Wont disable MDS or change Tire Size

[sstoner911]

I loaded the 81 octane tune and tried to change the tire size but it told me it failed to change the tire size.

I also disabled MDS but I still get the ECO light.

My last question is can I load the towing tune even when not towing ad what does that tune change?

[mikel]

what vehicle is this?
we'll have to look into the tire size.

MDS is not ECO. MDS can be disabled and still get the eco light, that light just means you arent driving hard enough

[sstoner911]

This is a 2014 Dodge Ram 1500