Everyone with 2007 silverado issues u7194 post here for mike

sk65stang · Post by **sk65stang** » Tue Dec 22, 2009 2:24 am

It's a Christmas MIRACLE!!! Bought a new set of tires for the truck (275-65-r18 Michelins) and thought let me try this crazy predator one more time ... ended up measuring the circumference of the tire calculating the diameter off of that (it came out to 32.12) stuck a 32 in on the tire size, set the speed 1 and 2 all the way up and the 3 one off. Loaded the 87 tune and NO LIGHTS & NEARLY 200 miles now!!! Have zero clue why it worked and dont care so long as it works from now on. I had tried 29-34 on the old set of tires and anything anywhere close to 265-65-r18 without any luck now boom first try gets it. Weird but a pleasant suprize. This luck holds out I'll be lining up for a custom tune in no time!!

Post by **06MonteSS** » Tue Dec 22, 2009 9:09 am

w00t!!!

cool beans...

concoursd · Post by **concoursd** » Tue Dec 22, 2009 3:46 pm

I have repeatedly advocated for the circumference method AKA the roll-out method for proper tire size calibration. That is the way the OEM does it. They dont use the sidewall numbers or sitting diameter.

http://diablosport.com/index.php?name=P ... =tire+size

motox151 · Post by **motox151** » Mon Dec 28, 2009 5:09 pm

i can officially declare 9t09f a success! No lights or issues and I was even able to change my tire size to what I am actually running!

moose4797 · Post by **moose4797** » Wed Dec 30, 2009 12:31 am

can someone please email this file to me,,,tried to find it with no luck