Cayman 718 GPF Failure

[Oldbiddy]

Morning Paul,

It's a good thought, we just need our GPF car owners to engage with us and help us determine how well these cars are managing to control their particulate emission systems.

Recent data from a 2020 718 Cayman circa 19K miles. 100% OPC service history. Soot OK, but ash level look dodgy.

K211 – Particulate filter bank 1, soot load calculated = 0.39%
K221 – Particulate filter bank 1, soot load measured = 0.00%
K230 – Particulate filter, oil/ash load calculated = 0.00%
K231 – Particulate filter bank 1 – oil/ash measured = 61.57%

 

[Cyclemotor1958]

Hi Oldbiddy

Without prejudice

Yes that oil ash reading is far to high for the mileage covered, but remember its not real.

And the usual very low soot value data, and I suppose the differential pressure sensor reading will be very low also.

It's a software glitch, the oil ash measured value as been programed to come on to soon.

It's that software ticking clock again moving into a new model year.

It doesn't need a modified exhaust because it should already have one on.

Post December 2019 cars had this modified filter fitted because of this problem.

Clearly as we know, in all our cases that have had a new modified filter fitted, the oil ash issue is not fixed.

Have you contacted Porsche to raise a case on the grounds that this is a known manufacturing defect and they need to fix the car.

If you need any assistance please contact us directly on 07769 590119, we are collecting data on these faulty cars.

Regards
Dave

 

[JohnCRS]

Hi Dave

I look at the K221 and K230 zero readings on OldBiddy's post above and I read about the zero readings in D18PHN's post and wonder if some of these engineers are not understanding the reporst.