1. Welcome to Tundras.com!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tundra discussion topics
    • Transfer over your build thread from a different forum to this one
    • Communicate privately with other Tundra owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Need Help have questions

Discussion in '2.5 Gen Tundras (2014-2021)' started by Vtwelder, Apr 20, 2025.

  1. Apr 20, 2025 at 11:02 AM
    #1
    Vtwelder

    Vtwelder [OP] New Member

    Joined:
    Apr 20, 2025
    Member:
    #133756
    Messages:
    4
    Gender:
    Male
    First Name:
    John
    Vehicle:
    2020 Tundra Limited Crewcab
    S&B cold air intake Jet performance mass air sensor AFE Silver Bullet throttle body spacer
    So hey people I’m looking for any kind of help I can get! ThankYou in advance!
    I bought and installed the following last Friday.
    S&B cold air intake
    Jet performance mass or flow sensor
    AFE silver bullet throttle body spacer.
    I disconnected the negative terminal prior to installing these parts along with disconnecting the throttle body and the maf to replace the the OEM.
    Then plugged everything back in and re attached the the negative to the battery.
    When initially started my truck it stalled immediately. Then restarted n had all kinds of lights come on one for the pre-collision one for stability control one for throttle body and or transmission. Any ideas WTH is going on n how to clear these. A friend has tried clearing them via computer which said low current to have the come right back on. I then ran the truck for a couple hours thinking they may turn offf n I did shut the vehicle off and restart it n still all kinds of lights any help would be awesome ty
     
    Last edited: Apr 20, 2025
  2. Apr 20, 2025 at 12:31 PM
    #2
    TILLY

    TILLY Gently Used Member

    Joined:
    Sep 7, 2019
    Member:
    #35797
    Messages:
    4,692
    Gender:
    Male
    Massachusetts
    Vehicle:
    2019 MGM TRD Sport D/C
    Tundra's always stall the first time after disconnecting the battery, that's just what they do for some reason. I would check all the connections you unplugged, MAF etc., and if that's OK, I would re-install the original MAF and remove the spacer you added. Remove the neg terminal for like 10 min. re-install and see if anything changes. Good luck.
     
  3. Apr 20, 2025 at 12:33 PM
    #3
    Vtwelder

    Vtwelder [OP] New Member

    Joined:
    Apr 20, 2025
    Member:
    #133756
    Messages:
    4
    Gender:
    Male
    First Name:
    John
    Vehicle:
    2020 Tundra Limited Crewcab
    S&B cold air intake Jet performance mass air sensor AFE Silver Bullet throttle body spacer
  4. Apr 20, 2025 at 12:35 PM
    #4
    1lowlife

    1lowlife Toxic prick and pavement princess..

    Joined:
    May 4, 2016
    Member:
    #3296
    Messages:
    10,657
    First Name:
    DADA
    THE GREAT STATE OF TEXAS
    Vehicle:
    2014 MGM DC SR5
    Welcome to the forum.

    Is it the original battery?
    If so, it's time for a new one..

    Your truck already had a cold air intake..:rolleyes:
     
  5. Apr 20, 2025 at 2:23 PM
    #5
    BrandonL812

    BrandonL812 New Member

    Joined:
    Aug 5, 2018
    Member:
    #17783
    Messages:
    1,460
    Gender:
    Male
    First Name:
    Brandon
    Vehicle:
    2021 Tundra Platinum
    DD ss3 max led fogs. interior and exterior leds swapTRD Shift knob.
    Not sure why you would need that jet maf. It would not benefit anything in stock configuration. I would put the factory maf back. The ecu may not like the reading that jet maf is putting out.
     
  6. Apr 20, 2025 at 2:40 PM
    #6
    Danman34

    Danman34 New Member

    Joined:
    Sep 19, 2018
    Member:
    #19579
    Messages:
    2,639
    Gender:
    Male
    First Name:
    Danny
    Vehicle:
    2018 White Tundra TRD Sport
    Get rid of the throttle body spacer and put the oem MAF back.
     
  7. Apr 20, 2025 at 4:10 PM
    #7
    Vtwelder

    Vtwelder [OP] New Member

    Joined:
    Apr 20, 2025
    Member:
    #133756
    Messages:
    4
    Gender:
    Male
    First Name:
    John
    Vehicle:
    2020 Tundra Limited Crewcab
    S&B cold air intake Jet performance mass air sensor AFE Silver Bullet throttle body spacer
    I want to THANK EVERYONE YOU PEOPLE TRULY ARE THE NICEST AND HELPFUL people I’ve reached out too for help/advice! So I Want to share an update with you all!

    I reinstalled the stock maf sensor. The reason I had originally installed the jet maf sensor as they claim it helps with performance fuel mileage! For the price you would think so. Anyhow I disconnected both battery terminals the positive and negative terminals. I then reinstalled the stock maf sensor per the directions of the S&B cold air intake. I also watched a few videos and read a couple of different responses to a very similar problem. So per the advice of someone I pumped the brake pedal three/four times, I also hit the horn same amount. The reason behind this is apparently in the Tundra 2018-2021 they added a bunch of stuff and changed somethings with the computer therefore it retaines energy/volts yet being a very low amount it does. So by pressing the brake pedal n honking the horn it doesn’t but by hitting the horn it dissipates the energy/volts. Then reconnect the battery terminals positive first the ground. I then cycled into the run position with a 15/30 second pause in the run position 4 different times. This lets your fuel pump run without trying to start the vehicle. Reason is to build fuel pressure back into the system. After that I started my truck and had zero lights or codes. Fingers crossed hopefully all will be okay! Thank you all once again for your help
     
    Last edited: Apr 20, 2025
    T-Rex266 likes this.

Products Discussed in

To Top