Quote:
Originally Posted by nathan01xl
The more I p&g the more error my odometer shows when determining total distance traveled. Fortunately my ultra-gauge is pretty well calibrated (accurate even to radar speeds which show 2x along daily commute) so I don't pay much mind to it. However this last tank i really used p&g a lot and my odometer was showing a really low reading (585 when really went 600).
SO... I decide to check my commute distance via Google maps, and Google is telling me my commute is nearly a full mile longer than I had thought. So that leads to my question...
How do you all verify your route distances?
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If you drove your route 'normally',you'd capture what the car system 'sees.' Your speed sensor is not 'transmitting' to the CPU when the power is off,so it's 'blind' during P&G.You could compare that with your GPS.
Since the electronic speed sensor is pulsing with every rotation of your output shaft,I suspect that it has a higher resolution than the GPS.
I don't do P&G and it can be 760-miles between fills,so a small deviation doesn't matter over those distances.
The shorter your route,the higher the potential for discrepancy exists.