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1794 engine / computer adjustments

Discussion in '3rd Gen Tundras (2014+)' started by cnoswadj, Nov 10, 2018 at 10:03 AM.

  1. Nov 10, 2018 at 10:03 AM
    #1
    cnoswadj

    cnoswadj [OP] New Member

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    Toyota cat-back dual exhaust, TRD cold intake and anti-sway bars
    I have a new 2018 1794 edition Tundra that I had the dealer modify by adding a cat-back dual exhaust, a TRD cold air intake system and anti-sway bars. My seems to run and handle better so I am happy with the mods, but gas mileage has suffer somewhat. Is there anything I can do to improve my mpg?
     
  2. Nov 10, 2018 at 10:51 AM
    #2
    15whtrd

    15whtrd I tried being reasonable, but I didn't like it.

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    TRD Pro suspension, 20% ceramic tinted windows, charcoal filter delete, aFe drop in pro s dry air filter, TRD airflow accelerator, TRD oil fill cap, TRD 18 psi radiator cap, BDX Bullydog tuner, Weathertech floor mats, rear seat fold down mod, Tyger soft tonneau cover, Linex with uv protection, TRD swaybar, TRD center caps, TRD Pro grille insert, Real truck tailgate seal, Pop-n-lock tailgate actuator, rear diff breather relocate.
    None of that should’ve affected your gas mileage. I think you just need to keep your foot out of it lol. Maybe the truck just needs to learn it has a little more flow in the intake. Did you try resetting the ECM? Disconnect the battery for about three minutes. Did you try resetting the ECM? Disconnect the battery for a few minutes. I like to hit the brake or the horn a few times to make sure all the power is drained from the system.
     
    Last edited: Nov 10, 2018 at 11:07 AM
    Inquiringone likes this.
  3. Nov 10, 2018 at 10:58 AM
    #3
    cnoswadj

    cnoswadj [OP] New Member

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    Toyota cat-back dual exhaust, TRD cold intake and anti-sway bars
    Good tip, should have thought of that. I’ll give it a try.
    BTW, the new sound and handling probably has created a heavier right foot... ;)
     
    Inquiringone, Grey Wolf and 15whtrd like this.
  4. Nov 10, 2018 at 11:08 AM
    #4
    15whtrd

    15whtrd I tried being reasonable, but I didn't like it.

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    Haha no doubt!
     
  5. Nov 10, 2018 at 8:28 PM
    #5
    JTX Tundra

    JTX Tundra New Member

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    I average 12 to 15 mpg per tank. If I make an effort I can get over 18 mpg. The best way to improve gas mileage is to change your driving style. Light on the throttle, minimize use of brakes, keep it under 65, and stay out of the left lane. But that's no fun.
     
    ColoradoTJ and TundraLuv like this.
  6. Nov 11, 2018 at 4:38 AM
    #6
    netranger6

    netranger6 New Member

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    None. Keeping this one stock.
    You loss low end and back pressure with the exhaust. Surely you felt that. I had Trd duals for 4 years in my 14. Didnt think anything of it. Until I drove a stock 2018. It was significant. My 18 CM at 70 to Houdton and back was just at 18.7 average. I'll take it.
     
    14burrito likes this.
  7. Nov 11, 2018 at 4:50 AM
    #7
    Max Power

    Max Power Besotted Member

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    I'm looking to get a rear sway bar and the TRD exhaust installed this coming spring, and this is exactly what I'm expecting to happen to me.
     
  8. Nov 11, 2018 at 6:09 AM
    #8
    LT75

    LT75 New Member

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    The TRD intake is supposed to work with the ECU the way it is. At least that’s what the product description says.
     
    Inquiringone likes this.
  9. Nov 11, 2018 at 6:21 AM
    #9
    ninjajay

    ninjajay Posting from the toilet

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    Fix the nut between the seat and steering wheel
     
    Navi, landphil and TRD-tv like this.
  10. Nov 11, 2018 at 7:38 AM
    #10
    TRD-tv

    TRD-tv Menace2Ohio

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    Hahahaha ull have to use that
     
  11. Nov 11, 2018 at 7:45 AM
    #11
    Stig

    Stig New Member

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    Another gas mileage thread...
     
    Inquiringone likes this.
  12. Nov 12, 2018 at 6:22 PM
    #12
    cnoswadj

    cnoswadj [OP] New Member

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    Toyota cat-back dual exhaust, TRD cold intake and anti-sway bars
    ...thx for the help...I think I’ve had enough.
     
    15whtrd, Inquiringone and TRD-tv like this.
  13. Nov 12, 2018 at 6:27 PM
    #13
    14burrito

    14burrito New Member

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    This.
    And the intake didnt Help either. Most "performance" intakes are tuned for HP gains: they use a larger diameter tube = tuned more for high end power.
     
    netranger6 likes this.

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