Have a 2008 chevy silverado it has bigger tires on it then stock trying to correct speedometer on it. Have efi running as administrator and enter tire size and see no changes any help would be awesome! thanks for the help
speedometer correction help
Have a 2008 chevy silverado it has bigger tires on it then stock trying to correct speedometer on it. Have efi running as administrator and enter tire size and see no changes any help would be awesome! thanks for the help
Post some screenshots so we can see what is going on.
What is your old tire size and your new tire size...?
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