How to use FORScan to adjust tire size

Car configuration discussions and experience sharing
abagoz
Posts: 1
Joined: Mon May 03, 2021 8:29 pm
Vehicle: Ford F150, 2017 5.0L

Re: How to use FORScan to adjust tire size

Post by abagoz »

Tire Circumference change fixed my Speedo accuracy. Checked it with a SPEEDO app and Waze. Perfect at 80mph.
TX_Jax
Posts: 7
Joined: Wed May 19, 2021 10:06 pm
Vehicle: F350, 7.3L, 1999

Re: How to use FORScan to adjust tire size

Post by TX_Jax »

Okay, I don't get it. I am running the latest FORScan v2.3.40 beta.

I have a 1999 F350 Superduty

When I click on the item, I get drop down menus. I choose the correct item, but it won't write.
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Writing to GEM 1 Notation 2021-05-19 143849.jpg
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TX_Jax
Posts: 7
Joined: Wed May 19, 2021 10:06 pm
Vehicle: F350, 7.3L, 1999

Re: How to use FORScan to adjust tire size

Post by TX_Jax »

This is what the v2.3.40 does. You choose the right tire size - mine is 657.

Tire Selection Choices 2021-05-20 060447.jpg
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TX_Jax
Posts: 7
Joined: Wed May 19, 2021 10:06 pm
Vehicle: F350, 7.3L, 1999

Re: How to use FORScan to adjust tire size

Post by TX_Jax »

And this is what I get when choosing off the menu. I click "Write", then . . .

Writing to GEM 1 Notation 2021-05-19 143849.jpg
Writing to GEM 1 Notation 2021-05-19 143849.jpg (79 KiB) Viewed 814 times
rbentnail
Posts: 77
Joined: Sun Aug 16, 2020 1:10 am
Vehicle: 2013 F150STX 4x4 5.0

Re: How to use FORScan to adjust tire size

Post by rbentnail »

I found the options for pre-2015 vehicles to be pretty scarce. On a vehicle that old you may not be able to do much at all with Forscan. You might consider looking for an add-on aftermarket module.
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