concern with tire size

[Bad_Red_Sheep]

Ok, my truck is tuned with efi live autocal now...before it was had a bully dog triple dog with crazy larry. I sold the bully dog but when i put the truck back to stock with it I forgot to reset the stock tire size so the dog is vin locked. I have since gotten the sog back and want to set the tire size back to stock...my question is:is will this affect my truck as far as the efi? My tunes were made from a clean stock file so my first thought is no othee than my speedo bein off a little....thanx in advance!

[up@12]

If you load the Bully dog back in to reset the tire size and then re load you efi files it should be the same as your efi file will right over top of whatever is in there after resetting your bullydog. I'm sure someone will chime in if I am incorrect

[Bad_Red_Sheep]

Well I did that and when i reloaded efi i got a bunch of crap. Speedo doesn't work, ABS stays on, brake stays on abd I have a check engine light.

[anarchydiesel]

EFI Live only flashes the ECM, the problems you have are related to the ABS unit and possibly the TIPM. A dealer flash of those two modules may be required.

[RD TRCTR]

I am running into a similar issue. Had the SMARTY, used it to adjust the speedo for tire size, went from Summer to Winter tires, removed tire size adjustment, sold the SMARTY and installed EFILIve.

I put the Summer tires back on and have adjusted the "Tire Revs Per Mile", but the speedometer does not update. I have tried various values and nothing changes.

After searching here, I am a bit confused. Can EFILive update the TIPM or ABS module to update the speedo?

If not, it sounds like a need to use a module just for it. If it can, then SMARTY probably corrupted the TIPM and ABS modules and I need to go to the dealer for a reflash...

[2007 5.9]

Efi cannot flash tipm/abs...you'll need a smarty to change tire size.

[MQ105]

Efi cannot flash tipm/abs...you'll need a smarty to change tire size.

Can one use a Smarty (or other programmer) to change tire size without it affecting EFI?

[2007 5.9]

Yes with smarty. Others idk

[Cummins610]

My smarty won't allow to change for ABS without being VIN locked, so is the process load a smarty tune, adjust ABS, then return to stock and and load a efilive file in?

[LaserBob]

If you know anyone with an Auto Enginuity scan tool, it will change the tire size quickly and right over your EFI tune.

It can enable the cruise control idle-up feature also.

LaserBob