try 2200mm circumfrence

got it fixed, had a buddy use a tech 2 to read the speed difference in the PCM and ABS

the lights stay off around town and short interstate drives. When i get up to around 65mph is when they come on now. They were coming on around 40 or even lower. i just keep trying more and more numbers.

had the truck looked at and they say its fine. if the diablo shows wheel speed adn vehicel speed sensors on the real time data logging i may put it back on and get the difference in the two and get it fixed that way....I HOPE

Does the 7194 monitor wheel speed sensor and vehicle speed senor in real time?

thanks for no help....diablo is GONE and edge programmer is now in my truck!!

my dealer wont give me a refund, what do i have to do to get one directly from you guy?

yeah i did, i can atleast change the speedo. as far as engine power....maybe there's a difference

hello? anyone????????

so i have to reset before every new size try? obviously i cant just put 317-68-18 and get it right....thats way to much effort to get the lights out

tried ratios from 58 to 72

ok, downloaded the update when it came out. have changed the ratio up and down, width up and down and still cant get the lights out. again the reason i got the tuner was to fix my tire size. a few friends got hypertech tuners an just typed in 35" and it works perfect. whats next? i want my speedo ...

any news????? also noticed that when i tow a trailer and hit the tow/haul button there is no change in RPM like there should be

ok adjusted from 35-32.5, at 32.5 lights never go out. they are on as soon as the truck is started. the other sizes i have to drive around some to get the lights on. any MORE ideas?

adjusted the ratio up and down, still on finally got my owners manual and it says its the "dynamic rear proportioning" that is 'upset' when both the lights are on. any input on mixing that?