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What should i believe???

Discussion in 'Gen 2 Prius Main Forum' started by Clubford00, Jan 16, 2008.

  1. Clubford00

    Clubford00 New Member

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    Today i was messing with the newly installed scanguage II and i set it on mpg and the dash readout and the scanguage readout was way different. the dash said at 50mph flat and level was about 48 the scangauge said 34 WOW what a difference. Anyone else have this happen?
     
    #1 Clubford00, Jan 16, 2008
  2. prim2

    prim2 Junior Member

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    Have you completed the full setup and calibration of your ScanGuage as detailed in the manual? If not, go with your Prius' display.
     
    #2 prim2, Jan 16, 2008
  3. diamondlarry

    diamondlarry EPA MPG #'s killer

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    I would have to ask the same question as prim2. If you haven't properly calibrated the SG2, it may still be set to the default of a 3.0L engine which would give a reading that is way lower than the FCD.
     
    #3 diamondlarry, Jan 16, 2008
  4. Clubford00

    Clubford00 New Member

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    Nope, all done to my cars specs
     
    #4 Clubford00, Jan 16, 2008
  5. Rae Vynn

    Rae Vynn Artist In Residence

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    I would suggest that you use pen and paper, and track all of your gas fillups and your mileage, and do the math.
     
    #5 Rae Vynn, Jan 16, 2008
  6. Bob64

    Bob64 Sapphire of the Blue Sky

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    I'd double-check the engine size again... Theres a chance you forgot to save or the SG "forgot" your settings...

    You wouldn't be displaying the trip mpg data would you?
     
    #6 Bob64, Jan 17, 2008
  7. Clubford00

    Clubford00 New Member

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    im pretty sure i did everything right but tomorrow ill double check it again. Supposed to be a high of +7 here tomorrow with wind chill in the - 10 range brrrr. im so glad i work outside !
     
    #7 Clubford00, Jan 18, 2008
  8. Clubford00

    Clubford00 New Member

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    I dont know what buttons i hit to screw it up but i reset all the defaults then did setup again and now its fine. Duh !
     
    #8 Clubford00, Jan 19, 2008
  9. jayman

    jayman Senior Member

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    That can also produce inaccurate results due to the bladder in the gas tank
     
    #9 jayman, Jan 19, 2008
  10. richard schumacher

    richard schumacher shortbus driver

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    "This sort of thing has cropped up before, and it has always been due to human error." :_>
     
    #10 richard schumacher, Jan 19, 2008
  11. Doc Willie

    Doc Willie Shuttlecraft Commander

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    Even using the recommended calibration procedure, the SG can still be way off. (After 6 months, I still haven't gotten mine right).

    There is a spreadsheet on CleanMPG.com that will get you closer, if you can figure out how to use it.
     
    #11 Doc Willie, Jan 19, 2008
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