Setting arbitrary tire sizes for speedometer calibration

Testing new functions
litian520
Posts: 4
Joined: Tue Sep 03, 2019 5:23 pm
Vehicle: EcoBoost2.0T/204ps

Re: Setting arbitrary tire sizes for speedometer calibration

Post by litian520 » Fri Oct 11, 2019 1:40 am

very good

Vale5799
Posts: 1
Joined: Sat Jul 13, 2019 10:53 pm
Vehicle: F150 5.0/2019

Re: Setting arbitrary tire sizes for speedometer calibration

Post by Vale5799 » Sun Oct 27, 2019 10:52 pm

I am trying to correct the speedo on my 2019 F150 5.0. I have changed the rims and tyres but apart from being wider they are equal the the factory size (orignals 275/55/20 now 305/55/20). I used the settings from the calculator spread sheet but I still have an error. Any suggestions on how to resolve this? Thanks

Dordogne
Posts: 15
Joined: Fri Aug 12, 2016 6:21 pm
Vehicle: Mustang 5.0 2017

Re: Setting arbitrary tire sizes for speedometer calibration

Post by Dordogne » Sun Oct 27, 2019 10:59 pm

What do you mean by “error” - like a DTC or a speedo error?

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