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Car Forum / Volkswagen / Water Cooled Volkswagen Cars / October 2008Mass Airflow Sensor
What is this? What does it do? Where is it commonly located? If your car has one it is located between the air filter box and the turbo, or the intake manifold. Mass Air Flow sensor. Google is your friend. >What is this? What does it do? Where is it commonly located? > What is this? What does it do? Where is it commonly located? It measures the amount of air going into the engine. > What is this? What does it do? Where is it commonly located? Determines the amount of air through the air filter to the air intake mainfold. Does this by a sensor in the air flow path by moving per the amount of air going through that path, and, delivering a (electrical) current in reflection of that sensor movement. Seldom breaks or degrades, leave it alone.  SignatureDave Thanks for the answers. >Seldom breaks or degrades, leave it alone. Although the earlier a4-platform VWs had one that did have a higher probability of failing. Signature------------------------------------------------------------------------ Timothy J. Lee Unsolicited bulk or commercial email is not welcome. No warranty of any kind is provided with this message. Same with the A3's. AND it was expensive as hell. The worst thing you can do to destroy the MAF is put an aftermarket cold air intake on it with an over oiled air filter. The oil coats the MAF which then burns off and leaves a deposit that screws up the readings. >>Seldom breaks or degrades, leave it alone. > > Although the earlier a4-platform VWs had one that did have a higher > probability of failing. Chilton claims the mass airfllow sensor can cause running problems if it's failing: stalling and idle problems yep I have yet to see a bad one yet, but I have heard of them. ;-) > Chilton claims the mass airfllow sensor can cause running problems if > it's failing: stalling and idle problems > Chilton claims the mass airfllow sensor can cause running problems if > it's failing: stalling and idle problems Had our 2000 Jetta in the shop three times with a stalling and idle problem. They changed out the MAF Sensor twice, only to have the issue raise it's head again. On the third try, they found the electrical plug to the sensor to be faulty and changed it out. No problems since. Ray in Texas My MAF was causing stalling and idling problems on my 97 Jetta. I used the alcohol cleaning scheme that is on vwvortex about 50,000 miles ago and haven't had a problem since then. At that time, VW or any other supplier wanted over $500 for a new one while other years' MAF only cost around $50. I see the price is coming down now. I don't know what makes mine so special. >> Chilton claims the mass airfllow sensor can cause running problems if >> it's failing: stalling and idle problems [quoted text clipped - 5 lines] > > Ray in Texas also has internal air temperature sensor. > What is this? What does it do? Where is it commonly located? |
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