Mazda6 (2016), P0012 error - How to fix?

[Avalon]

Good day

I need your help - expert advice on Mazda 6, 2.5l (2016)!

For a month and a half we have not been able to find the cause of the P0012 error on my auto.
P0012 “A” Camshaft Position - Timing Over-Retarded (Bank 1)

During this time, the "Check engine" light came on 5 times, after a while it went out, now it is on again.

I've visited the official Mazda service. Everything was checked according to the instructions (wires, tags, sensors, oil pressure, etc.) several times - everything is in order, but the reason has not been found. Just in case, I changed several gas stations, but did not give any result.

Mileage is 52000 km only.

Perhaps you have encountered such a problem before, can you please suggest in which direction to continue diagnostics?

Thanks for your assistance!

 

[Avalon]

It is part of a piston and place where this piston was.

 

[edmaz]

Well that oil change interval is certainly adequate maintenance on your part, and the number of km is quite low as well. Plus the 2016 was pre-CD, so this is the less complex engine design as well.

In all of the years I've spent on auto forums, I can't recall reading another case of a piston breaking, where there was no initiating cause, such a rod being thrown. But of course any part could have a defect, and it's just your very bad luck to have it happen to your engine. Perhaps you can find a fairly low mileage used engine?

 

[Avalon]

Yes, presently searching for some low km used engine. Guys from service still trying to find out what is the reason of such failure.

 

[edmaz]

I hope this works out as well as it possibly can for you.

 

[Dindon]

It is part of a piston and place where this piston was.

Hey Avalon, you talk about piston cilinder 1? Or something or actuator’s piston?

 

[Avalon]

HI! This one

 

[Dindon]

HI! This one

Do you replaced the vvt gears?

 

[Avalon]

yes, but this photo of the piston refers to the second failure