How to Disable Multi-Displacement System (MDS) in VCM Editor | HP Tuners
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Learn how to disable Multi-Displacement System (MDS) on your Dodge vehicle for optimum performance.💪 MDS's purpose is to ultimately improve fuel economy, but in racing or performance situations, it doesn't provide much benefit. Using HP Tuners' VCM Editor software, you can easily turn it off (license required).
What is MDS?
Multi-Displacement System (MDS) is the cylinder deactivation technology used on some Dodge/Jeep/RAM/Chrysler V8 vehicles. MDS turns off cylinders 1, 4, 6, and 7 (in that order) under certain conditions (closed to steady throttle) to improve fuel economy.
Situations when you might want to disable MDS:
- Racing/high-performance driving situations
- If you install a non-MDS camshaft
- If you install an aftermarket exhaust and want to get rid of the exhaust drone
- You want to extend lifter life
Timestamps
0:00 Intro
0:06 Read your vehicle
0:19 Disable off MDS (Engine - Fuel - Lean/Fuel-Saving)
0:38 Why turn off MDS?
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Пікірлер: 40
Great video, I was wondering if I can do this with my 2008 jeep comamder overland 5.7 Hemi...Thanks
Can delete the rear trunk light speed limiter? Wanting to bypass delete soft close. EVAP codes also?
I have read some opinions and thoughts of the MDS lifters not getting the lubrication they need with MDS permanently deactivated. Why I recently held up on doing this via a tune. Any thoughts on this?
Is it okay to drive in number five all the time when you turn off fuel saver
I have a 2009 Honda Odssey with VCM I want to deactivate it?
Vehicle isn't supported I have a 21 wrx fa20dit will you ever add it??
Can I use VCM Editor to disable TPMS on chevy or any other brand.
Not to mention, when those cylinders are deactivated, they will run dry because there is nothing but an air spring. They will push all the oil back into the pan and you’ll have metal to metal contact. There are a bunch of Chevy GMC guys that are burning 3 quarts of oil per change because of the wonderful deactivation system, best thing you can do when you buy it new is to turn it off.
Can you do it remotely? I want to turn it off on my 2021 longhorn
hello , Boris from France i need crédits for mds disable to my Dodge Challenger i'm just starting to hptuners, thanks
I've got a 2013 SRT Jeep and that tab isn't available under the Fuel tab. I have the Parameter view level set to advanced. And I have a fresh code in Parameter access.
@Oxcotton09
6 ай бұрын
Make sure you disable “open up last tune on startup” then restart it, then open it again it should pop up
I put a 2020 Charger Hellcat drivetrain in a 2019 Challenger. Everything is fine except the speedometer won’t fit in dash. Can I get Challenger speedometer programmed to match Charger computer?
@myacidninjatheamazing1025
Ай бұрын
Should be identical just 2dr vs 4dr
With a 2018 ram 2500 6.4, to deactivate the mds, will I need to send the pcm in to be unlocked or can it be read and licensed with the mpvi2+ through the obd2?
@anthonyostir1748
6 ай бұрын
That truck and motor does not have MDS I believe
@joshuanetto9431
6 ай бұрын
@anthonyostir1748 this one did from the factory. The owner had a shop do a non-mds cam swap on it but needed everything disabled in the pcm. Future reference, it did incase anyone else runs into this. Send the pcm to hp tuners/pay for the credits to unlock and disable it. It was pretty simple and if I can help anyone feel free to let me know I'll do what I can. Thanks for the reply.
@Wurmfist
5 ай бұрын
@@joshuanetto9431I'd love to have it permanently disabled on my 2020 Ram 2500... I have a flowmaster muffler and it sounds stupid when in MDS (at least in the cab) so I always just tap the gear selector, but I'd love to not do that. I don't think it impacts fuel mileage anyways.
Can a mds delete be done on a 2012 jeep srt8 6.4 hemi? Do I need a special tuner installed?
@1999StangGT4
3 ай бұрын
Nobody rides for free, sir. Yes you will need a tuner.
I have a 2019 challenger rt. I have purchased 2 credits and installed the unlocked PCM from you guys. The lean/fuel menu doesn't even show up as an option. Every other menu is there except that one. How do I disable MDS?
@Oxcotton09
6 ай бұрын
So, in the tools tab. Or the edit tab, there should be view and change it from basic to advanced. Disable the “open last tune on startup”. Close out the program, then open the editor again and open the file. You should be able to see it after that .
@gr8bart1
6 ай бұрын
Do I need a unlocked PCM for 2017 5.7 challenger? Or can I just pull the file and tune it like GM cars??@@Oxcotton09
I have 2015 Ram Hemi 5.7..I downloaded my existing factory tune and when I open VCM editor/Engine Under Fuel Tab I DO NOT see the Lean /Fuel-Saving Tab
@jasonrosado6152
6 ай бұрын
Make sure your not in beginner setting, select edit menu, click view and change it to advanced
@nojosha3734
5 ай бұрын
Did it work
Do I need to replace the camshaft also from MDS to Non MDS? Or the camshaft is same ?
@sidgar1
7 ай бұрын
You only need to do that if you are going for a hardware MDS delete (replace parts to disable it). This system seems to do it by reprogramming the PCM to not use MDS (soft disable)
Do I have to replace my cam to do this?
@1999StangGT4
3 ай бұрын
No, absolutely not. If you had to add a cam it would work badly in eight cylinder mode. No need to mess with anything and just put a smile on your face.
Do you need vehicle credits to do this, or just the Hp Tuners device?
@beckbuilt3209
9 ай бұрын
i was wondering the same thing and was wondering if the pcm needs to be unlocked for it.
@3SM20Pilot
9 ай бұрын
You'll need credits.
@3SM20Pilot
9 ай бұрын
@@beckbuilt3209 I think you'll need to unlock the ECU for '15 and newer
@beckbuilt3209
9 ай бұрын
@@3SM20Pilot you are correct I ended up needing 6 credits and pcm unlock
What about the vvt?
@myacidninjatheamazing1025
Ай бұрын
Why would you want to disable advancing/retarding your timing?
Too bad it only looks so easy on your video I own a dodg charger 6.4 2022 and vcm suite does not read the software of my engine and shows software skipped all the time !!!
Does anybody ever reply back to comments here?
@samp7019
5 ай бұрын
Yes