Hi, I have a 2019 Ducato Roller Team motorhome which has recently been serviced. On the way home it went into Limp mode with a amber engine check light up. I took it to a garage and fault codes are: P0401 - 61 (EGR high pressure valve blocked closed - signal calculation failure). Also P0402 - 61 (Air tracking control system). I am not sure of my exact Ducato model but the VIN number is ZFA25000002J6552. Engine type: F1AGL411D and engine number 3389301. The van is ex UK rental but now in New Zealand and I am not sure whether it is euro 5 or 6. It is not Adblu, so must be a 130 that was produced before Adblu. Any clues as to the exact model would be helpful thanks in chasing the EGR problem. I know it has 2 EGR valves (high pressure and Low pressure). The garage also said there was excessive build up of soot at the DPF. Don’t know how they saw this as I am pretty sure they haven’t taken it apart. Any clues would be appreciated, thanks
Technical Ducato EGR problem
- Thread starter wvance2
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Technical Ducato EGR problem
theoneandonly
Established member
@wvance2
Unfortunately it's welcome to the 401 club. It's a well known problem
The first recommendation is to get a copy of multiecuscan on a laptop, this can read Fiat specific codes.
www.fiatforum.com
www.fiatforum.com
www.fiatforum.com
Sorry for the amount of reading but it should help wasting loads of time and money.
The dpf reading would have been via the OBD2 Port diagnostic port
Unfortunately it's welcome to the 401 club. It's a well known problem
The first recommendation is to get a copy of multiecuscan on a laptop, this can read Fiat specific codes.
Ducato - Ducato twin EGR Engine with P0401 Code (2016 to 2019)
This thread is for the general discussion of the Guide Ducato twin EGR Engine with P0401 Code (2016 to 2019). Please add to the discussion here. theoneandonly submitted a new guide: Ducato twin EGR Engine with P0401 Code (2016 to 2019) This does not refer to earlier single EGR systems or to...
www.fiatforum.com
Ducato P0401 P0402 P0236 P0238 and limp mode its 2017 Euro 6, EGR changed, What do I check next | FIAT Ducato
Van is 2017 Euro 6 bought new , now with 26K on clock. Problems started this summer with dash engine light and code P0401 appeared on a country lane at low speed going into a corner so it would be low airflow going in to the engine as it wasn’t ‘working’. Bought FCR and cleared fault, happened...
www.fiatforum.com
Tutorial to Measure specific Engine PIDs (Parameter ID) and Save data for analysis.
This was originally written to help one person with his Ducato totally new to MES to start saving data. it is not an exhaustive manual nor intended to be. Tutorial to Measure specific Engine PIDs (Parameter ID) and Save data for analysis. Open...
www.fiatforum.com
Sorry for the amount of reading but it should help wasting loads of time and money.
The dpf reading would have been via the OBD2 Port diagnostic port
- Joined
- Nov 3, 2014
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- 312
Hi and welcome
Your engine is Euro 6. Between 2016 and 2019 Fiat fitted a "Twin EGR" system which did not require Adblue. After 2019 they went over to Adblue.
Unfortunately, faults with the EGR systems on this particular engine are well known. Due to the inaccessiblity at the back of the engine, changing components involves considerable dismantling and therefore high labour costs.
The fault codes are only a guide, and this has led some dealers unfamiliar with the whole picture to simply replace components without getting to the root of the problem. I can only suggest that you (or your chosen garage) read some of the other threads on this forum by owners of these vehicles. Hopefully this will allow your problem to be fixed in "one hit" rather than being a long learning curve.
Your engine is Euro 6. Between 2016 and 2019 Fiat fitted a "Twin EGR" system which did not require Adblue. After 2019 they went over to Adblue.
Unfortunately, faults with the EGR systems on this particular engine are well known. Due to the inaccessiblity at the back of the engine, changing components involves considerable dismantling and therefore high labour costs.
The fault codes are only a guide, and this has led some dealers unfamiliar with the whole picture to simply replace components without getting to the root of the problem. I can only suggest that you (or your chosen garage) read some of the other threads on this forum by owners of these vehicles. Hopefully this will allow your problem to be fixed in "one hit" rather than being a long learning curve.
Thanks for that. Will start reading!@wvance2
Unfortunately it's welcome to the 401 club. It's a well known problem
The first recommendation is to get a copy of multiecuscan on a laptop, this can read Fiat specific codes.
Ducato - Ducato twin EGR Engine with P0401 Code (2016 to 2019)
This thread is for the general discussion of the Guide Ducato twin EGR Engine with P0401 Code (2016 to 2019). Please add to the discussion here. theoneandonly submitted a new guide: Ducato twin EGR Engine with P0401 Code (2016 to 2019) This does not refer to earlier single EGR systems or to...
Ducato P0401 P0402 P0236 P0238 and limp mode its 2017 Euro 6, EGR changed, What do I check next | FIAT Ducato
Van is 2017 Euro 6 bought new , now with 26K on clock. Problems started this summer with dash engine light and code P0401 appeared on a country lane at low speed going into a corner so it would be low airflow going in to the engine as it wasn’t ‘working’. Bought FCR and cleared fault, happened...
Tutorial to Measure specific Engine PIDs (Parameter ID) and Save data for analysis.
This was originally written to help one person with his Ducato totally new to MES to start saving data. it is not an exhaustive manual nor intended to be. Tutorial to Measure specific Engine PIDs (Parameter ID) and Save data for analysis. Open...
Sorry for the amount of reading but it should help wasting loads of time and money.
The dpf reading would have been via the OBD2 Port diagnostic port
Thank you. Good advice
Shugzter
New member
Hi I have the same roller team van, 2019 same engine, same codes, I have a warranty with mine so thought I would put it into fiat, they changed egr valve and charged me £1200 and the light came back on in 8 days, and just over 300 miles, can’t claim the money back of warranty as they said quite rightly, it’s been miss diagnosed, I’ve changed the air mass sensor at £105 but light has came on again, I’m hoping I can maybe get fiat Arnold Clark to refund the money, my van has done 50,000 . Please tell me you have yours fixed and what was it ? Thanks Hugh
theoneandonly
Established member
@Shugzter The first recommendation is to get a copy of multiecuscan on a laptop, this can read Fiat specific codes.
Then read first one at least for a P0401 changing the HPegr valve is the first step in a long expensive trail.
www.fiatforum.com
www.fiatforum.com
www.fiatforum.com
Sorry for the amount of reading but it should help wasting loads of time and money.
PS is it an auto or manual.
It may be appropriate to add your situation to the 2nd thread and get more specific attention.
Then read first one at least for a P0401 changing the HPegr valve is the first step in a long expensive trail.
Ducato - Ducato twin EGR Engine with P0401 Code (2016 to 2019)
This thread is for the general discussion of the Guide Ducato twin EGR Engine with P0401 Code (2016 to 2019). Please add to the discussion here. theoneandonly submitted a new guide: Ducato twin EGR Engine with P0401 Code (2016 to 2019) This does not refer to earlier single EGR systems or to...
Ducato P0401 P0402 P0236 P0238 and limp mode its 2017 Euro 6, EGR changed, What do I check next | FIAT Ducato
Van is 2017 Euro 6 bought new , now with 26K on clock. Problems started this summer with dash engine light and code P0401 appeared on a country lane at low speed going into a corner so it would be low airflow going in to the engine as it wasn’t ‘working’. Bought FCR and cleared fault, happened...
Tutorial to Measure specific Engine PIDs (Parameter ID) and Save data for analysis.
This was originally written to help one person with his Ducato totally new to MES to start saving data. it is not an exhaustive manual nor intended to be. Tutorial to Measure specific Engine PIDs (Parameter ID) and Save data for analysis. Open...
Sorry for the amount of reading but it should help wasting loads of time and money.
PS is it an auto or manual.
It may be appropriate to add your situation to the 2nd thread and get more specific attention.
Last edited:
theoneandonly
Established member
woops wrong shortcut
www.fiatforum.com
Ducato twin EGR Engine with P0401 Code (2016 to 2019)
This does not refer to earlier single EGR systems or to later AdBlu SCR engines. Note this is a guide and not definative. It is up to you to make decissions. It is the result of my investigations of data from many contributors and discussion with...
www.fiatforum.com
Fredastaire
Member
- Joined
- Dec 19, 2017
- Messages
- 421
- Points
- 128
@Shugzter ive added notes for you on the main P0401 thread on here .
www.fiatforum.com
Ducato P0401 P0402 P0236 P0238 and limp mode its 2017 Euro 6, EGR changed, What do I check next | FIAT Ducato
This entire thread was started by me. . The end result of the fiasco that stops the van running is that the LPEGR cooler blocks with soot. Inside the LPEGR housing is a butterfly throttle that closes off the fresh clean air from the air filter in a controlled manner such that the turbo has to...
www.fiatforum.com
theoneandonly
Established member
@Shugzter
Read the service news sheet and you will see that replacement of hpegr valve is normal practice (if generaly incoorect) so not a misdiagnosis. This may help getting assistance from the warranty. The next step is a return to fiat pro dealership and try to get input from fiat, its a know problem. Yove read some of the main thread read the lot and use that as the main comunication thread.
Read the service news sheet and you will see that replacement of hpegr valve is normal practice (if generaly incoorect) so not a misdiagnosis. This may help getting assistance from the warranty. The next step is a return to fiat pro dealership and try to get input from fiat, its a know problem. Yove read some of the main thread read the lot and use that as the main comunication thread.
Dave Ducato
Member
Picture: Mine at 7,000 miles. 2.3 2019 not adblue. Under warranty. Engine management light kept coming up, went in 7 times to get fixed, Fiat main dealer absolutely useless (no longer a main dealer since last month). Fiat were also horrendous at dealing with the issue too. Eventually they fixed it, claimed it was a faulty injector putting out too much fuel, that then ruined the exhaust EGR filter in the exhaust. Not sure I'd trust a word either party said.
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theoneandonly
Established member
@Dave Ducato
First question, is it manual or conformatic?
If they have really fixed it i would be interested in your bill/ itemised list of parts and what was actually done. This is not an uncomman problem. Start with this link.
www.fiatforum.com
I wont frighten you with the long thread yet, pherhaps i leave that to @Fredastaire .
The crux of the problem is a combination poor ecu programming poor components (injectors) and sometimes inccorect components eg MAP sensor leading to overfueling and poor regeneration cracked DPF leading to sooting of exhaust and blocking of LPEGR cooler.
www.fiatforum.com
Do you have any info on error codes or software versions, any detailed stuff to help with the collective knowledge.
First question, is it manual or conformatic?
If they have really fixed it i would be interested in your bill/ itemised list of parts and what was actually done. This is not an uncomman problem. Start with this link.
Ducato twin EGR Engine with P0401 Code (2016 to 2019)
This does not refer to earlier single EGR systems or to later AdBlu SCR engines. Note this is a guide and not definative. It is up to you to make decissions. It is the result of my investigations of data from many contributors and discussion with...
www.fiatforum.com
The crux of the problem is a combination poor ecu programming poor components (injectors) and sometimes inccorect components eg MAP sensor leading to overfueling and poor regeneration cracked DPF leading to sooting of exhaust and blocking of LPEGR cooler.
Ducato twin EGR Engine with P0401 Code (2016 to 2019)
This does not refer to earlier single EGR systems or to later AdBlu SCR engines. Note this is a guide and not definative. It is up to you to make decissions. It is the result of my investigations of data from many contributors and discussion with...
www.fiatforum.com
Shugzter
New member
Would of changed hp egr myself had it out and cleaned it before it went in, but they haven’t put down it was faulty on the diagnostic therefore the warranty won’t pay out the £1200 I can’t afford to put it back in for them to throw parts at it , that’s not the right way to fix something, at £115 plus vat an hour
but thanks for your suggestion
Dave Ducato
Member
Hi Theoneandonly,@Dave Ducato
First question, is it manual or conformatic?
If they have really fixed it i would be interested in your bill/ itemised list of parts and what was actually done. This is not an uncomman problem. Start with this link.
I wont frighten you with the long thread yet, pherhaps i leave that to @Fredastaire .Ducato twin EGR Engine with P0401 Code (2016 to 2019)
This does not refer to earlier single EGR systems or to later AdBlu SCR engines. Note this is a guide and not definative. It is up to you to make decissions. It is the result of my investigations of data from many contributors and discussion with...
The crux of the problem is a combination poor ecu programming poor components (injectors) and sometimes inccorect components eg MAP sensor leading to overfueling and poor regeneration cracked DPF leading to sooting of exhaust and blocking of LPEGR cooler.
Do you have any info on error codes or software versions, any detailed stuff to help with the collective knowledge.Ducato twin EGR Engine with P0401 Code (2016 to 2019)
This does not refer to earlier single EGR systems or to later AdBlu SCR engines. Note this is a guide and not definative. It is up to you to make decissions. It is the result of my investigations of data from many contributors and discussion with...
The vehicle is a Comfortmatic model. As the vehicle was done under warrantee they never handed me any documentation at all so all I could do was listen to the service girl on reception who was totally clueless as to how the vehicles work. I know, not very helpful at all.
theoneandonly
Established member
In your situation the Fiat Service notes states that replacing the HPEGR is the first step in diagnosing the problem. So that would be the way i would play the warrenty people. What codes did it initially show? is your dealer ARnold clark a Fiat professional outfit. if so and your codes were p236,238,401 or 402 then they should have been working to the service sheet ServiceNews_10_023_19. Pherhaps involve fiat italy directly @Baz in Kent @FredastaireWould of changed hp egr myself had it out and cleaned it before it went in, but they haven’t put down it was faulty on the diagnostic therefore the warranty won’t pay out the £1200 I can’t afford to put it back in for them to throw parts at it , that’s not the right way to fix something, at £115 plus vat an hour
theoneandonly
Established member
The assistance from Fiat Proffessional services in the UK varies so much. Try asking for a written detailed list of works and parts and how long these parts and work is garanteed for? A member here had need to use that additional garranty.
Ps thanks for replying
Dave Ducato
Member
The Fiat Professional dealer has since lost the franchise (approx a month back), not utterly surprising as their level of competence and reliability was shameful. Getting any useful info from them about a repair nearly 2 years ago is now pretty doubtful. I dreaded every time I went there.
theoneandonly
Established member
OldWomble
New member
We had this same problem and our garage mapped out the egr valve. However, we only knew of 1 valve at that point. Now (after 6 months) I’ll getting a nox fault code but I’m told this engine does not have a nox filter.
Any ideas?
Any ideas?