Mazda CX-5 2.2 SkyActiv-D - DPF filling fast

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spektr
Posts: 90
Joined: Wed Nov 11, 2015 4:27 pm
Vehicle: mazda 6 2.2

Re: Mazda CX-5 2.2 SkyActiv-D - DPF filling fast

Post by spektr »

Well, instead of 300km regeneration interval, I got 220-230km. That's because pm acc is higher than pm gen. 85000 on the clock, so... What to check?
spektr
Posts: 90
Joined: Wed Nov 11, 2015 4:27 pm
Vehicle: mazda 6 2.2

Re: Mazda CX-5 2.2 SkyActiv-D - DPF filling fast

Post by spektr »

Is it possible that EGRP value is 112%??
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Spesking
Posts: 7
Joined: Tue Aug 30, 2016 3:05 pm
Vehicle: mazda cx-5 2015

Re: Mazda CX-5 2.2 SkyActiv-D - DPF filling fast

Post by Spesking »

@Spektr:
Was this during Engine Off condition?
In the log you shared with me, EGRP (%) is fine!


I´ve done today my next Regeneration with SW 18881-B (2017). It ended at 300km, which is for me fine. But it was quite exhausting to reach that distance, as I was not accelerating harder than 2000RPM and tried to save as much fuel as I could (6,4 L/100km).

Also I´ve done some reference drive prior and after regeneration. This allows me now to compare DPF Diff pressures in "Full" and "empty" stage. This is a good indicator of DPF quality. If there is ash remaining which prevents exhaust gas flow then pressure will be increasing after succsessfull regeneration attempt.

I´ve calculated again a DPF Pressure delta of about 70% after regeneration was done.
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Last edited by Spesking on Wed Jun 22, 2022 4:41 am, edited 1 time in total.
spektr
Posts: 90
Joined: Wed Nov 11, 2015 4:27 pm
Vehicle: mazda 6 2.2

Re: Mazda CX-5 2.2 SkyActiv-D - DPF filling fast

Post by spektr »

No, that picture was captured when i was going 120kmh on a highway :)
sikmedve
Posts: 8
Joined: Fri Mar 04, 2022 1:28 pm
Vehicle: CX-5, 2.2D 175PS, 2015

Re: Mazda CX-5 2.2 SkyActiv-D - DPF filling fast

Post by sikmedve »

Can somebody confirm if these injector test bench results are valid or method is good, etc?
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Spesking
Posts: 7
Joined: Tue Aug 30, 2016 3:05 pm
Vehicle: mazda cx-5 2015

Re: Mazda CX-5 2.2 SkyActiv-D - DPF filling fast

Post by Spesking »

Unfortunately I don't have s clue about if parameters are good or not. Why did you send them to inspection? Are they from Mazda Sky Active 2.2 engine?
sikmedve
Posts: 8
Joined: Fri Mar 04, 2022 1:28 pm
Vehicle: CX-5, 2.2D 175PS, 2015

Re: Mazda CX-5 2.2 SkyActiv-D - DPF filling fast

Post by sikmedve »

Of course
zdarova
Posts: 23
Joined: Sat Aug 28, 2021 2:23 pm
Vehicle: Mazda cx-5 2.2 diesel 175hp 2016

Re: Mazda CX-5 2.2 SkyActiv-D - DPF filling fast

Post by zdarova »

I tested my injectors this week in a specialized injector diagnostic center.
I will share the results after I will take the car.
Anyway, they said my injectors are fine, no sign of cavitization ofnl the nozzle or scraches that he saw on other Denso injectors.

Therefore in my case the next step will be the DPF professional cleaning
spektr
Posts: 90
Joined: Wed Nov 11, 2015 4:27 pm
Vehicle: mazda 6 2.2

Re: Mazda CX-5 2.2 SkyActiv-D - DPF filling fast

Post by spektr »

Please keep us updated 👍
zdarova
Posts: 23
Joined: Sat Aug 28, 2021 2:23 pm
Vehicle: Mazda cx-5 2.2 diesel 175hp 2016

Re: Mazda CX-5 2.2 SkyActiv-D - DPF filling fast

Post by zdarova »

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Note that he also did a ultrasound cleaning but without opening the injector.
I also changed the washers from the copper ones to the silver color ones.

I will let you know in a couple of days if something :)
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