MASS AIR FLOW SENSOR?

1997 FORD TAURUS
190,000 MILES • 6 CYL • 2WD • AUTOMATIC
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AMARIE1121
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How do I remove the MASS AIR FLOW SENSOR? There is a star shaped screw on bottom right and a small black knob looking thing in the upper left. removed the screw, how do I remove the other?
Oct 2, 2010 at 8:09 PM
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RASMATAZ
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Hi AMARIE1121,Welcome to 2carpros and TY for the donation. Service and Repair Mass Air Flow (MAF) Sensor


https://www.2carpros.com/forum/automotive_pictures/12900_m_3.jpg

REMOVAL: CAUTION: The Mass Air Flow (MAF) sensor is a calibrated unit. Service hot wire engine element and housing as a complete assembly. 1.Disconnect battery ground cable. NOTE: When the battery has been disconnected and reconnected, some abnormal drive symptoms may occur while the Powertrain Control Module (PCM) relearns its adaptive strategy. The vehicle may need to be driven 10 miles or more to relearn the strategy. 2.Remove air cleaner outlet tube. 3.Disconnect engine control sensor wiring connector from MAF sensor. 4.Remove four retaining nuts from air cleaner cover. 5.Carefully remove MAF sensor. Discard gasket. INSTALLATION: 1.Position MAF sensor with new gasket onto air cleaner cover. 2.Install four retaining nuts. Tighten to 8-12 Nm (71-106 lb in) . 3.Install air cleaner outlet tube. 4.Connect engine control sensor wiring connector to MAF sensor. 5.Connect battery ground cable. 6.Start engine and check for vacuum leaks. https://www.2carpros.com/kpages/auto_repair_manuals_alldata.htm
Oct 22, 2020 at 10:08 AM
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BMRFIXIT
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Mass Air Flow (MAF) Sensor CAUTION: The mass air flow sensor (MAF sensor) (12B579) is a calibrated unit. Service hot wire engine element and housing as a complete assembly. Removal Disconnect battery ground cable Remove air cleaner outlet tube Disconnect engine control sensor wiring connector from mass air flow sensor. Remove four retaining nuts from air cleaner cover. Carefully remove mass air flow sensor. Discard gasket. Installation Position mass air flow sensor with new gasket onto air cleaner cover. Install four retaining nuts. Tighten to 8-12 Nm (71-106 lb-in). Install air cleaner outlet tube. Connect engine control sensor wiring connector to mass air flow sensor. Connect battery ground cable. Start engine and check for vacuum leaks.


https://www.2carpros.com/forum/automotive_pictures/99387_Capture_22.jpg

Oct 22, 2020 at 10:08 AM
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AMARIE1121
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So, this is one whole unit? You can't remove the sensor from the meter?
Oct 22, 2020 at 10:08 AM
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BMRFIXIT
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it can be done , but its not recommended
notice caution above



Sorry rasmataz
Oct 22, 2020 at 10:08 AM
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MUSTANGQWERTY
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Engine Performance problem
1997 Ford Taurus 4 cyl Front Wheel Drive Automatic
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I am having trouble locating the MAF sensor on my '97 Taurus-I would appreciate any help you can provide.
Oct 22, 2020 at 10:11 AM (Merged)
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MASTERTECHTIM
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its located right in the air filter housing on the air intake
Oct 22, 2020 at 10:11 AM (Merged)
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RASMATAZ
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You sure its 4cylinder-For a 97 Ford Taurus they all showing for a V6 engine which has a MAF sensor-
Oct 22, 2020 at 10:11 AM (Merged)
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TABICAKES79
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After I drive for about 5 minutes or so, the car smells a lot like the catalytic converter. The check engine light comes on, the car loses power on acceleration, and sometimes sputters and backfires. There is black smoke coming out of the tailpipe. The diagnostics wouldn't return engine codes, only that the mass air flow was malfunctioning. I am at a loss, its not the pcv valve either.
Oct 22, 2020 at 10:11 AM (Merged)
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CARADIODOC
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Sputtering is a sign of a misfire. The unburned fuel will burn in the catalytic converter and overheat it. The black smoke from the tail pipe is proof of too much fuel going into the exhaust system. If the catalytic converter isn't damaged already, it will be if you continue trying to drive like this. Once the catalyst melts, it will block the exhaust system. That can lead to what sounds like a backfire, but if the engine is otherwise running properly, the clue to a plugged catalytic converter is a smooth and steady hiss from the tail pipe instead of the normal "putt putt".

If there's no diagnostic fault code, how did you determine the mass air flow sensor is "malfunctioning"? What exactly do you mean by that? That sensor is the main one for determining fuel metering calculations, so if it's reporting a wrong value, you're going to get the wrong amount of fuel.
Oct 22, 2020 at 10:11 AM (Merged)
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TABICAKES79
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I am only repeating what the man who ran the diagnostics said. Someone else said I need an obd1 reader for a Ford. The muffler shop said there would not be black smoke coming out if it is the catalytic converter. I think I am being BS'd because the car is so old and nobody wants to do the work. Unless they are just as much at a loss as I am. I still think it is the catalytic converter. It smells like eggs very strong when it warms up and starts acting up. It also has a strong fuel smell when this happens. We just had a tune up, also.
Oct 22, 2020 at 10:11 AM (Merged)
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TABICAKES79
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The man that ran diagnostics said that the MAF sensor needs to be replaced or cleaned. Idk..
Oct 22, 2020 at 10:11 AM (Merged)
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CARADIODOC
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The gas smell and sputtering proves there's a spark-related misfire and too much unburned gas is going into the exhaust system where it will burn in the catalytic converter and overheat it. The egg smell proves the catalyst material is being destroyed by continuing to drive the car.

Most likely the catalytic converter will need to be replaced, but you have to diagnose and fix the problem that caused it to fail. Catalytic converters don't fail without a cause.
Oct 22, 2020 at 10:11 AM (Merged)