Mds
09-18-2017, 05:09 AM
Join Date: Jun 2016
Location: Northern Mi
Posts: 38
Likes: 0
Received 0 Likes
on
0 Posts
Mds
2009 Ram 1500 5.7
My question is can the MDS be "turned Off". I am not original owner, and I can never tell if the MDS is working
09-18-2017, 08:31 AM
Administrator
Dodge Forum Administrator
Join Date: Apr 2010
Location: Clayton MI
Posts: 80,636
Likes: 0
Why would you want to turn it off?
09-18-2017, 09:03 AM
Join Date: Jun 2016
Location: Northern Mi
Posts: 38
Likes: 0
Received 0 Likes
on
0 Posts
I don't want it off. I bought this truck last year, and I haven't been able to tell when the MDS is on, so my question was is it possible that someone has turned the MDS off, or disabled it somehow
09-18-2017, 09:17 AM
Administrator
Dodge Forum Administrator
Join Date: Apr 2010
Location: Clayton MI
Posts: 80,636
Likes: 0
May wanna get a build sheet for your truck, and see if it is equipped. Can get one
here. Just click on the 'equipment listing' link.
Apparently, it IS possible to disable it..... I believe it requires reprogramming the PCM though....
09-18-2017, 09:54 AM
Join Date: Jun 2016
Location: Northern Mi
Posts: 38
Likes: 0
Received 0 Likes
on
0 Posts
Got a build sheet - 5.7L V8 HEMI MDS VVT Engine
09-18-2017, 10:05 AM
Administrator
Dodge Forum Administrator
Join Date: Apr 2010
Location: Clayton MI
Posts: 80,636
Likes: 0
So it is either working fine, or not at all.
I think it's pretty picky about just what circumstances it will drop several cylinders.....
09-18-2017, 10:23 AM
Site Moderator-Dodge Tech
Dodge Forum Moderator
Join Date: Sep 2010
Location: Nashville, Tennessee
Posts: 3,725
I bought a Superchips JUST for the sole purpose of turning MDS off. Someone else could have done the same thing before you.
09-18-2017, 11:03 AM
Join Date: Jun 2016
Location: Northern Mi
Posts: 38
Likes: 0
Received 0 Likes
on
0 Posts
I don't think it is working at all
09-18-2017, 03:33 PM
Administrator
Dodge Forum Administrator
Join Date: Apr 2010
Location: Clayton MI
Posts: 80,636
Likes: 0
Can you talk to the previous owner?
09-18-2017, 04:31 PM
Join Date: Jun 2016
Location: Northern Mi
Posts: 38
Likes: 0
Received 0 Likes
on
0 Posts
It was a company, so I don't think they would have turned it off
