CheeseMonster
Member
I'm no expert hence this may be a stupid question so forgetting emissions:
Why can't the egr cooler be blocked off and the lpegr valve draw fresh air instead?
Technical Ducato P0401 P0402 P0236 P0238 and limp mode its 2017 Euro 6, EGR changed, What do I check next
- Thread starter Fredastaire
- Start date
Currently reading:
Technical Ducato P0401 P0402 P0236 P0238 and limp mode its 2017 Euro 6, EGR changed, What do I check next
Why can't the egr cooler be blocked off and the lpegr valve draw fresh air instead?
steve clark
Member
Might this fuse diagram help at all?
fuse-box.info
Steve
Fuse Box Diagram Fiat Ducato (2015-2018-..)
Fuse box diagram (location and assignment of electrical fuses) for Fiat Ducato (2015, 2016, 2018, 2018-..).
fuse-box.info
Steve
steve clark
Member
Or this one?
Still trying to copy and paste a .pdf file but I am unable to do so...
Watch this space...
Still trying to copy and paste a .pdf file but I am unable to do so...
Watch this space...
steve clark
Member
Or this online Chrysler resource... Does it cover FIAT models?
autopodaci.com
Pricing as below...
Chrysler EPC 5 | Snap-on EPC 5 for FCA | Chrysler PAIS 2022
Pricing as below...
| Chrysler Snap-on EPC 5 | |
| Date of update | 11/2021 |
|---|---|
| Price | 140 EURO |
| Download file size (packed / unpacked) | 35,7 GB / 37,5 GB |
| Install size | 150 GB |
| Languages | English, Deutsch, Espanol, Francais, Italiano, Portugues |
| Operating system (OS) compatibility | Windows 7 / 8 / 10 |
| Expiration | 2 years |
| Activation included | For 1 PC |
steve clark
Member
Here's an other online resource which might have what we need
If you are an Independent Repairer you should visit: www.technicalinformation.fiat.com
If you are an Independent Repairer you should visit: www.technicalinformation.fiat.com
steve clark
Member
Can a FIAT user/owner use this ePER as shown on the top line of the FIAT Forum? - seems to have stopped working in about 2005 or so...
metallus
New member
Hello,
I'm Alex from Germany and probably had the same problem a few weeks ago. I bought a used car. The car was from 2017 wih 110 KW and had run 130,000 km. The day I picked it up from the dealer I had the check engine light on the way back. The car also went into limp mode several times, but ran normally again after a restart. I couldn't read an error code myself.
The car went back to the dealer for repairs. I was told that the EGR was replaced. I didn't know then that this engine had 2 EGR installed. After picking it up again, the car ran 400 km without any problems. Then the check engine light came on again and the car went into limp mode.
Now I bought an OBD II adapter and read out the error P0238. Luckily I came across your forum while searching the internet. I did the soot test and my exhaust was completely sooty. After that, to be honest, I kind of panicked.
I suggested that the dealer return the car. The official Fiat Professional dealer has agreed, but has claimed that the fault is not related to the exhaust system. I rather think that he wanted to cover up the problem and hoped that the error would not appear again until after the warranty period. With your help, I was able to prevent worse. Thanks a lot for this. I wish everyone involved the best of luck in the future.
I'm Alex from Germany and probably had the same problem a few weeks ago. I bought a used car. The car was from 2017 wih 110 KW and had run 130,000 km. The day I picked it up from the dealer I had the check engine light on the way back. The car also went into limp mode several times, but ran normally again after a restart. I couldn't read an error code myself.
The car went back to the dealer for repairs. I was told that the EGR was replaced. I didn't know then that this engine had 2 EGR installed. After picking it up again, the car ran 400 km without any problems. Then the check engine light came on again and the car went into limp mode.
Now I bought an OBD II adapter and read out the error P0238. Luckily I came across your forum while searching the internet. I did the soot test and my exhaust was completely sooty. After that, to be honest, I kind of panicked.
I suggested that the dealer return the car. The official Fiat Professional dealer has agreed, but has claimed that the fault is not related to the exhaust system. I rather think that he wanted to cover up the problem and hoped that the error would not appear again until after the warranty period. With your help, I was able to prevent worse. Thanks a lot for this. I wish everyone involved the best of luck in the future.
theoneandonly
Established member
Simular to what @Cariou did
Ducato P0401 P0402 P0236 P0238 and limp mode its 2017 Euro 6, EGR changed, What do I check next | FIAT Ducato
Yesterday I had the software updated to v32 on our 2017 non Ab, Comfortmatic. I hope to pluck up the courage and do some logging in the coming months, I'll forward my results to @theoneandonly .
www.fiatforum.com
theoneandonly
Established member
Hope you can get it sorted under warranty, from this thread you can see it could be serious amounts of money and time. Some parts may be on back order. As another member has noticed it is a bigger problem than we think, given the number of second hand lpegr coolers on ebay
metallus
New member
Good morning,
I returned the car to the dealer. The risk was just too big for me. Now I am looking for a Euro 5 vehicle.
Greetings Alex
I returned the car to the dealer. The risk was just too big for me. Now I am looking for a Euro 5 vehicle.
Greetings Alex
theoneandonly
Established member
Seen by some as a good choice. If you can cope with the city restrictions.
Fredastaire
Member
- Joined
- Dec 19, 2017
- Messages
- 420
- Points
- 128
@Shugzter this is the main thread for the Ducato P0401 problem. I personally started this thread, I am a victim of this fiasco, you will also note @theoneandonly he is the reference boffin for analysing data, between the two of us we probably know 98% about the whole affair.
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please can I recommend that you read each and every page so you know the details.
.
You then need to wipe out your silencer tailpipe internally with pieces of kitchen towel, take it for a good run and re-wipe it out. if the kitchen towel comes out sooty then your DPF is internally cracked / burnt.
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the beginning is the problematic early software caused overfuelling, if you get away light then it will have cracked the DPF (circa £3300 plus vat); the soot passing the cracked element will have blocked the LP EGR Cooler, (say £700 plus vat), all plus one day labour at a Fiat dealer as you also need the latest engine software v28 or v32, (we don't know when Fiat choose 28 or 32).
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in worst case the original software burns one or more injectors to a wrecked state, (price, I dont know).
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with a soot blocked cooler the engine is effectively strangled, the engine calls for more air and gives an unachievable instruction to the HP EGR to kick in and and top up the missing air. because its unachievable the software throws the P0401 fault code telling the investigator that the HP EGR is blocked. This is why garages change the HP EGR just because the software says so.
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Me? ive the cooler changed last November and lost all the fault codes, together with @theoneandonly we are monitoring my results on EGR opening and EGR temperatures to try and figure out how quickly my cooler will re-block.
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Ive been actively searching for a UK rebuild company who can rebuild my DPF, alas I cannot find one.
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Ive also looked at an EGR software delete however those installers ive conversed with have no knowledge of software versions. I would not therefore risk having a remap from somebody who has no knowledge of these peculiar engines and might give me a modified v18 (say) when mine is already 32.
.
Ive also been hunting for an engine wiring diagram as I would like to see if the butterfly throttle that is inside the LP EGR could be disabled as its this butterfly closing that strangles the engine.
.
Happy reading...........
.
please can I recommend that you read each and every page so you know the details.
.
You then need to wipe out your silencer tailpipe internally with pieces of kitchen towel, take it for a good run and re-wipe it out. if the kitchen towel comes out sooty then your DPF is internally cracked / burnt.
.
the beginning is the problematic early software caused overfuelling, if you get away light then it will have cracked the DPF (circa £3300 plus vat); the soot passing the cracked element will have blocked the LP EGR Cooler, (say £700 plus vat), all plus one day labour at a Fiat dealer as you also need the latest engine software v28 or v32, (we don't know when Fiat choose 28 or 32).
.
in worst case the original software burns one or more injectors to a wrecked state, (price, I dont know).
.
with a soot blocked cooler the engine is effectively strangled, the engine calls for more air and gives an unachievable instruction to the HP EGR to kick in and and top up the missing air. because its unachievable the software throws the P0401 fault code telling the investigator that the HP EGR is blocked. This is why garages change the HP EGR just because the software says so.
.
Me? ive the cooler changed last November and lost all the fault codes, together with @theoneandonly we are monitoring my results on EGR opening and EGR temperatures to try and figure out how quickly my cooler will re-block.
.
Ive been actively searching for a UK rebuild company who can rebuild my DPF, alas I cannot find one.
.
Ive also looked at an EGR software delete however those installers ive conversed with have no knowledge of software versions. I would not therefore risk having a remap from somebody who has no knowledge of these peculiar engines and might give me a modified v18 (say) when mine is already 32.
.
Ive also been hunting for an engine wiring diagram as I would like to see if the butterfly throttle that is inside the LP EGR could be disabled as its this butterfly closing that strangles the engine.
.
Happy reading...........
Dave Ducato
Member
Hi Fredastaire,
Newbie to the forum here.
I have a Ducato 2019 2.3 non-AdBlue Comfortmatic van that suffered the MIL issues as mentioned many times in this thread. It went into Fiat's at 7,000 miles and they fixed it approx 2 years ago. They said an injector was overfueling which they replaced and changed the filter assembly in the exhaust. The vehicle has now done 19,000 miles and so far seems OK.
My question is, can I tell that it now has the later firmware installed myself or does it have to go into the main dealer to have this checked? I don't know if they updated it at the time or if the improved firmware was even available at the time?
Thanks in advance.
Newbie to the forum here.
I have a Ducato 2019 2.3 non-AdBlue Comfortmatic van that suffered the MIL issues as mentioned many times in this thread. It went into Fiat's at 7,000 miles and they fixed it approx 2 years ago. They said an injector was overfueling which they replaced and changed the filter assembly in the exhaust. The vehicle has now done 19,000 miles and so far seems OK.
My question is, can I tell that it now has the later firmware installed myself or does it have to go into the main dealer to have this checked? I don't know if they updated it at the time or if the improved firmware was even available at the time?
Thanks in advance.
Shugzter
New member
That’s all very interesting and scary, I was planning on removing my LP egr as I had managed to get camera up bottom pipe and it looks blocked up, if there’s a electrical flap as you said I wonder if it could be removed, or would that show a code or keep it connected but removed? Thanks very interesting , but could do without it ta
theoneandonly
Established member
The typical way to do this DIY is to use the software Multiecuscan or Aldaobd with an OBD2 adaptor. A windows laptop or Android Phone/Tablet for Alfaobd is also required.
I use a usb leaded device OBDLinkSX and a Bluetooth4 Vgate icar pro fro m ebay about £25. Other BT devices work for OBD2 but many do not talk Fiat.
the cheapest way to get the ECU version is to use the demo version of Alfaobd and adaptor.
Dave Ducato
Member
Thanks, I'll look it up.
Hi to everyone, I'm working in the Ambulance. In the department of vehicle maintenance. We have a big fleet of cars. Little over 100. 80 of them are Fiat Ducato from 2014 to 2021. We have issue with engine codes E401 and E402 on one of the vehicle (Fiat Ducato 2.3 2019, around 150000km). It became problem when we cut particulate filter off but leave the egr. Then the van was working for like a week maybe, and the errors would come back. We tried everything, new egr electronic, new egr body, new air flow sensor but nothing helped. After weeks and weeks of agonizing we finally tried to cut egr valve also (electronically and in total of the engine) the problem stopped. Engine is working like a charm. No more problems.
So your saying that you ave 80 cars of this model and that the recipy to get them working is to:
- cut away the DPF (do you really mean to remove the particulate filter? open up and clean out the filter mass?)
- electronically disable low and high pressure egr
- and change air flow-sensor.
Are you seeing any smoke at all during aggressive acceleration after those operations?
You only have smoke after accelerations if your injectors are bad. Otherwise everything is fine. If you want to invest in a new dpf filter and egr fill free to do it, on the other hand cut away filter mass from the filter (leave catalyst and all the nox sensors and temperature sensors) and block egr valve (both electronically and totally off the engine. As for the air flow sensor we changed because we didn't know what to do anymore in the process of repairing (before egr and dpf cut away). Vehicle doesn't have check engine light anymore.
Dave Ducato
Member
Got the Vgate Bluetooth adapter and used Multiecuscan to obtain the data. It looks like the dealer either installed or the van came with V32 firmware. So this is all correct I assume?
With the later software, has this solved the engine issues or just delayed them?
