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P0428 Dtc After Dpf Removal

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Good job mines a euro 4...apparently only tailpipe inspections will show missing filters, which the UK are trying to do away with. Obd will be used to read fault codes... No talk of forced regens etc.



So at least 3yrs away

  • Author

Happy days, Euro 4 here,

Kinda makes sense, the dpf was never intended for the Euro 4, it was an addition or more likely a trial run for Euro 5 spec

Auto

Express investigated 10 DPF removal companies, with most not informing

them that their modification will affect the performance of their car,

and thus affect their insurance policy.

The Association of British Insurers told the magazine that motorists

should “tell their insurer about any modification”, with one saying it

would decline to cover cars with their DPF removed due to the ECU

needing reprogramming after removal.edit churchill direct line and underwriters have also refused to insure cars

Most garages wrongly stated that it wasn’t essential to tell

insurance companies as the modification is difficult to detect, and

wouldn’t contravene the Road Vehicles (Construction and Use) Regulation

61A (using a modified car on the road which no longer meets the

emissions standards applied to it when new).

With the MOT not fully enforcing these regulations, vehicles passing the basic diesel smoke opacity inspection will still pass.

- See more at: http://www.eurocats.co.uk/2013/11/20/removing-your-dpf-could-invalidate-insurance/#sthash.2aZKypdN.dpuf

http://www.eurocats.co.uk/2013/11/20/removing-your-dpf-could-invalidate-insurance/

the issue is that people on here are mis informing others on having the dpf removed giving them little facts as to the legality etc we cant give out radio codes but we can advise others to just whip out there dpf without saying its illegal as the poster stated he was not aware thats my issue as for proof email vosa youreself dont take my word for it in germany for years they use existing equipment plug it into the obd port and do a test takes 2 minutes costs no more money.it should be a sticky on the forum with all the relevant info and left to the person to decide on their own if its right ,no ones failed the test well they have im afraid my mate wont fail it if it looks like its their but he failed one for the weld showing and being poorly done and had to put it on the system the guy had it rewelded and you couldnt tell but vosas online database had it on record that it was suspected of being missing the owner had to pay to prove it was their which it wasnt so no mot could be given in the end he put an aftermarket dpf on etc and passed the test not all companies do a good job

as for the fault above We reprogram the engine's ECU, switching off all the DPF functions.

The car now no longer has a filter and the engine management is not

looking to regenerate it. "Problem Solved"

In most cases that's the end but occasionally

if there has been a mechanical or electronic fault with a component on

the engine such as the EGR valve this would need to be rectified

if the above was done there may be an issue as you say with a broken sensor wire

the latest memo from simon birkett

CAL director Simon Birkett said that vehicles that have had their

filters stripped out are worsening air quality, and that if they are not

subjected to existing MOT emissions tests, or even stricter ones under

the EU proposals

“Tens of thousands of UK motorists are illegally driving diesel vehicles

without the filters, and face losing their car insurance and risk being

found guilty of fraud because of this ( if the customer sell the vehicle on and does not inform the new owner are they committing fraud) many without realising it.

Department of transport speach 2014

A DfT spokesman said: “We are committed to lowering emissions from

vehicles, which is why in European Union negotiations we are supporting

an approach designed to improve emissions testing through the use of the vehicles on board diagnostics or even tail pipe emission tests.

From the association of motor repairers uk newsletter

It is the responsibility of the vehicle owner to

ensure that their vehicle is legal to drive and roadworthy, and to

declare it as such when applying for or renewing insurance. Applying

for or renewing insurance knowing that the vehicle is illegal or

unroadworthy, would amount to misrepresentation and potential fraud.

Terms and conditions of motor insurance policies normally specify that

the vehicle must be registered in the UK (or in the process of being registered), and that the vehicle is roadworthy. No

insurance would be offered or renewed if the owner declared to the

insurer that the vehicle was illegal to drive/unroadworthy.“

Changes in the UK MOT rules from March 2014 also include checks on

the presence of the DPF Filter, so if it has been removed then your car

will fail its MOT inspection. Because this is currently only a visual

check, there are some companies who still continue to offer DPF Removal /

DPF Delete services which involve opening up the DPF, knocking out the

insides, rewelding and refitting, essentially leaving the original case

intact and still in its original place in an attempt to fool the MOT

visual check.

However, it is only a matter of time before the current MOT test

changes once again, to include a more advance method of checking, which

is already in place across parts of Europe and involves plugging a

diagnostic system into the car computer during the MOT test, and

physically checking that the DPF is present and working. Should the test

detect a problem, then the car will fail.

Auto

Express investigated 10 DPF removal companies, with most not informing

them that their modification will affect the performance of their car,

and thus affect their insurance policy.

The Association of British Insurers told the magazine that motorists

should “tell their insurer about any modification”, with one saying it

would decline to cover cars with their DPF removed due to the ECU

needing reprogramming after removal.

Most garages wrongly stated that it wasn’t essential to tell

insurance companies as the modification is difficult to detect, and

wouldn’t contravene the Road Vehicles (Construction and Use) Regulation

61A (using a modified car on the road which no longer meets the

emissions standards applied to it when new).

With the MOT not fully enforcing these regulations, vehicles passing the basic diesel smoke opacity inspection will still pass.

- See more at: http://www.eurocats.co.uk/2013/11/20/removing-your-dpf-could-invalidate-insurance/#sthash.2aZKypdN.dpuf

Auto

Express investigated 10 DPF removal companies, with most not informing

them that their modification will affect the performance of their car,

and thus affect their insurance policy.

The Association of British Insurers told the magazine that motorists

should “tell their insurer about any modification”, with one saying it

would decline to cover cars with their DPF removed due to the ECU

needing reprogramming after removal.

Most garages wrongly stated that it wasn’t essential to tell

insurance companies as the modification is difficult to detect, and

wouldn’t contravene the Road Vehicles (Construction and Use) Regulation

61A (using a modified car on the road which no longer meets the

emissions standards applied to it when new).

With the MOT not fully enforcing these regulations, vehicles passing the basic diesel smoke opacity inspection will still pass.

- See more at: http://www.eurocats.co.uk/2013/11/20/removing-your-dpf-could-invalidate-insurance/#sthash.2aZKypdN.dpuf

It is highly debateable whether DPFs really help emmisions, during the lifetime of the car (taking into account the extra fuel the DPF equipped car burns, in normal use, and even more during regens, and more still when the DPF is near the end of its life-cycle, then there is the manufacture of the DPF, and its carbon footprint and the enviromental impact of making several during the cars lifetime, then there are the emmisions when the DPF is old

Strangely, a properly set up car with a DPF delete and a solid EGR late seems to smoke a lot less (as well as have a better MPG - cars with a better MPG have less enviromental impact , due to the resources/ energy pollotion required to dig (finite) fossil fuels out iof the ground/ sea, refine & transport it etc)

Another thing car/ DPF manufacturers don't want you to know is - its the tiny particles that are most harmful to peoples lungs, the particles that the DPFs cannot filter (they just filter out the larger particles that are less harmful) in fact, the percentage increase of smaller (more harmful) particles is increased with a DPF fitted

With a DPF fitted, the particles tend to build up on the surface of the DPF over time then get "blown off" when the car is "booted" concentrating the pollution in certain locations (especially with a lot of traffic/ where cars accelerate) this can make these arease worse than if the cars did not have DPFs fitted (the pollution would be spread out over a longer period probably where it is less harmful )

The carbon footprint/ enviromental impact of the car has to be examined during its lifetime - not just sticking a plaster over a wound - it just does not work

For example, a diesel engine with no DPF, no EGR, but with an emmisions// sensor on the exhaust that monitors the particulate output and adjusts the fuelling to compensate (keeping the emmisions low) would be a lot more efficient (solution is better than cure/ "belt and braces")

Its up to the individual car owner to decide whether to delete their DPF or not

I've been of the opinion for some time that the particulate emissions from diesel engines, particularly those universally used for road haulage and public transport, is a significant factor in the increase of breathing problems such as asthma. I tend to agree with FOCA that attempts to cure this problem by bolting on ever more restrictive emission control systems is not working. This is why I've decided to revert to a petrol car. I suspect that our old 1.8TDCi without all these systems is not much, if any, worse than a modern one with them and is a good deal cheaper to maintain. I've already got a newer petrol focus and when we change the old diesel we'll be looking for another petrol.

  • Author

Sooo, now we seem to have established the legalities / moral implications / MOT concerns ---- the Sensor! any suggestions on a mechanical fix? would it be detrimental to the running of the engine with it clearly not working? should the garage fix it anyway?

If I clear it it stays off until I boot it, even when frozen at 212f which is the figure it reports when the warning comes on, that's not especially high, I have traces of this sensor running at 800f prior to the DPF work so it cant actually be too high....

ide take it back to who did the dpf in the first place as its a sensor issue that wasnt there till the dpf was done

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