Kalums
New member
So I got my 2013 JKU back from the dealership /body shop Friday, installed /flashed the ecu with the superchips flashpaq 3872 for the 87 Octane program and did it under the "advanced settings" menu. When I went to calibrate the speedo it gave me the option on tire size(I measured like Eddie said from the ground on a level surface to the center of the Hub and multiplied by 2 then I measured from the ground to where the "real tread" begins on the side wall. The measurements were almost identical (only off by 1/8 inch) 32 1/4. Put that into the flashpaq, it did not give me an option to save but I pressed OK and it went back to the previous menu. Well apparently it didn't take because I just got pulled over for doing 81 in a 55 and my speedo was reading 65......
Ideas? Did I do something incorrect? Any one else have this issue?
Ideas? Did I do something incorrect? Any one else have this issue?