The mass air flow sensor is part of the engine’s intake system and is located between the air filter and the throttle body. It is not only important for power delivery in your Golf, but also for the lowest possible pollutant emissions. What happens when MAF sensor malfunctions in VW Golf?
Full Answer
What is the mass air flow sensor on a VW Golf?
The mass air flow sensor or MAF sensor is part of the intake system in VW Golf responsible for measuring the amount of air entering the engine. Driving your Golf with a bad MAF sensor can damage the engine, so you must act urgently to avoid more expensive repairs.
What are the symptoms of a bad mass air flow sensor?
The most common signs of bad mass air flow sensor (MAF) in VW Golf are loss of power or slow acceleration, engine hesitation or jerking during acceleration, erratic idling, misfires, poor exhaust emission values and sometimes black smoke comes out of the tailpipe.
What's the p0102 code on a VW Golf?
P0102 is a very common trouble code with the Volkswagen Golf. It means the the Mass Air Flow (MAF) circuit is low, and that it is not performing within its P0102 is a very common trouble code with the Volkswagen Golf. It means the the Mass Air Flow (MAF) circuit is low, and that it is not performing within its specified operating range.
What is the part number for the Duralast mass air flow sensor?
Duralast New Mass Air Flow Sensor DL-3049 59 99 Part#DL-3049 SKU#558095 Limited-Lifetime Warranty Check if this fits yourVolkswagen Golf
Where is the mass airflow sensor located?
The mass air flow sensor (MAF) is a key component of the electronic fuel injection system in a car. It is located between the air filter and the engine's intake manifold. In some cars, the intake air temperature (IAT) sensor is built into the mass air flow sensor.
How do you remove the mass airflow sensor on a VW Golf?
0:193:27How to clean or change MAF sensor on VW golf MK4 - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo just just press it on top and on the bottom. And it comes off. So now we can turn this littleMoreSo just just press it on top and on the bottom. And it comes off. So now we can turn this little assembly. Comes out like that and here is your.
What are the signs of a failing mass air flow sensor?
Symptoms of a Faulty Mass Air Flow SensorThe engine is very hard to start or turn over.The engine stalls shortly after starting.The engine hesitates or drags while under load or idle.Hesitation and jerking during acceleration.The engine hiccups.Excessively rich or lean idling.
How do you clean a VW MAF sensor?
1:164:02(How-To) Clean a MAF Sensor on any VW or Audi 1.8T MK4 - YouTubeYouTubeStart of suggested clipEnd of suggested clipI would always use mass airflow sensor cleaner. But what I do I use CRC mass airflow sensor cleaner.MoreI would always use mass airflow sensor cleaner. But what I do I use CRC mass airflow sensor cleaner. So anyways let's get started. So you just you see is it good alright you just spray.
Is it worth cleaning MAF sensor?
It is a good idea to clean the MAF sensor every time you change or clean the air filter. A clean MAF sensor can restore 4-10 horsepower to the wheels, which is a significant number for just cleaning a sensor.
How do you test a VW MAF sensor?
1:437:24How to Test a Mass Air Flow MAF Sensor - Without a Wiring DiagramYouTubeStart of suggested clipEnd of suggested clipTurn it on and then turn our settings to 20 volts. Since we don't expect to see anything. More thanMoreTurn it on and then turn our settings to 20 volts. Since we don't expect to see anything. More than 12 volts when testing for voltage. We go to the next higher setting which is 20 volts in our case.
How much does it cost to fix a mass air flow sensor?
MAF Sensor Replacement Cost The replacement cost of a mass air flow sensor can anywhere from $80 to $380. The cost of the part alone is about $30 to $300 with the lower end of the range for common aftermarket mass air flow sensors while higher quality or more complicated OEM sensors are more expensive.
Will a bad MAF sensor throw a code?
Mass Air Flow Sensor Symptoms A faulty MAF sensor can also trigger other codes, such as those pertaining to an air/fuel ratio imbalance or an engine misfire.
How do you fix a mass air flow sensor?
0:452:40How To: Clean & Replace an MAF Sensor (Mass Air Flow ... - YouTubeYouTubeStart of suggested clipEnd of suggested clipThere's an electrical connection that plugs in at the side remove the plugs and loosen the clamps orMoreThere's an electrical connection that plugs in at the side remove the plugs and loosen the clamps or bolts on the air filter box and lift it up.
What happens if you don't replace MAF sensor?
A bad MAF sensor can cause too much fuel to be left in the combustion chamber, creating untimed detonations. You'll experience this as poor drivability such as hesitations or sudden jerking motions, particularly during acceleration.
How long do mass air flow sensors last?
Mass air flow sensors are designed to last the lifetime of your vehicle. In fact, they have no scheduled replacement interval. For this reason, the sensor is generally not replaced until it fails.
Can I clean MAF sensor with petrol?
I used a very small flat head screwdriver and got the sensor out and cleaned the wires and the metal grid on the housing. Had I had the benefit of your post, I would have simply swished it all in a bucket of gasoline, let it dry, and reinstalled it.
What happens if you don't replace MAF sensor?
A bad MAF sensor can cause too much fuel to be left in the combustion chamber, creating untimed detonations. You'll experience this as poor drivability such as hesitations or sudden jerking motions, particularly during acceleration.
How do I know if my map sensor is bad?
What to look out for in a failing MAP sensorRich air-fuel ratio: Look for rough idle, poor fuel economy, slow acceleration and a strong smell of gasoline (especially at idle)Lean air-fuel ratio: Look for surging, stalling, lack of power, hesitation on acceleration, backfiring through the intake, and overheating.More items...
Can I clean MAF sensor with petrol?
I used a very small flat head screwdriver and got the sensor out and cleaned the wires and the metal grid on the housing. Had I had the benefit of your post, I would have simply swished it all in a bucket of gasoline, let it dry, and reinstalled it.
How do you reset an air fuel mixture?
Start engine and warm it up to normal operating temperature.Turn ignition switch OFF.Disconnect mass air flow sensor harness connector.Restart engine and let it idle for at least 5 seconds.Stop engine and reconnect mass air flow sensor harness connector.Make sure DTC P0102 is displayed.Erase the DTC memory.More items...•
Faulty Mass Airflow Sensor Symptoms: Volkswagen Golf
When the mass airflow sensor has gone bad, you’ll definitely feel it. Here are the most common symptoms of a bad or failing MAF sensor:
Golf Bad MAF Sensor Diagnosis
If the MAF sensor has gone bad, it’ll trigger the check engine light and provide an OBDII trouble code. This is great because it helps you narrow down the problem. The two most common trouble codes in relation to the MAF sensor are:
Cleaning the Mass Airflow Sensor
Often, the mass airflow sensor really only needs cleaning when they go bad. Some folks recommend using alcohol because it’s usually on hand, and can clean the sensor. This is a bad idea, it can ruin the sensor. Uses mass airflow sensor cleaner. It’s really cheap and available at any parts store.
Conclusion
Replacing a bad MAF sensor can make your Golf feel like a new vehicle. Good luck with the diagnosis. If there is anything that you would like to add, please feel free to leave a comment below.
What happens if the MAF sensor fails?
If the MAF sensor begins to fail or falter, it can create noticeable symptoms that you’ll want to bring to your Volkswagen specialist to diagnose. It’s also important that you relay the symptoms accurately to your automotive shop, as they will always attempt to re-create the problem as per your experience. Here are the most common warning signs of a failing MAF sensor that you should be aware of:
What is a MAF sensor?
The mass airflow (MAF) sensor is an important part that contributes significantly to your Volkswagen ’s functioning. Since MAF sensors aren’t all made in the same way with the same parts and pieces, it’s critical to have a Volkswagen specialist attend to diagnostic and repair procedures for the part. The MAF sensor is a part that generally lasts ...
Why is the mass airflow sensor important for Volkswagen?
It helps to configure the proper air and fuel mixture to deliver to the engine for proper combustion and ignition processes. Then, with a series of other contributing components and parts, ...
Why does my car stall?
Engine stalling is often due to the engine not receiving the proper amount of fuel or air in order to combust or ignite. Usually when your engine stalls it takes a toll on your engine over time, so it’s important not to let the problem persist.
How to avoid problems with Volkswagen?
The best way to avoid problems with your Volkswagen is to keep up with regular maintenance appointments. This will depend on the mileage you put on your car. By keeping up with regular maintenance, you can catch problems early, before they cause additional damage. This will ensure your car’s health in general and will expand the lifespan of several parts to your Volkswagen, keeping you on the road longer and safer.
Why is it important to take a Volkswagen into the shop?
When these things are compromised because of an internal issue, it can be extremely frustrating. A mass air flow sensor failure can drastically decrease your car’ s safety and driving performance. Because it compromises the safety of your vehicle, it is important that you take your Volkswagen into the shop at your earliest convenience.
P0102 Symptoms: Volkswagen Golf
Since P0102 has to do with the Mass Airflow Sensor, which is a huge part of the Golf’s engine combustion process metering, it is going to cause noticeable symptoms.
Volkswagen Golf P0102 Causes
Here are the most common causes of P0102 in the Volkswagen Golf. They are presented loosely in order from most to least likely:
Conclusion
Whatever the reason for P0102 in your Volkswagen Golf, ignoring it is a bad idea. Good luck figuring it out, and if there is anything you’d like to ad, please leave a comment below!
