...another 300 miles whilst waiting for my appointment at the garage, but the light is still on.
Garage now diagnose:
2 fault codes stored -
31103 - SCR NOx Catalyst Bank 1
P20EE 00 [039] - Efficiency too Low
and
33262 - Reductant System Performance Bank 1
P204F 00 [096] - Malfunction
Garage...
Ok, this explains why at VW no faults were present - the fault was "expired" already at 9870 km.
Do you have an idea what kind of driving you were doing at 12:38:57 - at the moment of the fault surfaced.
Below a sample of my fault log & snapshot of recorded engine parameters at the moment of...
Thank you. No need for VIN's last digits.
31103 is just VW's own code for P20EE, thus only 1 fault there. Anyways, there is an engine software update (version 6166) available for your CXHA engine. The update should cure false alarms of this fault - among other things. The trick is to inject some...
...about mechanical stuff so it worried me all the way home and I plugged Carista in, it showed two engine / exhaust related faults - P20EE and 31103 (along with 4 others, more of which later maybe!). FWIW Ad Blue was topped off about 600 miles ago.
I plan on calling AA Assist later this...
Cleared fault codes:
P20EE & 31103.
Think this is the 5th time this or adblue has come up in an 18 month ownership. VW haven’t really said much every other time they’ve cleared them and gave me 8 free adblue refills. Getting slightly annoying now.
Any ideas on solutions?
Our van has ongoing issues with P20EE / 31103 errors. It's done the adblue range and no restart warning thing once too, but that went away by itself.
VW have already updated the software and replaced 'something' (they mentioned glow plugs, but I don't see how that's related!) under warranty...
...exactly, thanks.
I was curious about your van's engine software version because the recent software update should have eliminated fault P20EE (31103). That's the reason why I'm chasing P20EE faults around the Forum. So far no P20EE faults from new software....
"Fortunately" your engine...
...difference in how the van is performing.
key codes are P20EE - SCR NOx catalysts efficiency below threshold bank one, and the associated 31103.
Given the lack of any impact I have elected to reset the codes and keep a watching brief.
It now seems that the same codes are flashing up at...
@Jfoz i have had the same 31103 fault code on my van. The diagnosis was to change the NOx sensor, which, as my van was out of warranty, I paid for £680. The light came back on.
Before you go spending money on anew NOx sensor, make sure they check to se if your van has had the latest VW adblue...
...Index of current engine mode: 0
Index of next requested engine mode: 0
Index of engine target mode: 0
31103 - SCR NOx Catalyst Bank 1
P20EE 00 [100] - Efficiency too Low
Intermittent - Not Confirmed - Tested Since Memory Clear...
Thank you for sharing, really appreciated! Yes, indeed early versions of Carista didn't report the version.
The reason (one of them) why I'm snooping around Forum is that sometimes the update hasn't been a "descendant" of the initial software. Although it was the case with yours "04L906056KG"...
I have exacted the same fault code and problem, I’ve read all the forums I cannot determine whether it’s a Nox sensor fault, a def injector problem crystallised adblue, van is 2017 with only 31k miles. It’s had spender map but the problem only started in he recent cold period, has anyone any...
...So I'm hopeful that the faults in the early logs were remnants from before the engine update. The updated engine shouldn't produce the fault 31103 at all normally. Also false alarms of the fault 33262 should now be gone. I'm definitely interested to hear how it goes on with these faults, so...
...try to catch the following data from engine. I'm trying to estimate if they didn't clear the faults when engine software was updated - as the 31103 should not happen any more, not 121 times anyway.
IDE00584 Distance driven since erasing DTC memory
IDE00585 Dist. driven with exh...
Yes it is a 2017 Kombi. I bought the van maybe 6 weeks ago. I didn't have it at 106k. Any idea why it may have been updated and the 31103 left un-updated?
I'll plug VCDS in in the and report back with the findings. Also, no need to apologise. Any help is very much appreciated.
...bit. By looking the other components I'm assuming it's actually?
WV1ZZZ7HZHH***** thus N1 class (=panel van/Kombi) and model year 2017.
Fault 31103 indicates elevated NOx level - which was an annoying issue. However, recent engine software should have taken care of that issue. The update...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.