MDS still on after turning it off...

[mannytwotwo]

It seems the MDS only stays off when I have the A/C on but as soon as I turn off the A/C and come to a stop it kicks on again. I have a 2012 Charger R/T Max so if anyone has a work around or a separate file I can install please advise.

Thank you.

[dtru1222]

When you are at a stop or low MPH it will not go into 4 cyl mode.

How are you checking to see when you are in MDS mode? Just an FYI the "eco" or "fuel saver" light does not mean your running on 4 cyl.

[mannytwotwo]

The moment I stop at a light the RPMs drop and the car shudders slightly. If I have the AC on the RPMs stay the same and no shudder.

[dtru1222]

That isnt the MDS.

But it sounds like you do have an issue. Does this only happen with the new tune? Have you tried going back to stock to see if you have the same problem?

[mannytwotwo]

It occurs with or without the tune. I'm going to turn MDS on again and will test with the AC on and off to see if I can rule out MDS altogether.

Thank you.