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TorquePro & difference in speed reported

Discussion in 'OBDII Android App' started by TheLandYacht, Dec 2, 2020.

  1. TheLandYacht

    TheLandYacht Member

    Joined:
    Oct 1, 2020
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    Location:
    Kingsland, Texas
    Vehicle:
    2010 Prius
    Model:
    Three
    New to the Prius world & got a generic OBDII reader & bought TorquePro.

    I note that at all speeds, the speed reported by TP is 2mph lower than that shown on the dash. Which is accurate?

    I remember, about 15 years ago, when I owned a Dodge Sprinter (actually made by Mercedes at a plant in Duseldorf), that the speed reported by the dash was ALSO higher than actual speed, although I found that out when I asked a cop what his radar was showing him after I passed him.

    Is this an industry-wide sort of thing?
     
    #1 TheLandYacht, Dec 2, 2020
  2. Mendel Leisk

    Mendel Leisk EGR Fanatic

    Joined:
    Oct 17, 2010
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    Location:
    Greater Vancouver, British Columbia, Canada
    Vehicle:
    2010 Prius
    Model:
    Touring
    I think it's legislation; they're trying to get people to slow down, want to ensure the speedo reads slightly high.
     
    #2 Mendel Leisk, Dec 2, 2020
    TheLandYacht likes this.
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