How to completely disable cylinder deactivation?

N

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!
 
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.
 
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.
 
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.
 
BoomerZoomr said:
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.
Click to expand...
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
 
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 said:
Same here. I don't understand the complaints.
Click to expand...
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.
 
hsdejong said:
A torque converter failing caused by CD?
Please tell...
Click to expand...
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.
 
hsdejong said:
A torque converter failing caused by CD?
Please tell...
Click to expand...
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.
 
Even still, it doesn't sound like you will achieve much by doing so. You can't undo the fact that you have a different cylinder head and torque converter design to accommodate the CD.
 
sinistriel@ said:
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.
Click to expand...
All this potential wear and tear yet Mazda does not have a scheduled fluid change for transmissions. Or dip stick. When I asked about there being no dip stick the dealer said life time fluid.
 
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