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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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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Symptoms of faulty air flow sensor


  • How to Detect and Clean a Faulty Mass Airflow Sensor ... www.carsdirect.com > Car Repair > Engine Repair 2012-02-24 · Symptoms of a Faulty Mass Air Flow Sensor ... Here are some of the most common symptoms of a faulty mass airflow sensor: ... CARSDIRECT IS AN ...
  • Mass Airflow Sensor: An Easy Fix for Big Problems from a ... www.airtexproducts.com/news-blog-mass-airflow-sensor-an-easy-fix... news,blog,mass,airflow,sensor,an,easy,fix,for,big,problems,from,a,little,instrument. ... Mass Airflow Sensor: ... What Are the Symptoms of a Faulty Mass Air Flow Sensor?
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  • See Bad Mass Airflow Sensor Symptoms on YouFixCars.com www.youfixcars.com/mass-airflow-sensor.html Video embedded · Mass airflow sensor problems can turn on the check engine light. They can also cause a variety of other symptoms before the ... How to clean mass air flow sensor ...
  • How to ' Tell If You Really Need a Mass Air Flow Sensor ... www.youtube.com/watch?v=aDlHCjgYf8s
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    Jul 09, 2016 | Cars & Trucks

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    Spare part 12(po100)


    P0100 NISSAN - Mass Air Flow Sensor Circuit Range/Performance Error

    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
    Tech notes Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or mass air flow sensor cleaner. Reset code and drive vehicle. If the code comes back, it may be necessary to replaced the mass air flow sensor.

    Sep 25, 2012 | 1997 Nissan Pickup

    1 Answer

    ISUZU TROOPER 3.2 V6 CODE P0101


    P0101 ISUZU - Mass Air Flow Circuit Performancexicon.jpghttp://engine-codes.com/p0101_isuzu.htmlForum CodePossible 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
    Tech notes Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or mass air flow sensor cleaner. Reset code and drive vehicle. If the code comes back, it may be necessary to replaced the mass air flow sensor

    Jul 04, 2012 | 2001 Isuzu Trooper

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    MAAS AIR SENSOR


    A mass air flow sensor is used to find out the mass of air entering a fuel-injected engine. The air mass information is necessary for the engine control unit (ECU) to balance and deliver the correct fuel mass to the engine. Air changes its density as it expands and contracts with temperature and pressure. In automotive applications, air density varies with the ambient temperature and altitude, and this is an ideal application for a mass sensor. (See stoichiometry and ideal gas law.)
    There are two common types of mass airflow sensors in usage on gasoline engines. These are the vane meter and the hot wire. Neither design employs technology that measures air mass directly. However, with an additional sensor or two, the engine's air mass flow rate can be accurately determined.
    Both approaches are used almost exclusively on electronic fuel injection (EFI) engines. Both sensor designs output a 0 - 5.0 volt or a PWM signal that is proportional to the air mass flow rate, and both sensors have an intake air temperature (IAT) sensor incorporated into their housings.

    Nov 09, 2009 | 1999 Oldsmobile Silhouette

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    Trouble code p0102 mass air flow sensor, could there be another cause for this code other than the sensor itself


    It could be a dirty air filter a, spark plug, spark plug wires.
    a leak in the air intake system or the mass air flow sensor

    Aug 30, 2009 | 2000 Buick LeSabre

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    Runs rough when cruising at 35-40 mph


    try pulling off the air breather hose and look inside at the mass air flow sensor,it looks like a wire with a diode hooked to it incase you didnt know,see if there is any fuzz on it,sometimes the air filter will lose small pieces and the mass air flow sensor catches it.If that doesnt work then you may have a fuel problem,weak pressure,causing the mass air flow sensor to read too much air so it tricks the computer to adjust the issue.

    May 20, 2009 | 1998 Ford Expedition

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    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.

    Apr 16, 2009 | 2002 Kia Sedona

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    Need to know what MAF means.


    MAF stands for mass air flow sensor, this is used to tell the computer how much air is entering the engine, check the air filter,and clean the sensor with CRC mass air flow cleaner, with engine off. hope this helps,let me know Ray

    Apr 13, 2009 | Nissan Maxima Cars & Trucks

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    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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