anything gained by updating to 9r29 from 9r25 ?

Not nearly as much as it would with it enabled...but, if your worried about MPG, why would you have MDS disabled?


I have DOD disabled because of the fact that there have been reports of excessive oil use as a result of carbon build up in the rings due to the DOD. GM does have a service bulletin ...

Still wondering if this MPG update will help with DOD disabled?

Great..Will give it a try. But one question, with DOD deactivated, will this tune help and can the 1-3 MPG gain be expected? I have been running with DOD deactivated and my mileage has decreased slightly. If I can still get improvement from what I'm now getting with no DOD this will be a good thing ...

I disabled the DOD in my 2007 Yukon and have not noticed any difference in my gas mileage. I do feel more comfortable with it disabled as it should will benefit the longevity of the engine, no valves constantly collapsing then reactivating while switching back and forth from 4 to 8 cyl. operation ...

Can anyone comment on the affect on gas mileage by disabling AFM (DOD) on either a 2007 Yukon or Tahoe with the 5.3 flex engine. Also is there any potential for damage to the engine if disabled long term?

9r08 sent to your email. Why is updating to 9r21 to be a problem. I did update and no problem so far.

Need revision r08 or r08 for U7194. Running 9r02 on a 06 Vortec Maxx 1500 want to run newest revision and see thet r21 is a bad idea. How to get revision? [email protected] is email if someone can email it! Thanks

Why is updating to r21 a bad idea? I just updated but was I better off to ...

Thanks, now updated to 9r21... Now the question, for a 2007 Yukon with the 5.3 flex, was the upgrade of benefit or did I just use up more memory to install the update since it is larger in size? If nothing gained what revision would give me the latest improvement in my Yukon without using excessive ...

When I attempt to update from v. 9r18 to either 9r21 or 9r21c my 7194 advises that it is unable to downgrade from 9r16. I'm confused....now what?

That makes sense. Still sounds as if it is an assume tune!

Really? And 195mph with an engine that is suitable for use with the U7194? Where do I get a tune that will give me 195 mph?

But microsoft never said windows 7 would work on old computers!! Diablo said 7194 will work on 2011 trucks. It wont!!! Thats not even in the same equation!!

If I'm not mistaken we are talking about hardware, not software. HP or Dell never stated their computers would work with all software ...

I think i might see a lawsuit coming for false advertisement on the 7194's there saying theyll work with the 2011. but they dont. the older 7194 cant go past 9r08 so how are they 2011 compatiable? we should get a free upgrade to a new 7194 if they cant make the old ones work!!. any lawyers wanna ...

Any need or advantage to update to 9r18 from 9r17 for use on a 2007 Yukon with a 5.3 engine?