My 2018 Ducato has software version V25
Technical Ducato P0401 P0402 P0236 P0238 and limp mode its 2017 Euro 6, EGR changed, What do I check next
- Thread starter Fredastaire
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Technical Ducato P0401 P0402 P0236 P0238 and limp mode its 2017 Euro 6, EGR changed, What do I check next
@theoneandonly
I was going to get a copy of my setup next week for you, but having had to have an emergency gas engineer out, Ouch expensive, it will be a little delayed.
I can remember back in 2019 I had the safety recall from Fiat for the bulkhead brake pipes. Whilst in the dealership at the time (Luton) updated all the software free of charge (Engine and Comfotmatic)
I was going to get a copy of my setup next week for you, but having had to have an emergency gas engineer out, Ouch expensive, it will be a little delayed.
I can remember back in 2019 I had the safety recall from Fiat for the bulkhead brake pipes. Whilst in the dealership at the time (Luton) updated all the software free of charge (Engine and Comfotmatic)
I took the motorhome in to Fiat Professional this morning to begin the investigation tomorrow. They are to collect the info then involve a Fiat Technician to decide the way forward. Still no offer of financial help.
I ran Template 4 on the way up - only 7-8 miles but hopefully long enough to collect some info. I wiped out the exhaust before travelling, then again on arrival and showed that bit of paper towel to FP. They seemed surprised tho I have been telling them about this, and my fear of soot in the engine oil, for months.
T4 attached.
I ran Template 4 on the way up - only 7-8 miles but hopefully long enough to collect some info. I wiped out the exhaust before travelling, then again on arrival and showed that bit of paper towel to FP. They seemed surprised tho I have been telling them about this, and my fear of soot in the engine oil, for months.
T4 attached.
It seems as though I'm back again. 
Following codes P0236 and P0238, a week ago the same codes appeared together with P0401 ahhhhhhhhhhhhhh
Following service/MOT today and investigation by Adam Morey, Portsmouth it appears it could be linked to EGR/DPF problems. Oh no!!!! For which I had an expensive repair. I posted back in 2022, I think.
They suggest however, I'll be better informed in the morning, that when I had the original repair, they might not have cleaned out the EGR cooler, which might be the cause of current problems.
You put your trust in these people and they let you down, excluding Simon.
Following codes P0236 and P0238, a week ago the same codes appeared together with P0401 ahhhhhhhhhhhhhh
Following service/MOT today and investigation by Adam Morey, Portsmouth it appears it could be linked to EGR/DPF problems. Oh no!!!! For which I had an expensive repair. I posted back in 2022, I think.
They suggest however, I'll be better informed in the morning, that when I had the original repair, they might not have cleaned out the EGR cooler, which might be the cause of current problems.
You put your trust in these people and they let you down, excluding Simon.
theoneandonly
Established member
Arrrgh Fu??It seems as though I'm back again.
Following codes P0236 and P0238, a week ago the same codes appeared together with P0401 ahhhhhhhhhhhhhh
Following service/MOT today and investigation by Adam Morey, Portsmouth it appears it could be linked to EGR/DPF problems. Oh no!!!! For which I had an expensive repair. I posted back in 2022, I think.
They suggest however, I'll be better informed in the morning, that when I had the original repair, they might not have cleaned out the EGR cooler, which might be the cause of current problems.
You put your trust in these people and they let you down, excluding Simon.
just checked your invoice you gave me with part numbers it includes a Heat exchanger part number 5802131785 i believe to beLPEGR cooler. So they charged someone for it even if it was Fiat. How can I help?
theoneandonly
Established member
Most as expected indicating LPEGR cooler issue. The HPEGR is fine working as expected.
You are due a regen pretty soon.
The injectors pass FIAT Limmis at idle
Well thats all I can say other than GOOD LUCK
Thanks @theoneandonly, is there anything in that (apart from blocked cooler indications) that would point to a cracked DPF?
theoneandonly
Established member
The sooty exhaust
Have you still got the service news? its also in the downloads section
maybe this is the first thing they need to do they have already replaced the HPEGR
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@Smudger55 How many miles have you done since your last repair?
Yes thanks, I do have the service news. They replaced the HPEGR on the last repair (Feb 24) not, so far, this time. They were about to check the injectors I believe. But in the service News that comes AFTER the DPF check.... I'm pretty sure they haven't done that.
theoneandonly
Established member
I dont think so either , because of the surprise to see a sooty exhaust
theoneandonly
Established member
It was october 2022 so just outside a two year warrenty Fiat should have given maybe within if @Smudger55 had allready taken it in for related eg turbo problems
MarcoWuerttemberger
Member
Thanks to everyone who helped me fix my problem. "theoneandonly" has looked at my newly recorded data and it all looks normal. I am so happy now! I hope everyone here gets their problems with the Ducato under control!
Cheers
Marco
Cheers
Marco
They have now (checked the DPF per the service news) and surprise, surprise, there's lots of soot
so they're on the hunt for a new DPF (not easily found).MarcoWuerttemberger
Member
call Augustin in Germany... everything in stock
Thanks for that Marco, I shall pass that on.
I found this on YouTube,I found it interesting to understand what the egr is achieving, and the LP circuit reducing 02 and increased temperature in cylinder to reduce nox .. and how when its not working correctly it's going to cause issues which for some of us we have !.
theoneandonly
Established member
@Ratfink you just about caught the regen but not fully, such is.
Have you any symtoms?
Is exhaust pipe clean or sooty?
At least we know regen gets to at least 635C with version 24
The LPegr valve is working as expected but temperatures are low until we get to set 3.
The turbo boost jumps about being lower or higher than desired. pherhaps a MAP that needs cleaning maybe not a problem at all.
The alternative is a Turbo solenoid that is slightly tired but not obviously dead.
Could all be acceptable if no obvious problems in use.
The injectors, HPEGR and O2 graphs OK
Have you any symtoms?
Is exhaust pipe clean or sooty?
At least we know regen gets to at least 635C with version 24
The LPegr valve is working as expected but temperatures are low until we get to set 3.
The turbo boost jumps about being lower or higher than desired. pherhaps a MAP that needs cleaning maybe not a problem at all.
The alternative is a Turbo solenoid that is slightly tired but not obviously dead.
Could all be acceptable if no obvious problems in use.
The injectors, HPEGR and O2 graphs OK
A big thank you to @theoneandonly for this analysis, I do not have any symptoms and the exhaust is very clean. Once I have done the cam belt I am getting a service and hopefully V32 software to keep it that way. When I check my mates van I think it will be a very different story.
