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2009 (2nd gen) MAF cleaning

Discussion in '2nd Gen. Tacomas (2005-2015)' started by BasicTaco, Jan 27, 2018.

  1. Jan 27, 2018 at 11:14 AM
    #1
    BasicTaco

    BasicTaco [OP] Member

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    I'm new, and not sure if where this goes, but I wanted to add it for some DIY guys that are just getting started. I couldn't find anything about the MAF on second gens and wanted to clean mine. It's super easy and I noticed a smoother idle immediately! Here's the pics for removal:IMAG1943.jpg -first remove the engine cover

    IMAG1944.jpg -undo the negative terminal on the battery, and unclog the MAF sensor. It's just behind the left engine cover retainer stud. Then remove the two Phillips head screws that retain the MAF sensor.

    IMAG1945.jpg
    -gently pull the sensor from its place and pug the hole with a rag to prevent debris from entering. Spray the sensor plate, and the wire harness connections on both ends with MAF cleaner.

    The plate may require multiple applications to fully clean buildup. After satisfactory cleaning, allow to dry and replace in inverse order of removal. Don't forget to hook the battery back up or it won't start lol. Good luck!
     
    Rick's 2012 and MeowListenHere like this.
  2. Jan 27, 2018 at 1:58 PM
    #2
    fixer5000

    fixer5000 the logical one

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    you dont have to unhook the battery
     
  3. Jan 27, 2018 at 2:28 PM
    #3
    Jeffs68

    Jeffs68 Well-Known Member

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    True, you don't, but it doesn't hurt to reset the fuel adaptations so the computer can relearn with the clean MAF sensor.
    Takes longer if you don't disconnect the battery.
     
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  4. Jan 27, 2018 at 2:36 PM
    #4
    BasicTaco

    BasicTaco [OP] Member

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    That was my thinking. Plus with any electrical part, I generally use disconnecting the battery as a safety precaution.
     
  5. Jan 27, 2018 at 2:52 PM
    #5
    Tcomaboy

    Tcomaboy Well-Known Member

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    What did you use to clean it?
     
  6. Jan 27, 2018 at 3:30 PM
    #6
    BasicTaco

    BasicTaco [OP] Member

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    I cleaned it with the generic MAF Sensor Cleaner from autozone.
     
  7. Jan 27, 2018 at 3:44 PM
    #7
    bobsuruncle

    bobsuruncle I void warranties

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    ARB bull bumper, warn 9000 with synthetic rope, icon CO's & 700lb coils, road armor rear bumper, dakars + Archive Garage shackle flip.
    Not trying to hate on your write up, just wanted to add, there's also elements inside the housing that can be cleaned also. DO NOT STICK ANYTHING SOLID IN THERE. The wires are very delicate and can be damaged easily if not careful and you will need a to purchase a new one if you damage them. I used the sensor safe cleaner as you mentioned and a q-tip in a gentle twisting motion. Clean until you're q-tip doesn't discolor. You will probably need to use more than one q-tip.

    maf_3_cleaned.jpg
     
  8. Feb 12, 2019 at 1:31 AM
    #8
    MeowListenHere

    MeowListenHere Well-Known Member

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    Thank you basictaco. I threw a P0171 code the other day and could not find my MAF sensor. I thought it would’ve been near the air filter like most vehicles.
     
  9. Feb 12, 2019 at 3:12 AM
    #9
    Blockhead

    Blockhead Well-Known Member

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    Cleaning the MAF sensor is an annual springtime event for me...its good to clean the throttle body at the same time.
     
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  10. Feb 12, 2019 at 3:24 AM
    #10
    MeowListenHere

    MeowListenHere Well-Known Member

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    Thanks I’ll look into doing that as well. I’m no mechanic obviously but I try to take care of as much as I can.
     
  11. Feb 12, 2019 at 5:08 AM
    #11
    TheDevilYouLove

    TheDevilYouLove Dreams are free. The hustle is gonna cost you.

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  12. Feb 12, 2019 at 6:47 PM
    #12
    MeowListenHere

    MeowListenHere Well-Known Member

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    I’ll have to buy a torque wrench. Any recommendations on one that won’t break the bank?
     
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  13. Feb 12, 2019 at 7:28 PM
    #13
    b_r_o

    b_r_o fresh cakes

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    You dont need a torque wrench for those little throttle body bolts, just dont murder em when you put it back on. Picture the rubber gasket getting squeezed, a little further past that and youre good
     
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  14. Feb 13, 2019 at 6:45 AM
    #14
    eherlihy

    eherlihy Well-Known Member

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    Thanks for resurrecting this thread. It reminded me to clean my MAF and TB today, and both were dirty, and probably why my MPG had dropped to ~15.

    You do not need a torque wrench for this. You only need a 10mm and a #1 Phillips.
     
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  15. Feb 13, 2019 at 11:14 AM
    #15
    MeowListenHere

    MeowListenHere Well-Known Member

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    So do you just spray the cleaner into the TB while it’s bolted on or do you remove it?
     
  16. Feb 13, 2019 at 11:21 AM
    #16
    eherlihy

    eherlihy Well-Known Member

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    Don't remove it, just spray away! Open the butterfly valve and spray on both sides.
     
  17. Feb 13, 2019 at 11:26 AM
    #17
    MeowListenHere

    MeowListenHere Well-Known Member

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    Well alright I’ll give it a try. Something just bugged me about spraying that into the engine but I guess it’s not that big of a deal. I tell you what joining this website was a great idea. I actually need to change my U joints but decided against doing it myself since I don’t want to worry about losing any tranny fluid so I dropped it off.
     
  18. Feb 13, 2019 at 11:28 AM
    #18
    Bishop84

    Bishop84 Well-Known Member

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    Don't disconnect the battery unless you intend to clean the throttle. It will idle low until it relearns.
     
  19. Feb 13, 2019 at 3:12 PM
    #19
    TACOMA2NDGEN

    TACOMA2NDGEN Well-Known Member

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    Just to add make sure you use a TB cleaner and MAF cleaner don’t use brake cleaner. CRC makes a great product for both applications
     

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