Technical Ducato P0401 P0402 P0236 P0238 and limp mode its 2017 Euro 6, EGR changed, What do I check next

[Camper1]

from a post by @Poperon
After market catalysts DPF's manufactured in Mansfield

Manufacturer of aftermarket hot end emissions products

BM Catalysts is Europe’s leading manufacturer of aftermarket hot end emissions products, using best in class practices and materials.

www.bmcatalysts.co.uk

Not a full range, Ive put in a request for info on Ducato models. They have info on earlier models but not euro 6

I found on after market as well but not available currently it was for 3250EUR https://www.autoricambi.sk/katalyzator-fiat-ducato-2016-2022-2-3d-p95505/

 

[Masztiff]

Hello
After solved the p401 Problem with Ecu Egr Off and Tuned Software the car was amazing and drive 50.000 km without problem.Now Came the p2200-15 Nox sensor code and change to new but didnt change anything.The check engine light come up within 200 km.Once the check engine light come up once light off..The fiat Master give me tipp the problem not the nox the problem the exhaust temp sensors or dpf.How can i log work or no ? What is the temperature ranges in good worikng shape ?

 

[theoneandonly]

An example with the same error message shows Intermittent shorting to ground.
At end of thread

2018 Ducato nox sensor code | FIAT Ducato

Hi everyone Im wondering if anyone has come across a problem I have, I have a 2018 Fiat ducato 2.3 engine code F1AGL411D which is coming up p2200 nox sensor open or short circuit. The van does not have a nox sensor fitted and ive checked with fiat and they do not list one for my vehicle...

www.fiatforum.com

A good engine example of cat dpf temperature results

 

[Masztiff]

Tonight i make log and the Pre Catalyst Temprature go down from 600 Celsius to -15 so the problem cause the Pre Catalyst Temperature sensor. Anyone can write me these sensor exactly name or Part Number ? Engine: F1AGL411D Twin Egr.

 

[Smudger55]

@Fredastaire, @bax in kent & @Oneandonly

Hooray, MHome is now back on drive.
Great feeling driving it again. We can now get ready for our trip next Friday.

Picture of old DPF below, much bigger than i expected. And its heavy!!!

 

[Fredastaire]

@Fredastaire, @bax in kent & @Oneandonly

Hooray, MHome is now back on drive.
Great feeling driving it again. We can now get ready for our trip next Friday.

Picture of old DPF below, much bigger than i expected. And its heavy!!!
View attachment 416292

Hi Smudger, good to hear you are back up and running. May I ask what all the labels are on the DPF? Are they stickers from all the replacement parts? Did you get any receipts giving a list of parts fitted. I just wondering if the rest of us can learn something.

 

[Smudger55]

Hi Smudger, good to hear you are back up and running. May I ask what all the labels are on the DPF? Are they stickers from all the replacement parts? Did you get any receipts giving a list of parts fitted. I just wondering if the rest of us can learn something.

Hi Fredastaire,

Not sure about labels but I will get a list of work done in the New year and will share it with you. Cheers and Merry Xmas.

 

[Fredastaire]

Hi Fredastaire,

Not sure about labels but I will get a list of work done in the New year and will share it with you. Cheers and Merry Xmas.

@Smudger55 I've just sent a pm. Rgds

 

[Baz in Kent]

Hi Fredastaire,

Not sure about labels but I will get a list of work done in the New year and will share it with you. Cheers and Merry Xmas.

I’d also be interested in seeing which parts you’ve had replaced. I assume you have a 2-year parts and labour warranty, how will you evidence this for any buyer? (I have the same concern).

Cheers.

 

[Smudger55]

I’d also be interested in seeing which parts you’ve had replaced. I assume you have a 2-year parts and labour warranty, how will you evidence this for any buyer? (I have the same concern).

Cheers.

Hi Baz in Kent, of course I will send you any details I have about parts replaced.
I wil clarify warranty in the New year, I've not paid for the labour yet so will seek reassurance and documentation then. Like you selling has become a worry, in the spring after MOT and habitation check will have decided what to do.

 

[Masefield]

Hello everyone. I’m new to this forum and this is my first post so please bear with me.

I have a 2018 (I think) Euro 6b, non-Adblue Ducato 2.3 in which I have done around 15000 miles. For the first time, a couple of thousand miles ago, the MIL came up and the van went into limp mode. It hasn’t happened since although I’ve the ! yellow warning light on a couple of times.

Digging around I came across this forum and this thread in particular which I’ve read with interest. So I asked Father Christmas for a MultiEcuScan which I’ve been messing around with for the past couple of days.

The first thing to say is I’m running software version 0028 and I don’t have any of the codes discussed on here so perhaps I don’t have a problem? But I do have a two error codes:

P0203-13 Cylinder 3 injector Open circuit Intermittent
P250A-38 Engine oil level sensor Signal Frequency incorrect Intermittent

For both of these codes it says “Dashboard warning light was not activated for this fault” but as there are no other faults and the MIL came up I’m puzzled.

I should also say my exhaust looks clean and the DPF regenerates on average every 500 km at an average temperature of 613 C and for an average of 428 seconds. It has “Normal clogging”

Below are some plots of some engine data from a run I did a couple of days ago looking at some of the important parameters mentioned in this thread. First the journey and engine revs:

Then some charts of various engine parameters:

So my assessment of this data is:

• There seems to be an injector problem as evidenced by the fault code and some correction values being on the high side.
• The LPEGR position seems to, on the whole, match the target position and has a maximum value of about 4.2 mm
• The LPEGR temperature reached a maximum of 110 C.

I’d be interested to hear the opinions of others here on the data. In particular is there anything in the data that suggests I have a developing problem. Also, do people recommend that I should get my software updated to the lasted 0032 version.

 

[Smudger55]

Hello everyone. I’m new to this forum and this is my first post so please bear with me.

I have a 2018 (I think) Euro 6b, non-Adblue Ducato 2.3 in which I have done around 15000 miles. For the first time, a couple of thousand miles ago, the MIL came up and the van went into limp mode. It hasn’t happened since although I’ve the ! yellow warning light on a couple of times.

Digging around I came across this forum and this thread in particular which I’ve read with interest. So I asked Father Christmas for a MultiEcuScan which I’ve been messing around with for the past couple of days.

The first thing to say is I’m running software version 0028 and I don’t have any of the codes discussed on here so perhaps I don’t have a problem? But I do have a two error codes:

P0203-13 Cylinder 3 injector Open circuit Intermittent
P250A-38 Engine oil level sensor Signal Frequency incorrect Intermittent

For both of these codes it says “Dashboard warning light was not activated for this fault” but as there are no other faults and the MIL came up I’m puzzled.

I should also say my exhaust looks clean and the DPF regenerates on average every 500 km at an average temperature of 613 C and for an average of 428 seconds. It has “Normal clogging”

Below are some plots of some engine data from a run I did a couple of days ago looking at some of the important parameters mentioned in this thread. First the journey and engine revs:

View attachment 416668

Then some charts of various engine parameters:






View attachment 416695
View attachment 416689
View attachment 416690
View attachment 416692
View attachment 416693
So my assessment of this data is:

• There seems to be an injector problem as evidenced by the fault code and some correction values being on the high side.
• The LPEGR position seems to, on the whole, match the target position and has a maximum value of about 4.2 mm
• The LPEGR temperature reached a maximum of 110 C.

I’d be interested to hear the opinions of others here on the data. In particular is there anything in the data that suggests I have a developing problem. Also, do people recommend that I should get my software updated to the lasted 0032 version.

Hi Masefield as you will read from posts above, I've had the repair for the problem, costing around £6k, with Fiat paying for all parts costing up to £5k. I received really helpful guidance from people on this thread. I not mechanically minded and did not have the scanning software, obviously too late. I am sure someone will advise you re you readings. I had done 13000 miles when it started, just out of warranty. See what others say but at some stage you may want to register problem with Fiat motorhome assurance. They will advise you to go to a Fiat Service centre. If your problem becomes the same as mine, then I kept feeding the centre manager with all the information I had gleaned who helped in Fiat agreeing to paying most of the costs. Fiat have a sliding scale of criteria to which they will then sanction funding, mine fortunately fell into that category : fiat ducato 2.3, no ad blue, engine built between 2015-2018, I think, possibly also mileage and even where engine was built, factory in Italy. Good luck

 

[theoneandonly]

Digging around I came across this forum and this thread in particular which I’ve read with interest. So I asked Father Christmas for a MultiEcuScan which I’ve been messing around with for the past couple of days.

The first thing to say is I’m running software version 0028 and I don’t have any of the codes discussed on here so perhaps I don’t have a problem? But I do have a two error codes:

P0203-13 Cylinder 3 injector Open circuit Intermittent
P250A-38 Engine oil level sensor Signal Frequency incorrect Intermittent


So my assessment of this data is:

• There seems to be an injector problem as evidenced by the fault code and some correction values being on the high side.
• The LPEGR position seems to, on the whole, match the target position and has a maximum value of about 4.2 mm
• The LPEGR temperature reached a maximum of 110 C.

I’d be interested to hear the opinions of others here on the data. In particular is there anything in the data that suggests I have a developing problem. Also, do people recommend that I should get my software updated to the lasted 0032 version.

First comment
well done Father christmas, Multiecuscan a good choice
Good choices of initial data.
The LPEGR valve can open upto a max of 4.7 , yours does control with values down to 2mm the LPEGR cooler temperature upto 110C is OK but I would like to see a 20min run down the Motorway at 60mph or sort of constant 2000-2500 rpm (120 happy as larry) Clean exhaust good.
Version 28 same as i'm running, ive been putting off updating for a few reasons. If it was bellow 28 i would say change now.
Injector correction values, the sum of corrections is good and bellow limmit. The individual values together with a code say something is not quite right.
The transition from a Good engine to troubles brewing is the difficult bit to judge. Ive been lucky to get access to bad engine data but Good engine has been mine.
My first suggestion is to do the test run of a warm engine then 20min run down the Motorway at 60mph. Add DPF differential sensor and cat /DPF temperatures to your list of parameters
Then address injector issue,
1: use a injector cleaner in the fuel, i use Liqui Moly diesel purge.
2: Remove injectors for testing by diesel specialist and or replacement
I did 1 then continually monitor, i have one injector that gives me ? concerning variation but no codes
others may suggest jumping straight to 2
Thats enough for now

 

[Fredastaire]

I'm just noting the latest from @Masefield , I did a run in last days, @theoneandonly has my CSV files from it. I have used Millers Dieselmax injector cleaner every tankfull , please note that I also only fill up with the high spec diesel Ultra.

 

[Masefield]

Hi Masefield as you will read from posts above, I've had the repair for the problem, costing around £6k, with Fiat paying for all parts costing up to £5k. I received really helpful guidance from people on this thread. I not mechanically minded and did not have the scanning software, obviously too late. I am sure someone will advise you re you readings. I had done 13000 miles when it started, just out of warranty. See what others say but at some stage you may want to register problem with Fiat motorhome assurance. They will advise you to go to a Fiat Service centre. If your problem becomes the same as mine, then I kept feeding the centre manager with all the information I had gleaned who helped in Fiat agreeing to paying most of the costs. Fiat have a sliding scale of criteria to which they will then sanction funding, mine fortunately fell into that category : fiat ducato 2.3, no ad blue, engine built between 2015-2018, I think, possibly also mileage and even where engine was built, factory in Italy. Good luck

@Smudger55 I feel your pain. My van had a two year warranty that expired over 12 months ago so I'm not sure how sympathetic Fiat would be to my case as I don't actually have the problem yet but perhaps your idea to register with them is a good one.

First comment
well done Father christmas, Multiecuscan a good choice
Good choices of initial data.
The LPEGR valve can open upto a max of 4.7 , yours does control with values down to 2mm the LPEGR cooler temperature upto 110C is OK but I would like to see a 20min run down the Motorway at 60mph or sort of constant 2000-2500 rpm (120 happy as larry) Clean exhaust good.
Version 28 same as i'm running, ive been putting off updating for a few reasons. If it was bellow 28 i would say change now.
Injector correction values, the sum of corrections is good and bellow limmit. The individual values together with a code say something is not quite right.
The transition from a Good engine to troubles brewing is the difficult bit to judge. Ive been lucky to get access to bad engine data but Good engine has been mine.
My first suggestion is to do the test run of a warm engine then 20min run down the Motorway at 60mph. Add DPF differential sensor and cat /DPF temperatures to your list of parameters
Then address injector issue,
1: use a injector cleaner in the fuel, i use Liqui Moly diesel purge.
2: Remove injectors for testing by diesel specialist and or replacement
I did 1 then continually monitor, i have one injector that gives me ? concerning variation but no codes
others may suggest jumping straight to 2
Thats enough for now

@theoneandonly Thanks for the observations and suggestions. I don't understand properly what the "injector correction is" - is the ECU aware by some means how much diesel each injector is actually delivering and adjusts the amount up and down to achieve some nominal amount. Looking at my csv file there are times when the correction values are all zero - what's happening at that point:

One further observation I have is that for the last few months when I lift my foot off the accelerator after reaching the crest of a hill I sense a hesitation in the engine. Quite subtle but definitely a change. I'll try and take the van out this week for the run you suggested.

I'm just noting the latest from @Masefield , I did a run in last days, @theoneandonly has my CSV files from it. I have used Millers Dieselmax injector cleaner every tankfull , please note that I also only fill up with the high spec diesel Ultra.

@Fredastaire I confess I've always bought fuel based on price, assuming they were all the same. Paying a few more pence per L would make sense if was to avert the need for the type of expense @Smudger55 has had to bear. Can you recommend a brand and do you now how its composition values wrt supermarket types?

 

[Fredastaire]

@Masefield , I've been going through this saga for in excess of 18 months, I've spoken with many people by email, text and telephone. It was clear early on that injectors condition is critical. I took the decision to use 'ultra' type diesel plus the millers because I'm scared of the risks of more damage. I have conversed with Fiat main dealer mechanics in other countries who know it's a dirty burning engine and say beware the injectors. I use Jet diesel 9 out of 10 times ie wherever possible. As I only do 6k miles per year the extra pence doesn't matter.

 

[Smudger55]

@Masefield , I've been going through this saga for in excess of 18 months, I've spoken with many people by email, text and telephone. It was clear early on that injectors condition is critical. I took the decision to use 'ultra' type diesel plus the millers because I'm scared of the risks of more damage. I have conversed with Fiat main dealer mechanics in other countries who know it's a dirty burning engine and say beware the injectors. I use Jet diesel 9 out of 10 times ie wherever possible. As I only do 6k miles per year the extra pence doesn't matter.

@Fredastaire, that useful to know. Cheers Smudger55

 

[Masefield]

@Masefield , I've been going through this saga for in excess of 18 months, I've spoken with many people by email, text and telephone. It was clear early on that injectors condition is critical. I took the decision to use 'ultra' type diesel plus the millers because I'm scared of the risks of more damage. I have conversed with Fiat main dealer mechanics in other countries who know it's a dirty burning engine and say beware the injectors. I use Jet diesel 9 out of 10 times ie wherever possible. As I only do 6k miles per year the extra pence doesn't matter.

@Fredastaire , do you expect the ultra type diesel to both clean already dirty/damaged injectors and prevent them reaching that state in the further or do you need to use the additive as well to achieve this goal?

 

[Fredastaire]

@Masefield that's a good question which I'm unable to answer as I just don't know. I'm forever keeping fingers crossed, (and frequently using MES to keep an eye on what's going on)

 

[theoneandonly]

Regularly do a test run and monitor:
1 Injector variation
2 LPEGR Actual position
3 LPEGR cooler temperature
4 Differential DPF sensor
5 Regen history
6 Physically inspect the exhaust pipe
7 Regularly use injector cleaner.

As to fuel additives i'm agnostic. just dont put more than advertised as they can contaminate Lambda sensors.
Deciding when to test injectors I just don't know.