Navara 2011 DPF Delete

Submitted: Monday, Oct 27, 2014 at 22:14
ThreadID: 109950 Views:2687 Replies:4 FollowUps:8
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Anyone who has removed a DPF device and replaced with an aftermarket device .
If you didn't need a chip to make it goooo what did you do
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Reply By: TomH - Monday, Oct 27, 2014 at 23:07

Monday, Oct 27, 2014 at 23:07
You possibly know its illegal to do Not that it stops people from doing it
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Reply By: olcoolone - Tuesday, Oct 28, 2014 at 07:52

Tuesday, Oct 28, 2014 at 07:52
Why do you want to remove the DPF?
AnswerID: 540948

Follow Up By: MUZBRY- Life member(Vic) - Tuesday, Oct 28, 2014 at 07:57

Tuesday, Oct 28, 2014 at 07:57
Gday
Whats a DPF?
Muzbry
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Follow Up By: MUZBRY- Life member(Vic) - Tuesday, Oct 28, 2014 at 08:10

Tuesday, Oct 28, 2014 at 08:10
Gday
Dont worry, i looked it up ...
Muzbry
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Reply By: oscar - Tuesday, Oct 28, 2014 at 10:48

Tuesday, Oct 28, 2014 at 10:48
The legalities are of little concern
Nissan have quoted $13500 to repair my car
I have carried out all the repairs myself except replacing the DPF
The fuel economy is atrocious 16 Litres/100km
I have purchased a replacement pipe and will fit
All marketers of the conversion want to sell performance chips etc
I have limited funds
AnswerID: 540964

Reply By: Ron N - Tuesday, Oct 28, 2014 at 11:10

Tuesday, Oct 28, 2014 at 11:10
EPA regulations state;

"A person must not, without just cause, alter, replace or modify the engine or the exhaust system or fuel system of any motor vehicle in a way that – (a) departs from the manufacturer’s design: or (b) increases the rate of discharge of any of the constituent parts of emissions, or (where applicable) defeats the intended upward discharge or dispersion of the emissions."

DPF removal is a sizeable operation for a few businesses. However, they are running close to the wind, as the law stands.

The bottom line is that there are very facilities in Australia to test that exhaust emissions meet the manufacturers specs.

The current visual test, that I believe applies to all States is that a police officer or vehicle inspector has to apply the "10 second rule". That is, that smoke of any kind must not be visible from the exhaust for more than 10 seconds of engine operation.

Short puffs of smoke are acceptable, such as those appearing under short bursts of heavy acceleration.
I have seen many current model Euro vehicles with intensive emission controls produce bursts of black smoke under acceleration.

To remove a DPF, the ECU has to be re-mapped to enable proper engine performance and to ensure that fault codes are not recorded.
AnswerID: 540966

Follow Up By: Member - Munji - Wednesday, Oct 29, 2014 at 11:51

Wednesday, Oct 29, 2014 at 11:51
It never ceases to amaze me about the number of people who want to continuously alter things with their vehicle, particularly fuel consumption.
Do they make the same choices between how much a kilo of bananas cost to the price of their clothes or shoes.
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Follow Up By: oscar - Wednesday, Oct 29, 2014 at 20:53

Wednesday, Oct 29, 2014 at 20:53
Thanks guys plenty of food for thought
I have just written out a cheque for $18867 for Nissan to make the necessary repairs
220000kms is reasonable cost ratio
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Follow Up By: lbudgie - Thursday, Oct 30, 2014 at 10:53

Thursday, Oct 30, 2014 at 10:53
WOW didn't know what a DPF was either then I google'd it.

didn't know navara's have these things, no wonder they blow up :)

dpf link
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Follow Up By: TomH - Saturday, Nov 01, 2014 at 17:17

Saturday, Nov 01, 2014 at 17:17
Almost all new diesels have them as they are compulsory to achieve the emission control specifications.
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Follow Up By: oscar - Saturday, Nov 01, 2014 at 18:25

Saturday, Nov 01, 2014 at 18:25
Trucks especially are being policed
Police carry a heat gun to apply to the exhaust to check the temp
Farmers need to be vigilant when expecting trucks to load grain .
The system can be up 500 degrees depending on regeneration.
An extreme fire hazard.
Every motorist purchasing new needs to be aware diesel is no longer an option if you are looking for fuel savings
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Follow Up By: Ron N - Saturday, Nov 01, 2014 at 19:02

Saturday, Nov 01, 2014 at 19:02
I don't know that diesel ever was a major fuel-saving choice when it came to the smaller diesels.
It's possibly used as a sales ploy on a number of smaller vehicles, but it just doesn't pan out.
Diesel is always dearer to buy - up to 20c in some areas - diesel vehicles always command a premium price when new - and diesels are MUCH more expensive to repair when things go wrong.

For city, or suburban operations, a petrol motor is just fine.
However, if you are travelling long distances or regularly towing a heavy load, or a sizeable trailer or 'van, then diesel is a far better choice.
The superior fuel economy at half-to-three-quarters throttle, and the superior torque of a diesel then pays off.

Re the fire hazard - I've seen plenty of ordinary 4 cyl cars set fire to straw at harvest - usually when Mum is delivering lunch or smoko to the boys.
All it takes is a handful of straw jammed in the exhaust system, and you have a fire within a couple of minutes.

One has to be vigilant, full stop, at harvest for outbreak of fire.
Fires regularly start in harvesters (jammed belts and hot bearings), they are regularly started by lightning strikes, they are started by metal components on machines striking rocks in the paddock and showering sparks around.

In the steam loco days, locos set crops on fire on a near-daily basis - despite spark arrestors.

If you've ever seen a diesel upswept exhaust working hard at night, then you would have seen the manifold and pipe glowing red and regular sparks being pumped out from chunks of hot carbon being released from the combustion chambers.

On a long grade, grossing just 38 tonnes, my old Mack F700 would hang 150mm of flame out of the exhaust - which ended just in front of the leading dual on the tandem drive!

So the DPF is just one more item to be aware of, for a fire source.
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