How to completely disable cylinder deactivation?

[nickswhip24]

Hi all-first post here...just got into a used 2024 CE CX-5...what can be done to remove, delete, say goodbye to cylinder deactivation?

It’s a joke that a 4 cylinder car needs this-i know someone can make this happen...reached out to some folks who do tunes and had no luck.

Can the solenoids just be unplugged to get it done? Thanks!

 

[N7turbo]

Hi all-first post here...just got into a used 2024 CE CX-5...

Welcome to the forum.

what can be done to remove, delete, say goodbye to cylinder deactivation?

Not possible as far as we know.

 

[wlong01]

Only way you're gonna remove it is to buy a different car. Would be nice if there was a button to disable it like I-Stop.

 

[BoomerZoomr]

I don’t think my Mazdas have this "feature", but I am curious… is the vehicle doing something that is noticeably undesirable?
For the record: I dislike cylinder deactivation and start/stop engine technology.

 

[sinistriel@]

You can unplug the electrical connectors to both solenoids and it will stay off. If your ECU is supported by current tuning software you can then turn off the codes they set so you will not have a CEL.

 

[walt]

You can unplug the electrical connectors to both solenoids and it will stay off. If your ECU is supported by current tuning software you can then turn off the codes they set so you will not have a CEL.

Have you done this?

 

[nickswhip24]

I don’t think my Mazdas have this "feature", but I am curious… is the vehicle doing something that is noticeably undesirable?
For the record: I dislike cylinder deactivation and start/stop engine technology.

thats great, i think from 8-24 on mazda ran short of some parts needed to do "C/D" so maybe your car was early 25?
Is it noticeable-that is subjective..to me...it is ..and why need a tourqe converter or engine repair to save some gas...isn't mazda the zoom zoom car

 

[RattleCanAR]

Does the '19 have C/D? I think it does but I can't honestly say I have ever noticed it in action.

 

[walt]

For the record, I have a 2020 with C/D and when I watch the display and the cylinder cut out happens I can't feel it. Even if I try. Strange because so many seem to complain about it.

 

[ADS-B]

For the record, I have a 2020 with C/D and when I watch the display and the cylinder cut out happens I can't feel it. Even if I try. Strange because so many seem to complain about it.

Same here. I don't understand the complaints.

 

[HyFlyer]

Same here. I don't understand the complaints.

For me, it's not a matter of "feeling" CD operating or not, it's about the added complexity and cost while reducing reliability to appease .gov CAFE numbers with small efficiency gains of a couple of mpg points.

If Mazda offered CD as, let's say a $1500 "option", who's gonna pay that to save $600-$700 bucks in gas over a 200k mile life of the vehicle? The math doesn't work for me.

 

[stickerbush]

I could sometimes feel CD engage on my 2020 CX5. It didn't bother me until I had to have the transmission replaced due to the torque converter failing which was caused by CD.

 

[hsdejong]

It didn't bother me until I had to have the transmission replaced due to the torque converter failing which was caused by CD.

A torque converter failing caused by CD?
Please tell...

 

[stickerbush]

A torque converter failing caused by CD?
Please tell...

Models with CD require a different torque converter due to vibrations caused by cylinders activating and deactivating. Sometimes the torque converters fail. That's it in a nutshell, if you search threads here you can find more nuanced details.

 

[sinistriel@]

A torque converter failing caused by CD?
Please tell...

This is a common issue on any vehicle that uses CD, GM in particular has converter issues on the 6L/8L family. GM will command anywhere from 20-60 rpm of
slip to help with unwanted vibrations which leads to earlier failure. To cancel out vibrations when running in deactivation mode there has to be a large pendulum damper installed inside the converter. This takes up valuable space inside the converter specifically reserved for the multi plate clutch for the Skyactivs. The CD cars use a more traditional clutch lining that can't tolerate early lockup like a multi plate will. The friction material needs to be more aggressive to make up for it. In the case for Mazda as that clutch wears it contaminates the other clutch sets inside the unit specifically changing the coefficient of friction of the High Clutch which is the input clutch used in 4th-6th. The converter lining has a high iron/graphite content and when it deposits in the High Clutch the squeak noise happens during apply.

 

[sinistriel@]

Have you done this?

I do not own a CD vehicle but know people who have done this process without issue.