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

Hypertech inline speedometer calibrator

Discussion in '2.5 Gen Tundras (2014-2021)' started by PowerUp, May 29, 2020.

  1. May 29, 2020 at 5:56 PM
    #1
    PowerUp

    PowerUp [OP] New Member

    Joined:
    Apr 6, 2020
    Member:
    #44702
    Messages:
    4
    Gender:
    Male
    2" Lift and 295/65/r20
    Just installed my Rough Country in Speedometer made by Hypertech. Installed per instructions but speed was way off. I had not read post that said use tire height instead of tire size. I had left the cable plugged in to control box to be able to re-calibrate. I recalibrate and was closer but thought I could get closer. On doing so the third time it went back to stock setting. Since then have tried numerous times to correct. Program says that the ratio has been saved successfully. And if you look at it shows the new ratio. However after testing it is still stock setting.

    Any help would be helpful.

    2020 Tundra Platinum
     

Products Discussed in

To Top