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Thank you very much! What mileage of your car?

I believe that some uncommon driving conditions was met to cause this problem. I have already updated PCM and only hope that these conditions were not met BEFORE software update... Is it possible to access undercover of engine without it disassembling?

The only thing that doubt me in context of CD failures is the absence of software ability to detect whether all parts of engine works as they should work. I try to estimate probability of engine damage. How often CD was triggered? What concrete conditions did increase probability of arm falling...

I saw on this theme some pictures with graphical indication of CD system (new Mazda 3,6?). So, probably some PIDs can be interpreted in that way. The other question: how the car with non functional engine part (1 of 2 valves on 1 on 4 cylinders) can be operated normally in most of daily usage...

Hello! I am cx-5 2019 owner in Europe. I learned about CD system only after information about last recall. I have already passed PCM update procedure, but want to understand more about CD system now. Is it possible to inspect modes when this system is working? I have OBDII adapter and Forscan...