Dpf delete

Lwally91

Looking to delete the dpf and mapped on my insignia

Found these guys online (west coast tuning ballindooley headford road Galway

Any one recommend them or have any dealings with them, they have good reviews online

Thanks

Magown3

I deleted my dpf this year. Was far more fumey than I thought it would be.

I actually sold the car for this reason as I didn't want to be idling / defrosting the car in the upcoming winter mornings. You'd poison yourself and anyone around.

Lewis_Benson

Why get it deleted?

GSBellew

Is it not only a matter of time before this becomes an NCT failure ?

Edit, it is already a failure:

Notes

• A missing diesel particulate filter (DPF), exhaust gas recirculation (EGR) valve or catalytic convertor where either were fitted when the vehicle was originally manufactured, is subject to a

failure under reason for failure 8.2.2.1 (a).

Flinty997

https://www.boards.ie/discussion/comment/121390136#Comment_121390136

They cause problems.

User1998

https://www.boards.ie/discussion/comment/121390148#Comment_121390148

Once removed properly it won’t fail and probably never will.

MarkR

Wouldn't it cause problems at the NCT?

Lewis_Benson

It won't cause problems for the nct.

They do cause problems if the car is only ever driven about town or if something is faulty which stops thw regeneration cycle from occurring.

Not only is it an NCT fail if detected it's also a finable offense if caught by a roadside check. Since they are now checking OBE fault codes there is a chance they can detect the bypass by reading your ECU.

Here's the thing, if you are seen trundling down the road puffing out black smoke (even slightly) a mobile NCT inspector is quite within his rights to stop you and the first thing he will look for is an intact DPF.

User1998

https://www.boards.ie/discussion/comment/121390352#Comment_121390352

What a load of nonsense, there are no mobile NCT testers in Ireland. And a DPF removal doesn’t cause any additional smoke. Once done correctly it will pass the NCT and any DPF fault codes are permanently removed from the system.

There are mobile NCT spot checkers.

Removing a DPF removes its function of stopping smoke, if your engine has had its DPF removed and it has a tendency to smoke it will be very obvious that you have no DPF.

Absolutely none of these things are likely to happen, the proof been the thousands of people driving around with no DPF, but they are all possibilities which anyone thinking of doing it should be aware of.

Cordell

https://www.boards.ie/discussion/comment/121390967#Comment_121390967

There is no way to remove it correctly. It's removal will cause smoke, that's why it's there, to catch the smoke. You will probably pass NCT simply because their emission limits for diesels are ridiculously high, but if they find out it was removed you will fail.

BlakeS94

https://www.boards.ie/discussion/comment/121391104#Comment_121391104

A DPF doesn't stop smoke, it limits the amount of soot exiting the exhaust. I've had my DPF gutted for 8 months and there's been no smell/fumes, no EML and the car drives great, the only difference is it'll throw out a bit of black smoke under hard acceleration.

As User1998 said, done correctly, There will be very little smoke. Get it done by cowboys and the car will drive like sh1t and be covering the road in smog.

And the DPF filter is gutted, box is in place, cannot be spotted while looking under the car.

Smoke cannot get out if there is a DPF present so any smoke is a sure sign that the DPF is missing. The reason many DPFs clogg is because another fault makes the engine smokey and it cloggs the DPF prematurely. Take the clogged DPF out and there is nothing to stop the smoke getting out.

Not all cases but certainly a real possibility.

BlakeS94

Cars can smoke for a number of reasons. White, Blue and even black that isn't DPF related.

Smoke is translucent, you can't block a filter with Smoke, it's soot i.e byproducts of diesel combustion.

I got my DPF gutted and there wasn't even anything wrong with it, just wanted the driveability benefits and no headaches from it going wrong. EGR is bypassed on my car too :)

User1998

https://www.boards.ie/discussion/comment/121391121#Comment_121391121

As above, a DPF’s function is not to catch smoke. Its function is to catch soot accumulation.

And there is no emissions test for diesel cars. Only a smoke test.

Cordell

https://www.boards.ie/discussion/comment/121391513#Comment_121391513

As above, a DPF’s function is not to catch smoke. Its function is to catch soot accumulation.

The black smoke is soot - that is microscopic carbon particles produced by incomplete burning of the diesel.

And there is no emissions test for diesel cars. Only a smoke test.

My point exactly. And even that is very relaxed. It's an opacity test, it tests for thick smoke which can be either soot or unburnt diesel or a mix of both.

Where are the mobile NCT checkers, never heard of them and Google says nothing about them

listermint

https://www.boards.ie/discussion/comment/121391151#Comment_121391151

Tbf that's nonsense. I know various vehicles with DPF stripped out. The are absolutely toxic. It has a huge impact in what comes out the tail.

You only have to sit behind a stripped diesel in traffic for 10 seconds to get a waft of it.

Very common but it's nonsense to say it has no impact.

GavPJ

https://www.boards.ie/discussion/comment/121391558#Comment_121391558

It is Lord Lucan and he travels around on Shergar trying to catch folk.

Cordell

In most if not all cases gutting the DPF also means removing the catalytic converter, because they are in the same unit.

snowcat

https://www.boards.ie/discussion/comment/121391151#Comment_121391151

DPF stops cancer causing diesel particulates from being emitted. Removing the dpf is a bit like having a fag outside the school gates with all the kids around. Easy to test for DPF removal or non functioning. Run a finger on the inside of the exhaust pipe and if there is soot the filter is removed/nonfunctioning. Should be a part of the NCT. Or else just look for the smokey diesels.

Cordell

Run a finger on the inside of the exhaust pipe

Run a damp rag on the inside of the exhaust pipe before the test. That's the problem, it's hard to prove unless it's obviously missing, if the DPF case is there then it's simply too difficult to prove it's been gutted. They need to update the emission test limits to properly test the diesels, just as they test the petrol engines.

User1998

You can’t claim a DPF isn’t present just because there is soot on the exhaust. Its not an accurate way of testing and its not enough proof

Lewis_Benson

So OP, get a petrol engined car is the answer.

mk7r

https://www.boards.ie/discussion/comment/121392231#Comment_121392231

Its pretty trivial to check though if the DPF has been removed and mapped out. I can see it becoming part of the test in the future.

It's against the law as simple as that.

It's surprising that garages are even allowed to offer the service since they know that they are facilitating breaking the law.

It will become a thing that they take far more seriously as low emissions zones start to be introduced.

Whocare

https://www.boards.ie/discussion/comment/121390967#Comment_121390967

Must be on about rsa checkpoints but thay only Harassing truck driver.

https://www.boards.ie/discussion/comment/121393320#Comment_121393320

I was talking to a person who was stopped on the M50 with regard to a faulty bumper and issued with an on the spot fine and an enforcement notice. This was some years ago and when I looked into it they were only operating around the Dublin area.

GavPJ

https://www.boards.ie/discussion/comment/121393485#Comment_121393485

That person you were talking to is telling lies.

djan

https://www.boards.ie/discussion/comment/121391151#Comment_121391151

A DPF absolutely stops black soot what many including yourself consider as smoke. Issue is NCT don't place the car under enough load for it to be more apparent or actually measure emissions during testing. It's not difficult to check for missing DPF from a testing perspective and I'd argue it should come with a very hefty fine when found out both for the owner of car and garage that facilitate this.

Cordell

I think it's quite difficult to check for a DPF that is gutted and disabled from the engine ECU. There is no visible proof, the box is still there and intact, and there are no engine error codes. So probably they need much better exhaust analyzers, and who's going to pay for that?

kaahooters

https://www.boards.ie/discussion/comment/121391151#Comment_121391151

what do you think the smoke is?

Henry Ford III

If a car is designed to run a dpf it should always have one.

To remove it is mean and selfish and damages the environment.

The NCT should be changed as these vehicles should be taken off our roads.

https://www.irishtimes.com/advertising-feature/a-car-with-a-dpf-filter-removed-cannot-legally-drive-on-public-roads-in-ireland-1.4119079

"

Legally, however, a car with a DPF filter removed cannot drive on public roads in Ireland. The absence of the DPF makes the vehicle non-compliant with the homologation certificate; Irish law stipulates vehicle homologation is mandatory for all vehicles driving on public roads. Roadside checks now seek to determine whether a fitted emission control device has not been removed, disabled or modified to reduce its effectiveness."

Tantalum73

Its only a matter of time till particulate number testing will be introduced here as it has started in other European countries

If you sell a car with the DPF removed and fail to notify the new owner - you are also breaking the law and can be taken to court to pay the costs of reinstating the DPF, so no resale value.

GavPJ

https://www.boards.ie/discussion/comment/121400718#Comment_121400718

What if you didn't know it was taken out?

Cordell

It's probably one of those things where you are liable even when you're not guilty.

https://www.boards.ie/discussion/comment/121400780#Comment_121400780

As in everything, ignorance of a law (or it's consequence) is not a defense in law.

User1998

https://www.boards.ie/discussion/comment/121400718#Comment_121400718

Source?

https://www.boards.ie/discussion/comment/121401210#Comment_121401210

I gave the link to an article discussing all the implications a few posts back.

User1998

https://www.boards.ie/discussion/comment/121401222#Comment_121401222

I’d like to see the law that states a private seller must inform the new owner of any modifications done to the car they are selling. I’d also like to see the law that states compensation is owed if they fail to do so. And I wonder has it ever been enforced?

Also the first line of the article states that a DPF removal is an NCT failure which in reality simply isn’t true. Nobody goes chopping the whole DPF off, only the inside is removed to avoid detection. So I wouldn’t trust much else of the article.

https://www.boards.ie/discussion/comment/121401247#Comment_121401247

It's not a legally drivable vehicle if the DPF is removed. You cannot sell it as a car if it cannot be legally used as a car.

User1998

https://www.boards.ie/discussion/comment/121401471#Comment_121401471

Can you show me the legislation that states that? Are you saying its illegal to sell a car with no tax or NCT then? Or a car with bald tyres? Does that mean I was engaging in illegal activity buying damaged cars and putting them back on the road?

https://www.boards.ie/discussion/comment/121401875#Comment_121401875

Hey, do what you like. My comments are purely to inform people considering breaking the law what the implications could be.

User1998

https://www.boards.ie/discussion/comment/121402101#Comment_121402101

Don’t get me wrong I hate diesel cars and all that comes with them but I don’t think what your saying is factually correct.

https://www.boards.ie/discussion/comment/121402387#Comment_121402387

Everything I have said is confirmed In The Irish times article I linked to. I am not inventing a single thing.

Xpro

Removing DPF and EGR but leaving cat converter in place massively increase the life span of a diesel engine. I have been running mine since 2016. Euro 6 engine, and there is zero smoke coming outof the exhaust, especially when dpf delete is done on newer vehicles. MPG is improved, car temps run a lot lower, no need for high 800c regens, clogged egr and dpfs. Its a no brainer if the job is done right

GSBellew

https://www.boards.ie/discussion/comment/121473705#Comment_121473705

Except for the people behind you in traffic.

The fumes from a DPF deleted diesel are hideous, you can taste them when you are in traffic behind one and you know when you get that acrid smell that hits you in the back of the throat that you are behind a dpf deleted car, it is horrible.

Magown3

I agree. I mistakenly took mine out, replaced it with a downpipe and held onto the dpf. Fumes were terrible and I sold the car because of it as the job to remove the dpf was so hideous I just couldn't face putting it back on.

Car was sold with the dpf and new owner intended to put it back on.