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tune time
February 6th, 2017, 04:55 PM
I have tried what little i know how to do and i still have trouble. there is no dash in the car rite now. but when i am test driving it and logging the efilive data. the scanner data shows 83 mph when my GPS shows 60 mph.
i listed my tunes if you see something i missed please let me know, i am sure i missed something simple it is part of being new i guess.

Tire size 275/25/26
Rear gear 3.73
6L80E rear wheel drive transmission