forgetting to connect the sensor and to treat the sensor with enough care.
Damaged MAF Sensor Symptoms
If the error continues once we have placed everything as it was before, the last operation that we can carry out by our own means and in a relatively simple way is to make some electrical checks on the connector using a multimeter or multimeter. In addition to having this device, it will be It is important to have an electrical diagram of the sensor in order to know what function each cable has.
Keep in mind that for these checks we will have to have at least the contact activated and that, depending on the model, we can find three, four or five cables. Logically we must have the connector plugged.
First we will check, puncturing with one end of the multimeter the B+ terminal (supply) and with the other ground, if the sensor receives power. To do this we will put the tester in the voltage measurement position (Volts). Depending on the model, it will give us one voltage or another, but normally it will not be below 5 Volts and in no case will we receive a voltage higher than that of the battery. If the multimeter registers a value between this margin, we will go on to the next check.
Later we will verify that the circuit has ground. We will put the multimeter in continuity position. First of all, let's try joining both metal tips of the tester if it beeps, so we make sure that the device's buzzer works, which sometimes breaks down. With one of the ends of the device we will click on the ground terminal and with the other in some of the masses or metal parts that we usually find around the engine compartment. If the dough is correct the appliance should beep.
La third and last check What we could do is signal measurement, although in this case we must start the vehicle and another person will have to help us. We put the multimeter in voltage position, we puncture with a point in the signal terminal y with another in the mass. If the multimeter screen shows us a voltage value, we will have to ask the other person to slowly accelerate the motor. If the signal is correct It should increase as the engine speed increases. the motor.
Making a brief summary, we can say that the MAF sensor or Mass Air Flow Sensor he is in charge of measure the amount of air that reaches the interior of our cylinders, measuring it thanks to a resistance. If we detect a fault that comes from said sensor, we will try to carefully disassemble it and clean it internally and very carefully. If the fault continues we can perform some electrical checks to determine the cause of the electrical fault, although we will have to help ourselves with a multimeter.
Picture 6 – zmtomako
I NEED A MAF SENSOR FOR A FORD MERCURY VILLAGE TRUCK YEAR 93 Nª AFH 50-15, WHERE CAN I FIND IT?
There is a very reliable provider who gives excellent service, his name is Eduardo and his nextel is 01.33.16.11.72.70 he has it, good luck
JUST REMOVE IT AND CLEAN IT
how to clean maf air sensor
HOW TO CLEAN THE MAF SENSOR OF A GRAND VITARA
It is precisely the problem that my car presented, thanks to all the information provided here I was able to determine and correct the fault.
My Nissan maxima 2000 car turns on and off and when it turns on and I give the gas it suffocates K could it be
It is important to make this type of information documentaries on automotive mechanics, because this is how it is encouraged and formulates a new way of educating for free, what is related to the world of automotive mechanics, thus contributing to the grain of sand to make a more educated society and communication with each other as members of this diverse society.
I need the average price of a maf of a nissan sentra mod 1993 2.0 double tree 16 vul,
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Hello, I recommend this supplier to me, it has obtained all my MAf, since I have an agency that rents cars, fuel1@prodigy.net.mx, contact him
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I need an air flow control for a nissan sentra 2000 (Mexican) I have the car in the Dominican Republic, which is where I live... how much will it cost me because it is very expensive here.
good, I need an airflow control for a contuor 96 how much do you think it would cost?
Hello, I need the maf sensor for a nissan sentra/2010, how much does it cost me?….I live in Salinas, please answer.
I need a MAF sensor for a Toyota Land Cruiser VX year 93 Japanese version. Turns out my vehicle is using too much fuel, and the shop tells me that's why. Can someone give me an idea to improve consumption until I get the spare part?
buy a high flow synthetic air filter
I need a maf sensor for ford laser year 2002, because the one in my car was scratched and I couldn't find it, wait for a prompt response, I need it………
I need a MAF sensor for a 2000 6cyl X-TERRA. 4×4, I'm short on gas, I'm from Cuauhtemoc Chihuahua.
i need air flow sensor for nissan bluebird model 1994
hello I need an air flow control for a nissan sentra 95 full .. how much does it come out here
I need an air flow control for a nissan sentra 2000 (Mexican) I have the car in the Dominican Republic, which is where I live... how much will it cost me
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question for the mechanics, I have an oil tanker flow sensor, it asks the gas station if the hose enters the mouth of the shutter
Hello friends, I wanted to know a question with what voltage do the sensors work? It may be that they work with 5 V. I wait for the answer thanks
I have an impala 2000 I sent it to scan and they told me it was the maf sensor the fault is loss of force and it does not change frequently I have to keep it at a speed of 80kms per hour and so it changes what do you recommend
Good day. I have a ford laser 2000.1.8
It presents a fault that faints and shakes a lot
I give him chola but he doesn't respond or responds very little and sometimes when I start. could it be this sensor?
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how do you connect a 20000 flow mass air sensor
I have a nissan model 94 but it is giving me a problem the engine does not match and when I am running and I stop the engine goes down and up in revolutions and they change the gasoline pump, filters and everything related to gasoline and candles but it continues with it same problem could someone help me determine what it is, thanks
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could be the iac valve that is responsible for maintaining idle
I NEED AN AIRFLOW SENSOR FOR SUBARU IMPREZA MOD. 94 THANK YOU EMAIL:recrearclub@hotmail.com Cel. 311 623 02 71 luis enrique muñoz
HELLO FRIEND I NEED A MA F SENSOR FOR A RODEO 4X4 OF THE YEAR 1997 WITH FOUR CYLINDERS. IF SOMEONE CAN HELP ME THE PHONE NUMBER IS 090987722 MY NAME IS FREDY MALDONADO, TELL ME HOW WE DO THE BUSINESS MY EMAIL IS fsmald1@yahoo.com
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What price does this sensor have on the market?
hello I have a subaru impreza 1.6cc year 95 when I accelerate in first gear it sucks it will be a problem with the maf sensor
hello I have a nissan sentra 1.8, 2001 and my problem is that it spends a lot of fuel, and the engine shakes, it is not even, besides losing power for a while
They told me it was the maf sensor, I bought it and the problem continues. I have taken it to many places and they have told me so many things that I don't know what to do anymore.
Hi, my name is Pedro. I have a Nissan Sentra 1.8. 2003 I have the same problem and I changed the sensor and it continues to mark and if I run it jerks and the engine loses all power if you already fixed your car tell me how, did you help it please...thank you
Hello, it must also be the injectors for the same reason as the spark plugs, check them and see if they are not wet
Hello, it must be the injectors, if you are consuming too much fuel, send him to have the injectors washed, or do you have a wet spark plug, because if you just changed the sensor, the spark plug was wet with fuel, since it is not enough to make a spark and that is why it trembles and you spend more fuel because the computer reads only three pistons and tries to compensate for what the other piston is not consuming, I'm not a mechanic but I've had that problem I hope it helps you... regards
hey they already answered you about your problem that your car has
hello I need a maf sensor flou mirer for a pontiac boneville year 93 engine 3.800 where can I buy it and how much will it cost I live in chihuhua
I need in maf for an exprorer 91 engine 4.0 where can I get it and how much
what is the price in the nissan agency of this sensor for sentra 2001
Could you send me a photo of the diagram of the maf air sensor of the nissan bluebird model 1994
Hello, I have a 2003 Japanese version Nissan Almera, the problem I have is that every morning I have to wait for the car to warm up in order to accelerate or start it, otherwise it will turn off... The mechanics tell me that it is the MAF ( Air flow) is that so? Can someone help me because that part is very expensive but the one with the Nissan will work very well. Thank you very much.
Does anyone know where I can get the MAF sensor (air flow sensor) for a seat ibiza year 2002... thanks
I HAVE A 2.2 VECTRA 2003 AND THE MAF FAILS IT, IS IT ENOUGH TO JUST CLEAN IT OR IS THERE A NEED TO CHANGE IT
Buenas tardes. I have a 1.8 impreza 1994 and I just changed the MAF, it stopped smoking black but it still consumes too much gasoline. What can I see to see if I detect the fault?
Hello, my name is Kay! I have a 98 Ford Explorer 4.0 sohc engine. The problem is that one day the car lighter stopped working, then the horn; then it started with a terrible fault, it has no strength, the revolutions are in range at 200 or 250 and parked at 500 revolutions, the engine trembles, it makes a noise, you accelerate it and it drowns.
The pairs had already been changed a month ago. With the failure, I changed the cables of the espares and again the espares because they were black, the catalytic converters emptied them because they were red hot. but the error still follows.
I don't know whether to tune or clean the injectors, change the MAF, the IAC Valve, the Oxygen Sensors or if it's valves 2 and 6.
I will appreciate your help. Thank you
hello, I have a fiat 1 that when starting it tends to turn off. I checked spark and air inlets but it doesn't work
HELLO, I HAVE A ZETEC MOTOR ESCORT AND IN THE MORNING WITH THE COLD IT IS HARD TO START, LATER IN THE HOT IT HAS NO PROBLEMS AND WHEN I'M RUNNING IT'S LIKE IT TURNS OFF, I START IT WHILE RUNNING, BUT IS IT THE MAF THAT IS FUCKED? DO NOT OPEN ANOTHER ALTERNATIVE TO SUPPLACE THAT THANKS FOR ANSWERING.
Good afternoon, where can I get the airflow sensor for a Twincam 13000? Thank you
Twincam is the type of engine valve system…what car is it?
Sorry it's 1300!!!!
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I have a pathfinder 05 makes a little failure when entering the second speed I want to know if it could be the maf
Maf of my car is disconnected and when I connect it it turns off
Who can help me with that of the air flow sensor! Maf!
hello I have a nissan sentra 96 and when I'm running the engine jerks and loses power and if I accelerate it turns off I would like to know what problem you have
is 1.6
hello I have a sentra 96 4 cil 1.6 I have a problem when I'm running
it jerks and loses the power of the engine I would like to know what the problem could be
I would like someone to answer me
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hello brother I have a Ford laser the maf sensor has something to do with the engine ignition
Hello, I have an xterra 2000, my problem is that the instrument panel stops working when I drive, it works again and then it falls and does not work, after it cools down it returns to normal and after a while it stops working, if someone can you help I will be very grateful
Hello friends, I'm Josué and I'm looking for help. I have a BMW. When I start the car, it starts to shake a lot and when the engine warms up, it stops warming up. What will be the problem? Can you help me please? 8327293631
good afternoon I have a ford laser year 98 I would like to know what is the original position of the cables that connect to the 5-pin maf sensor
hello, good evening, I wanted to ask for advice if someone can help me, I have a sentra 02 1.8 standard, which started with a misfire, it turned out that it was the head gaskets and the tuning was given, once fixed the car presented another fault the car now jerks when it is running and then it vibrates too much and the exhaust is constantly heard as if it was not burning well, first they thought it was a coil since the computer marked that, tests were done with other coils and no improvement was seen, later it was tried with other computers and the degree to which the coil burned did not come either, it was also moved to the timing chain but only the chain was removed, the whole kit was not bought, well, not until now we know what it can be, if someone can help me I would really appreciate it :)
I need to buy an air sensor for a nissan centra year 95 from the agency, it has 3 holes, it is a B14 GA16, can you please quote me how much it costs
GOOD NIGHT. WILL YOU BE ABLE TO HELP ME HOW TO LOCATE A MAF SENSOR IN THE ORIGINAL GRAND VITARA 6 CYLINDERS 2007. I WOULD THANK YOU
good afternoon, I am interested in knowing the price of the maf sensor for my truck, it is a 1995 american nissan pick up model, for your answer receive a cordial greeting
good evening I need to locate an air flow sensor for nissan sentra B14 model 98 1600 second original
and the value please
hello! I need a maf air flow sensor, from a mitsubishi mf year 97, code 482 please whoever has it, or knows of someone who can facilitate it, notify this number 04164343100, 04244065266, new or used.
Dear, I need the connection plan of the MAF sensor of a subaru legacy year 98 automatic transmission, the sensor has 4 connectors but the vehicle connector only 3 are connected and it has a cable that is not connected, if someone can help me I would appreciate it much.
regards
Hello, good afternoon, I have a Nissan pathinder from 2006, suddenly it has started to drown when I put the first, second and third marks, it is difficult for it to come out cold and it marks behind it, which could also be
hello good day I have a mitsubichi model 91 engine 2.4 and according to me they scanned the maf marking failure where I can get it or has it repaired
hello i need a 5 pin maf sensor for my for laser this is my email richard_tovar1@hotmail.com
hello i have a problem with my volvo
GOOD NIGHT I NEED AN AIR FLOW SENSOR FOR A BMW 323IT 2000 MY EMAIL IS maco_ag9@hotmail.com
I NEED THE AIR FLOW SENSOR OR MAF SENSOR WITH 6 COLORED WIRES FOR THE 4 TOYOTA STATION WAGON 4X1993 TRUCK AND HOW MUCH WOULD IT COST OR WHAT IS THE PRICE...?
Hello, I would need a little help to find an air mass meter with the VDO reference 93 084 001 for a Mercedes benz class A petrol 1.4cc thanks to all simonbf21@hotmail.com
I need a mechanic
I have Mercedes Benz 500 2001
the air suspension does not work
It goes down and does not go up
Good afternoon, I need what voltage leads to the flow or volume sensor cables of a sentra 2001 2.0 engine
hello, how much does a maf sensor cost for an american sentra 96 thanks
where can i find a nissan sentra maf sensor in tijuana
it will be possible to help me with the volumetric air sensor of a mitsubishi model 1998 I thank you for your help I live in Quito
An American model 94 billager burned and I want to know the colors of the other lines on the map and tpc
Part of the engine harness was burned and I have the lines but I want to know what colorba packs the sensor
I need a maf sensor for subaru printed American version without turbo it fails too much it's like drowning what can I do or how do I get that part?
I have starting problems of my toyota hilux year 1998 bencinera it costs it to start cold, part of the revolutions go up and even if I accelerate it, the rpm decrease and the engine turns off
It does not have the check turned on, someone knows what it could be or knows some resistance values of the iac valve. maf sensor. tps sensor .. I think the problem is x there
Excuse me, does anyone know where I can get the maf sensor of a maxima 87?
i need a maf sensor for a 93 nissan bluebird sss
hello I have a problem with a nissan navara….. I connect the camshaft sensor and it turns off,,, I already checked the injector pump point, change the sensor and the problem continues
I have a problem with the maf sensor of my car it is a 1.8 laser I got one but it is from a 1.6 engine the plug is the same
Good day I have a maximum 2000 the problem is that it does not start because it wets all the gasoline spark plugs someone help me please
Please help. I need a maf for Tsuru III, Mod. 96, 3-pin, fuel injection, 16 valves. Where can I buy it?
help I have 1 malibu 2007 4 cylinder automatic 2.2 engine stopped working they changed the diguenal sensor and fixed the fuse box and it was working but it failed the temperature went up they told me it was the maf they put it on new and it failed they disconnected it and it was working fine without connect it
i need airflow for the chevrolet twincam 1300 model 96 please
plz i need airflow chevrolet twincam i need it
Hello, can someone tell me where the maf sensor of a hyundai elantra 2008 car is located..
I have an explorer 98 5.0 but the maf sensor is bad. I bought one if the gas consumption decreased but not as it was. I took it to a mechanic but he tells me that it has to be the same number. How do I know if the one they sold me works? If someone can help me a lot I will appreciate it
Good night, I'm looking for an air flow sensor for a 2003 nissan almera. I appreciate the information
I need the maf sensor of a susuky swift year 94 engine 1.3 I would appreciate km if they told me where I could find it
Hello, I am looking for the air shutter that includes the minimum sensor for a Nissan Pathfinder 3.3 year 2000. Thanks
For the 2001 nissan sentra I had a problem with the maf sensor, but also with the spark plug coils, check that
good morning, how many pins is the maf sensor of a for focus year 2005
good evening I need a mab sensor for a original 2600-pin mazda B97i model 6
GOOD AFTERNOON, THE SCANNER CAME UP WITH A PROBLEM IN THE MAF, I NEED THE MAF FOR A 2006 SANTAFE HUNDAY TRUCK, HOW MUCH DOES IT COST AND WHO SELL IT
I have HI LUX TOYOTA truck year 2002, and it has 5 cables to connect, I NEED HELP IN WHAT ORDER ARE THEY CONNECTED? , BECAUSE I WAS STOLEN AND ONLY THE CABLE WAS LEFT
THANKS A LOT
I have a nissan sunny year 95 car. I need to know the cost of a maf in Piura (Peru)
Hello:
I have a 2002 Nissan Pathfinder that does not regulate the starting minimum. With the scanner it has not been possible to detect the exact cause of the problem.
From this moment I thank you for your answer.
a question that affects so much if the sensor is failing on a pathfinder 99
I need to make a device capable of measuring the amount of circulating air flow or sent to a certain part, could someone tell me if it is convenient or possible to implement the MAF.
hello qtal friend, I have a 2007 Nissan bluebird, the problem it has is that with the cold engine it starts at once, but when I go out for a 20 to 30 minute drive and wait again for about 5 minutes it's already hard to start, the engine turns a lot and it doesn't work departure immediately. We already changed the beak, pump, battery, total cleaning of the electric cable, it's still the same. if someone could help me
How is a new maf sensor installed in a VW Sharan Diesel regulated?
I notice the car without power, it is more with less power than the one it replaces
I just changed the sensor of my car VW Rabbit 2.5 year 2007 automatic, when the speed is in neutral it accelerates up to 2000 rpm, can someone give me information why this happens or what could be wrong?!
I have an imported 2000 Ford fiesta 1.4 setec where can I get the 4 pin MAF sensor