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Ford Pass Mileage, Odometer don't match

got3fords

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Why is the mileage displayed in the app always 1 mile different from the odometer in the Ranger? It's not a big deal, but bugs me.
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subquark

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Oh great, now I gotta get my fat @$$ self out of the chair and walk out to the truck to see if I have this same discrepancy. =P

Trust me, if something can be bought to address it, consider it ordered! =D

this'll be me in a minute ...
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OGMix376

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Maybe because we can’t see the fraction decimal of the mile like we could in older vehicles xxxxxx.x
When the robots in the truck that control odo picks up the half mile maybe it rounds up on the app?
 
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got3fords

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Maybe because we can’t see the fraction decimal of the mile like we could in older vehicles xxxxxx.x
When the robots in the truck that control odo picks up the half mile maybe it rounds up on the app?
I had to think about that a minute, it actually is possible. The truck doesn't roll over until it is actually past .9, but the app rounds up at .5? So that means it should at least read the same from 0.0 to 0.4. Seems like I have never noticed it being the same.
 


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You can adjust it from the link below. I use the Fuelly app and also severe OCD and this will get you pretty much dead on most of the time. It takes several tank fulls to re-adjust and there are a few times it'll be a couple tenths off. When I first got both my Rangers they were 2-3 mpg off and I just could live with that! :crazy:

https://www.ranger5g.com/forum/threads/fuel-calculator-adjustment.2996/
 

subquark

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You can adjust it from the link below. I use the Fuelly app and also severe OCD and this will get you pretty much dead on most of the time. It takes several tank fulls to re-adjust and there are a few times it'll be a couple tenths off. When I first got both my Rangers they were 2-3 mpg off and I just could live with that! :crazy:

https://www.ranger5g.com/forum/threads/fuel-calculator-adjustment.2996/
Thanks I forgot this could be done without FORScan, thanks!

LOL, I have too many bookmarked posts ... =D

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Awg9Tech

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You can adjust it from the link below. I use the Fuelly app and also severe OCD and this will get you pretty much dead on most of the time. It takes several tank fulls to re-adjust and there are a few times it'll be a couple tenths off. When I first got both my Rangers they were 2-3 mpg off and I just could live with that! :crazy:

https://www.ranger5g.com/forum/threads/fuel-calculator-adjustment.2996/
That’s fuel/DTE.

I believe that the OP is looking at trip mileage vs Odo.
 

AzScorpion

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That’s fuel/DTE.

I believe that the OP is looking at trip mileage vs Odo.
He's talking about the OD mileage and the app mileage.

Why is the mileage displayed in the app always 1 mile different from the odometer in the Ranger? It's not a big deal, but bugs me.
 

Grandaccess

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1st world problems LOL
there are poor people in Africa their odometer dont even work...
 
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got3fords

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I believe that the OP is looking at trip mileage vs Odo.
I'm comparing mileage displayed in the Ford Pass app, vs odo reading on the truck.
 

TJC

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I had to think about that a minute, it actually is possible. The truck doesn't roll over until it is actually past .9, but the app rounds up at .5? So that means it should at least read the same from 0.0 to 0.4. Seems like I have never noticed it being the same.
There are lots of possibilities with software. Just because a mechanical odometer tracked to the 10th of a mile, doesn't mean the software does. It is a simple thing to drop the tenths in any numeric value calculation or display.

I suspect Ford is probably calculating to the 3rd or 4th decimal place in the software....i.e, 9.9999 but only displays when it roles over. You really can't tell unless you have access to the source code, SW specifications, or a published document.

It is also possible that FordPass reads the same data source and rounds up. It would be easy to check that. run the truck until it trips to the next mile and check FordPass. Run a couple of these tests to check for the trip level.

If Ford pass is consistently 1 mile ahead there is more going on.
 
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Big Blue

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If Ford pass is consistently 1 mile ahead there is more going on.
I sure hope fordpass is not reading our mileage in real time. Though, that would explain why our batteries keep going dead. Then we would have something to worry about. ?
 

TJC

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I sure hope fordpass is not reading our mileage in real time. Though, that would explain why our batteries keep going dead. Then we would have something to worry about. ?
My 2005 Ranger is a "Hard Drive on wheels", my 2020 Ranger is a "Smart Cell Phone on Wheels", Until I neutered it... Now it is also a "Hard Drive on wheels".

And the Hard Drive on the 2020 Ranger records far more data than the Hard Drive on the 2005 Ranger does.

The only way anyone can read the data on either truck now is to physically plug into the port and pull the data. It is why I don't like going to a Service Dept at a Ford Dealership.

I am making an appointment at the Mazda Dealer to disable the TCU in my CX-5 tomorrow.
 
 








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