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Gaz consumption on my 4.7

Discussion in '2nd Gen Tundras (2007-2013)' started by Blackbird9424, Sep 2, 2025 at 7:24 AM.

  1. Sep 2, 2025 at 7:24 AM
    #1
    Blackbird9424

    #1
    Blackbird9424 [OP] New Member

    Joined:
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    Female
    Vehicle:
    2008 tundra 4.7 8 ft bed
    Hi!
    I know, the 4.7 is limit to tow a RV trailer, but I was wondering if the P2447 on the truck could be the cause of the 9.4mpg (25l/100km) consumption of my truck.

    I tow a 28 ft 7700lbs rv trailer with torsion bars. And I respect all weight limits on the truck.

    If the code is not the issue, is there a way to lower it's consumption a bit? Thanks.
     
    Blackbird9424, Sep 2, 2025 at 7:24 AM
    #1
  2. Sep 2, 2025 at 7:29 AM
    #2
    KNABORES

    #2
    KNABORES Sarcasm incoming

    Joined:
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    Vehicle:
    2000 Limited TRD AC 4X4 Thunder Grey 278k miles. *SOLD* 2019 Limited TRD CM 4x4
    Bilstein 5100's on the forbidden notch Husky HD rear leafs 16x8 Eagle Alloy 187's with 285/75/16 MagnaFlow 3" flow through Pioneer touchscreen with backup camera Full interior and dash LED conversion Trailer brake controller with 7 pin Bedliner coat bumpers & trim ARE Mpulse topper - Rhino Vortex rack
    Are you saying you get 9.4mpg while towing? Thats normal. Bad news is your code is for SAIS. Not cheap or easy.
     
    KNABORES, Sep 2, 2025 at 7:29 AM
    #2
    joseph_womack and D4x4TRD like this.
  3. Sep 3, 2025 at 11:53 AM
    #3
    grave

    #3
    grave New Member

    Joined:
    Apr 30, 2021
    Member:
    #62509
    Messages:
    601
    SD CA
    Vehicle:
    2007 4.7 SR5 4X4
    psh, $450 hewitt bypass kit and be done with it
     
    grave, Sep 3, 2025 at 11:53 AM
    #3
    joseph_womack likes this.
  4. Sep 3, 2025 at 11:56 AM
    #4
    KNABORES

    #4
    KNABORES Sarcasm incoming

    Joined:
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    Gender:
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    Arkansas
    Vehicle:
    2000 Limited TRD AC 4X4 Thunder Grey 278k miles. *SOLD* 2019 Limited TRD CM 4x4
    Bilstein 5100's on the forbidden notch Husky HD rear leafs 16x8 Eagle Alloy 187's with 285/75/16 MagnaFlow 3" flow through Pioneer touchscreen with backup camera Full interior and dash LED conversion Trailer brake controller with 7 pin Bedliner coat bumpers & trim ARE Mpulse topper - Rhino Vortex rack
    debatable
     
    KNABORES, Sep 3, 2025 at 11:56 AM
    #4
  5. Sep 5, 2025 at 12:55 PM
    #5
    grave

    #5
    grave New Member

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    SD CA
    Vehicle:
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    tell me more
     
    grave, Sep 5, 2025 at 12:55 PM
    #5
  6. Sep 5, 2025 at 2:08 PM
    #6
    KNABORES

    #6
    KNABORES Sarcasm incoming

    Joined:
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    Member:
    #40572
    Messages:
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    Gender:
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    Arkansas
    Vehicle:
    2000 Limited TRD AC 4X4 Thunder Grey 278k miles. *SOLD* 2019 Limited TRD CM 4x4
    Bilstein 5100's on the forbidden notch Husky HD rear leafs 16x8 Eagle Alloy 187's with 285/75/16 MagnaFlow 3" flow through Pioneer touchscreen with backup camera Full interior and dash LED conversion Trailer brake controller with 7 pin Bedliner coat bumpers & trim ARE Mpulse topper - Rhino Vortex rack
    The kits can also fail
     
    KNABORES, Sep 5, 2025 at 2:08 PM
    #6
  7. Sep 5, 2025 at 2:19 PM
    #7
    joseph_womack

    #7
    joseph_womack @ 4x4bound

    Joined:
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    Joe
    Louisiana
    Vehicle:
    2007 RCLB, 4WD, 4.7L V8
    3/1 Lift, 35s, Front Bumper, etc etc
    And the kit only works for 2 out of 4 potential codes the SAIP can throw, I don’t know them off the top of my head
     
    joseph_womack, Sep 5, 2025 at 2:19 PM
    #7
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