did you adjust the tire size when you loaded the tune?

as for the MDS codes when you returned to stock, that sounds like an odd issue that some 05 models have after a flash, where they get stuck in MDS mode. To fix it, disconnect the battery for a second and it should be fine. Not sure what ...

No, not Tire Size...but i raised the speed limiter about 15 mph.
But already set it back to Stock.
Nothing Changed.
Will try the battery disconnect and tell you the result then.

14 years later.... and i have the same Problem with my 5.7 Jeep Grand Cherokee from 2005....

Recover the Stock tune
91 octane
Diablo tune
87 octane
MPG Booster
With no tune i have Cruise Control anymore or MDS
.....
What can i do?? How can i repair my Car......or do i need a new ECU??????

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Seems nobody is active here (((

Hey Guys
Greetings from Germany,

I have a 2005 Jeep GC Hemi 5.7. Every Hardware is Stock and very well serviced. Car has about 105.000km ~ 65.000 miles.

I bought an intune i3 Platinum last week.
I installed 91 Octane Tune and set MDS off.

Car runs great BUT i don't have Cruise Control anymore. At ...

*push

Hey Guys
Greetings from Germany,

I have a 2005 Jeep GC Hemi 5.7. Every Hardware is Stock and very well serviced. Car has about 105.000km ~ 65.000 miles.
I bought an intune i3 Platinum last week.
I installed 91 Octane Tune and set MDS off.
Car runs great BUT i don't have Cruise Control anymore. At ...