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check engine code P0101

Discussion in '2nd Gen. Tacomas (2005-2015)' started by YumaTRD, Jan 31, 2010.

  1. Jan 31, 2010 at 3:11 PM
    #1
    YumaTRD

    YumaTRD [OP] 22R...Legends never die

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    El Cajon, CA hometown Yuma, AZ
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    P0101 Mass or Volume Air Flow Circuit Range/Performance Problem

    I have a volant cold air intake installed and drove the truck for about three months with no codes. out of no where I get the check engine code P0101. My first thought was that the oiled air fillter probably got the MAF senor dirty so I removed and cleaned the MAF senor with special MAF senor safe cleaner.
    I had the code reseted.
    Within the following month the code apeared again and then it cleared itself after a hunderd miles.
    I decided to upgrade to a dry filter from URD.
    I reset the computer again and the code still apears.

    Do I need to replace the MAF senor or would installing the URD Calibrator fix the problem?

    Im thinking that the MAF is misreading the actual air flow and that the calibrator could fix that.

    Any other ideas?
    Thanks in advance
     
  2. Jan 31, 2010 at 3:36 PM
    #2
    kevhogaz

    kevhogaz Low Speed, High Drag

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    I just looked up your code. It says it's either a vacuum leak in the intake system, a leak in the PCV system, or a bad MAF.

    My guess is it's the first one. I'd see if the manufacturer has any info on this problem, or get a hold of the URD guys and see if they have a fix for it.
     
  3. Jan 31, 2010 at 3:45 PM
    #3
    YumaTRD

    YumaTRD [OP] 22R...Legends never die

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    I'll check the hoses that conect to the intake and make sure theres no leaks or tears.
    hope its something simple like that
     
  4. Jan 31, 2010 at 6:40 PM
    #4
    YumaTRD

    YumaTRD [OP] 22R...Legends never die

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    Locked, Flat bed, 22R 5 speed, BFG KO's
    all the hose connections were tight and sealed.
    I'll trade the MAF with a friend and ill see if the problem occurs again.
     
  5. Mar 17, 2010 at 1:32 PM
    #5
    YumaTRD

    YumaTRD [OP] 22R...Legends never die

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    Locked, Flat bed, 22R 5 speed, BFG KO's
    I installed a different MAF sensor on my truck and got the same code again. that should rule out the sensor. all the vacuum hoses are nice and tight. I don't know what to do to fix the problem
     
  6. Jun 24, 2011 at 8:11 AM
    #6
    johnh7

    johnh7 life. It goes on.

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    i know its been a while.. any fix on this?? i have gone throught 3 MAFS, replaced vacume hoses... but still get that stupid p0101 code...
     
  7. Apr 17, 2013 at 12:48 PM
    #7
    masterarcher

    masterarcher Member

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    TRD Exhaust K&N Cold Air Intake Blistien Shocks
    I had the same code, i just recently just cleaned my sensor, reset my light and after 50 miles, it hasnt come on so far. I will update again if it comes on. The sensor just sits on top of the air intake, and is only held on by 2 screws. Just unhook the wire, unscrew it and pull out the sensor. The sensing bulb on mine was pretty obviously dirty, so i just wiped it off an put it back in. Hope this helps.
     
  8. Dec 4, 2014 at 5:39 PM
    #8
    shawnphoto

    shawnphoto Well-Known Member

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    Check your EFI #2 fuse!
     
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