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bensalz1911
August 7th, 2018, 11:24 AM
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

joecar
August 8th, 2018, 06:10 AM
Post some screenshots so we can see what is going on.

What is your old tire size and your new tire size...?