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

P2128 Throttle/Pedal Position Sensor/Switch E Circuit High Imput

Discussion in 'Electrical' started by HulkSmurf14, Jan 9, 2025.

  1. Jan 9, 2025 at 6:17 AM
    #1
    HulkSmurf14

    HulkSmurf14 [OP] ...Weighted Average...

    Joined:
    Aug 9, 2019
    Member:
    #34377
    Messages:
    2,502
    Gender:
    Male
    Vehicle:
    2014 Tundra Limited
    Tastefully enhanced...
    I was driving home last night and waiting at a light and I noticed I didn't have much power, where I needed to push the pedal down further to go anywhere. I then noticed the CEL on the dash and looked it up. Is there a TB/Pedal reset procedure I could do to remedy this CEL? I looked under the hood and the wires all look fine, but I'm hoping it's a simple "fix" to reset either the Throttle Body or the Pedal since it's all electronic these days? Anyone have a suggestion?
     
  2. Jan 9, 2025 at 6:51 AM
    #2
    armyoffoo

    armyoffoo Member

    Joined:
    Jun 4, 2018
    Member:
    #15876
    Messages:
    1,213
    Gender:
    Male
    First Name:
    Bryan
    Cypress, TX
    Vehicle:
    2018 Black TRD Sport CrewMax
    Supercharged with all the trimmings
    HP Tuners has a throttle re-learn under the special functions, might be worth a shot.

    upload_2025-1-9_8-49-41.png
     
    HulkSmurf14[OP] likes this.
  3. Jan 23, 2025 at 7:52 PM
    #3
    HulkSmurf14

    HulkSmurf14 [OP] ...Weighted Average...

    Joined:
    Aug 9, 2019
    Member:
    #34377
    Messages:
    2,502
    Gender:
    Male
    Vehicle:
    2014 Tundra Limited
    Tastefully enhanced...
    Alright, here's an update, I swapped the throttlebody that @snivilous let me try out and even disconnecting battery and doing a tps reset sequence netted no chnge. I then bought a used pedal assembly from a 2018 with 35k miles and threw that in tonight...no change, again :annoyed:

    The next thing to do is remove the APP harness and replace it...ugh! I'm hoping this next attempt is the key. :monocle:
     

Products Discussed in

To Top