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Technical DPF delete
- Thread starter Zakt
- Start date
Currently reading:
Technical DPF delete
you would also physically remove the DPF? 
expensive...
expensive...
you would also physically remove the DPF?
expensive...
Replacement pipes are available from these people for £58: http://www.ragazzon.it/
I can't see why the existing DPF couldn't be bored through though.
I wouldn't do it (given that I've never had a problem with the DPF in the 18 months I've owned the car), but 2 or 3 people on here have reported problems. Might be of interest to them at least
neither would i as i wouldn't buy a ddddiseasal in the first instance!
Good for you
I very much suspect that this is an instant MOT failure.
Not to be funny but it seems to be merely opinion. Would a diesel actually pass the smoke test without a DPF (whose purpose is to filter out the particulates.....)?
The MOT tester, Authorised Examiner (VOSA) and Quality Controler (VOSA) commenting on the Jaguarowner forum linked would seem to not share your concerns.
Has he actually tested a car designed to work with a DPF sans-DPF?
The fact that they're saying "At those temps the DPF won't be working" says to me that they're confused between the primary function of the DPF which is to remove particulates from the exhaust emissions rather than a regen which is merely part of the way the DPF operates.
As I said, read the comments from the person I've refered to, martin.rowe, and all will become clear. Quoting another individual who has said nothing of importance takes nothing away from Martin's informed statement
trphil
New member
This is speculation based on prior similar experience:-
If you have a petrol engined car that has a catalytic converter but the car is old enough so that it didn't have to have a catalytic converter then it will still pass the MOT without the catalytic converter.
I would have thought that the DPF on diesels would be a similar circumstance on this basis.
Also of course, if you take the car for 70 mph 3rd gear drive immediately before the test (like you would anyway with an older car with a risk of failing the emissions test) I would say that it would be unlikely to be producing any soot at the time of the test.
If you have a petrol engined car that has a catalytic converter but the car is old enough so that it didn't have to have a catalytic converter then it will still pass the MOT without the catalytic converter.
I would have thought that the DPF on diesels would be a similar circumstance on this basis.
Also of course, if you take the car for 70 mph 3rd gear drive immediately before the test (like you would anyway with an older car with a risk of failing the emissions test) I would say that it would be unlikely to be producing any soot at the time of the test.
D4nny8oy
Established member
The issue that I can see is that the software in the engine ECU expects clogging to occur and the differential pressure to increase to the point where it regens to clear out.
If it fails to see this, then it would assume a pressure sensor/DPF failure and flag up a fault.
If it fails to see this, then it would assume a pressure sensor/DPF failure and flag up a fault.
But that's exactly what this service offers: it removes/adjusts that part of the software in order to ensure this will never happen.
I've done a quick google search and found there're a number of firms offering this adjustment now - they can't all be shysters
so what
is he even a qualified engineer and IAEA member?
http://guideto.iaea.org.uk/liaison.htm
to be emission regs compliant the car has to be as homologated - end of story
so what
is he even a qualified engineer and IAEA member?
http://guideto.iaea.org.uk/liaison.htm
to be emission regs compliant the car has to be as homologated - end of story
You can lead a horse to water...
end of
D4nny8oy
Established member
I'm not denying there's people out there who completely disable the DPF parameter- it just isn't clear that's what is done if you buy this Ebay product.
TBH, most remapping people can disable the DPF whilst writing the new software to the ECU- and you get much more for your £300 than just getting the ECU to ignore the DPF.
A few points;
1) its about time emission laws were enforced by police & vosa, getting a car through a MOT emission test is a joke.
2) altering the emission system will change emissions thus tax bracket?
3) IMO the fiat system works great, never had an unresolved issue unlike other manufactures that are struggling to meet legislation with their systems or are they claiming DPF's are not any good so they dont have to spend/design their own?
1) its about time emission laws were enforced by police & vosa, getting a car through a MOT emission test is a joke.
2) altering the emission system will change emissions thus tax bracket?
3) IMO the fiat system works great, never had an unresolved issue unlike other manufactures that are struggling to meet legislation with their systems or are they claiming DPF's are not any good so they dont have to spend/design their own?
not end of...
I am a professionally qualified engineer and worked in the automotove sector for a major oem - one of my projects was emission compliance of diesel engines
ergo I know more that you
