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Error codes P141 and P146

Discussion in '1st Gen Tundras (2000-2006)' started by tomundra, Apr 24, 2020.

  1. Apr 24, 2020 at 3:00 PM
    #1
    tomundra

    #1
    tomundra [OP] New Member

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    Watkinsville, GA
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    I'm getting the error codes P141 and P146 consistently and more frequently (weeks rather than months apart). What is the fix?
     
    tomundra, Apr 24, 2020
    #1
  2. Apr 25, 2020 at 7:20 AM
    #2
    revtune

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    revtune New Member

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    Dane
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    2006 Tundra: Stock air intake 3 inch catback Magnaflow 13742 2.5 inch front lift 1.5 inch rear blocks 2014 sr5 4Runner wheels (17x7) 1.5 inch hub centric wheel spacers p285/70/17 Nitto Terra Grappler G2 Weathertech floor liners
    P0141 & P0146 = replace all o2 sensors (denso)

    current mileage on your truck?
     
    revtune, Apr 25, 2020
    #2
    myt1 likes this.
  3. Apr 25, 2020 at 7:28 AM
    #3
    tomundra

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    tomundra [OP] New Member

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    172,054
     
    tomundra, Apr 25, 2020
    #3
  4. Apr 25, 2020 at 7:36 AM
    #4
    revtune

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    revtune New Member

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    2006 Tundra: Stock air intake 3 inch catback Magnaflow 13742 2.5 inch front lift 1.5 inch rear blocks 2014 sr5 4Runner wheels (17x7) 1.5 inch hub centric wheel spacers p285/70/17 Nitto Terra Grappler G2 Weathertech floor liners
    To your knowledge, original sensors?
     
    revtune, Apr 25, 2020
    #4
  5. Apr 25, 2020 at 7:38 AM
    #5
    revtune

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    revtune New Member

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    2006 Tundra: Stock air intake 3 inch catback Magnaflow 13742 2.5 inch front lift 1.5 inch rear blocks 2014 sr5 4Runner wheels (17x7) 1.5 inch hub centric wheel spacers p285/70/17 Nitto Terra Grappler G2 Weathertech floor liners
    revtune, Apr 25, 2020
    #5
  6. Apr 25, 2020 at 7:50 AM
    #6
    revtune

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    revtune New Member

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    2006 Tundra: Stock air intake 3 inch catback Magnaflow 13742 2.5 inch front lift 1.5 inch rear blocks 2014 sr5 4Runner wheels (17x7) 1.5 inch hub centric wheel spacers p285/70/17 Nitto Terra Grappler G2 Weathertech floor liners
    revtune, Apr 25, 2020
    #6
  7. Apr 25, 2020 at 9:51 AM
    #7
    myt1

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    myt1 New Member

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    OME Lift, 275/70R 18
    I'm approaching the same miles as the OP.

    Should I just change all my sensors on a preventive basis?

    It doesn't look that hard.
     
    myt1, Apr 25, 2020
    #7
  8. Apr 25, 2020 at 9:59 AM
    #8
    revtune

    #8
    revtune New Member

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    2006 Tundra: Stock air intake 3 inch catback Magnaflow 13742 2.5 inch front lift 1.5 inch rear blocks 2014 sr5 4Runner wheels (17x7) 1.5 inch hub centric wheel spacers p285/70/17 Nitto Terra Grappler G2 Weathertech floor liners
    4x4 or 4x2? Parts listed below.

    Upstream:

    F37C1742-78ED-45FC-96F1-C560947B45DC.jpg

    Down Stream 4x4:

    C1771DCA-8176-4F55-A50A-A1EB825135CA.jpg

    Down stream 4x2:

    124EBF21-BF71-4868-BDFA-8F5E13CD962A.jpg
     
    revtune, Apr 25, 2020
    #8
  9. Apr 25, 2020 at 12:34 PM
    #9
    revtune

    #9
    revtune New Member

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    2006 Tundra: Stock air intake 3 inch catback Magnaflow 13742 2.5 inch front lift 1.5 inch rear blocks 2014 sr5 4Runner wheels (17x7) 1.5 inch hub centric wheel spacers p285/70/17 Nitto Terra Grappler G2 Weathertech floor liners
    Negative. Unless you are having run problems or error codes related to the o2 sensors/air fuel sensors you should be good to go until you actually get a code.
     
    revtune, Apr 25, 2020
    #9
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