Question about 1999 Lexus RX 300

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How do I change a mass air sensor?

I need to know how to change a Mass Air sensor?? if anyone has a pic of what it looks like still in the car please send me the pic or a website. thanks

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  • carol duran Mar 04, 2009

    We went to Advance Auto (the store) and they told us we need to change it.They put the machine to diagnose the car and it came up with that problem. We want to fix it ourselves instead of taking it to a mechanic.

  • christymayna Apr 04, 2009

    Check engine light came on. Displays code P0171. I need to find where the mass air sensor is located to clean it.

  • rickm_stone Apr 05, 2009

    Need to clean mass air sensor

  • flyboy4342 May 11, 2010

    Could you tell us who told you that you needed to replace it?

    A mass airflow sensor can commonly just be cleaned and work properly.



    Joel

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  • Lexus Master
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How do I change a mass air sensor? - 82032169

Posted on May 21, 2009

  • Mike Vincent
    Mike Vincent May 21, 2009

    you can clea them sometimes it will correct the problem and sometime you have to replace it.

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1993 Mitsubishi 3000gt when mass air flow sensor is plugged in car wont rev past 2500 rpm car was bought with it unplugged. Replaced the mass air flow sensor an still does it. When its unplugged it runs...


The computer only knows the voltage across what it thinks is the MAS. A bad wiring connector and a bad MAS is all the same to the computer. I would change the harness to the MAS before I spent any time or money on any other problem solving.

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Everyone tells me that my mass airflow sensor is on my snorkel between filrter and intake, however theres only the air temp sensor on it. Does anyone know where it is.


LOOK THE PART UP ON THE INTER NET GET PICTURE OF PART SO YOU KNOW WHAT TO LOOK FOR . WITH OUT KNOWING ALL THE INFO ON YOUR CAR HARD TO TELL MUCH .BUT KEEP IN MIND NOT ALL CARS USE A MAS AIR FLOW SENSOR AND TO LOOK YOURS UP NOT FINDING THAT IT HAS ONE?????

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PO103 and 116 code on a 1997 jetta 2.0


P0103 - Mass or volume air flow circuit high input.

Symptoms: Engine stalls, running rough, excessive fuel consumption, excessive smoke from the tail pipe, check engine light on.

Possible Causes: Dirty mass air flow sensor, dirty mass air filter, mass air flow sensor harness is open or shorted, mass air flow sensor electrical circuit poor connection, intake air leaks, faulty mass air flow sensor.

P0116 - Engine coolant temperature circuit range/performance.

Symptoms: Check engine light on.

Possible Causes: Low engine coolant level, ECT sensor harness open or shorted, ECT electrical circuit poor connection, faulty engine coolant temperature sensor (ECT), faulty engine coolant thermostat.

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I'm looking for the IAT sensor plug in my 2002 Toyota Land Cruiser. Does anyone know where it's located?


hi,


The Intake Air Temperature (IAT) Sensor is usually incorporated into the Mass Air Flow (MAF) sensor
u can see it on the following picture.ajin_g_3.gif
ok

Jan 05, 2011 | 2002 Toyota Land Cruiser

1 Answer

2002 Kia Sedona- Mass Air Flow Sensor problems


i had the same problem my car keep seting the code for the mass air flow sensor. i put on 3 of the. and it was not the mass air flow sensor. i had a bad set of plug wires that was making the car set a mass air flow sensor code. my car fine now after a year. make you sure you use kia plugs. if you need anymore help let me know.

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1 Answer

2003 Land Cruiser IAT & Mass Air Sensors!!!


Notes Mass Air Flow (MAF) Meter 104389498I hope this pic helps if you look on the intake tube {black pipe} Closest to the air box which holds the air filter you will see a connector to a little box which mounts to the tube thats your Mass Air Flow Sensor you should be able to un plug the connector and take out the little scew and just pull the sensor out and that should be your Mass air flow and intake air temp. sensor

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MAF Sensor 2004 Dodge Stratus


If your car has a MAF (Mass Air Flow) sensor, it would be located in the air delivery tube that runs from the air filter box to the throttle plate assembly on the intake manifold. It will have a wiring connector going to it, also. The MAF does exactly what it is called: It "senses" the volume, or "mass" of the air-flow; thusly it needs to be in the intake air tube. If you do NOT have such a device in the air-tube, you have a MAP sensor, (Manifold Absolute Pressure); this is another way of measuring the same air volume, albeit older technology. You will commonly find this device on the firewall, with a vacuum line running to the intake manifold.

I hope that this sheds some light on your question.

Thanks for choosing FixYa for advice!

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1 Answer

Need to replace the mass air flow sensor


Does anyone know where the mass air flow sensor is located in a 2001 toyota highlander? It needs to be replaced and im having some difficulty.

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IAT MAP MAF pics & locations


Go to alldatadiy.com and buy the car you are working on and you will have access for a year. This should have mechanical illistrations of what you are looking for. By the way that car does not have a MAP sensor.It uses a mass air flow sensor. Hope this helps...Dan

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