You wrote "This is actually one operation that in my own personal Mazda is vital for me to have a constant monitoring so I can determine where to fine adjust some ECU calibration to improve my engine responses." Where did you get the program to alter the computer programing on your Mazda ? Back when I had my 2014 Camaro ss 1LE I had EFI live to tune the computer to my mods. I wasn't aware Mazda had a program for that purpose ,other than the dealers. Are you a Mazda dealer tech ? No need to send me any info on your scanner or how to us a scanner . I have an updated Autel MaxiCOM MK808 Scanner and know how to use it .

 

OMG dude I actually flew from CA to Florida for a 2 week coarse to become a Certified EFI/ECU Performance Calibrator. I have been calibrating customers ECU in various countries all over the world ECU on at least 3 different platforms for the last almost 20 years. I use a few ECU ODDII access programs to adjust all levels of operation even some to change TCM transmission operations. On one platform I have a rare FULL ACCESS program that goes into area's not normally broken codes from the OE to access. As for Mada I have access through my accounts 2 main Mada Dealership and can and do Pass-throughs on ECU for MAZDA and almost every other vehicle platforms.

Maybe spend some time in the future and look at things I have posted on this forum instead of assuming I am a DIY JOE AVERAGE member? I work and have worked hard at my chosen career to be more than the average Automotive Technician.

 

I figured you weren't a DYI joe back yard mechanic .What surprised me was you didn't know ,or refuse to acknowledge the 2022 CX5 Trans has been updated to make it more responsive . This may very well be part of the reason the OP has a hesitation on his 2021 on takeoff . I would like to get rid of /reprogram the cylinder activation on my 2023 as soon as the warrantee is over. I may hit you up for the scrip to do it in the future.

 

That has to do with the programing of the transmission. Only the very brave will try to alter that programing. The devolvement for transmission shifting in all aspect was done on a highly complex algorithm to match the engine ECU operation. Not vs versa. This means that the ECU engine control is almost exactly the same as previous years with only a few variables. Nothing that would cause what is being described as off the line hesitation? Thats why I would really need to see a throttle % and compare it to the engine rpm and MPH to know what if anything was done or not as it should be.
The cylinder deactivation is top on the list from at least 2 programs I know of to have a CAN-TUNE available offered with tier package by next summer . If and when they do and if they don't lock the ECU I will be able to have any one that uses one of the programs I use to send a data log and can see what was done and also to tailor a better custom Calibration a little more personal. At this point I would repeat my earlier response

 

I also have a 2021 CX-5 and have similar issues as you. Dealer couldn't find a problem either. Its much worse when cold. When starting from a stop, the hesitation makes you think it needs more fuel so you push the accelerator a bit further and then you accelerate too quickly. I'm learning to accelerate more slowly though I really don't like having to think about it when starting from a stop.

 

WELCOME TO THE FORUM

If you look at your work order did, they test your drive-by-wire or what you might call the throttle pedal assembly.

When members often post the quote "the dealer couldn't find the problem" but do not go into a little more detail about that work order it is hard to guess what they did not or did not check?


Side comment not necessarily related only observed in general.
I wonder why we don't read more owners when they do have a problem and get a neutral answer from the dealership why they did not request a drive along specifically to show the service representative what the drivability concern is?
As an independent shop we get at least a customer EVERY week that brings his/her vehicle most of the time needing to leave it because of how busy the shop is later only to call them up and tell them we don't find what they are describing a problem. Yet when they come to pick up their vehicle and if at that point, we have time for a ride alone understanding many times what the customer thought was a problem ending up being something totally different than what they said was or they wrote on the drop-off information!

 

I think it has to do with the throttle by wire settings. I had a Sportage that was the same way. It's really annoying when you don't want to hold it wide open pulling away from a stop light. There is a little sag in the acceleration, then it takes off like a scalded dog.

 

I don't have any hesitation issues in my '21. Love the transmission. For a standard auto, it's pretty responsive and the shift action is really smooth.