A class action is about to take place against Toyota about their DPF problems and the lack of action from the dealers, this could be a biggie hold tight......and now the news for their new corrola aint that great either...

Excuse my ignorance but what are DPF problems.

Google is your friend little grasshopper...

there is no way anyone could get DPF is that pauly

diesel particulate filter......lot of very late vehicles got them now.they do have a service life...an are'nt cheap.

And in English?

here was me thinking the P was Pauly , trying to figure out the D & F.

Dirty Pauly Fucker....??

Diesels are dirty running things , always were. Trouble is in for example France , diesel cars became more common than petrol cars as long ago as the 1980's.

All because

A) Diesel was considerably cheaper than petrol in Europe for many years

B) In all those small cars ( think Peugeot 205's , VW Golf's etc etc) the fuel consumption was WAY better than the equivalent petrol so the cars cost more to buy new but  MUCH MUCH less to run.

Into the more modern "enlightened" times and the Euro fuggers decide Diesel is a dirty word ( no pun intended !) , with particularly nasty exhaust particulates. To the extent that diesel vehicles are now banned in the inner Paris metro area.

In comes the DPF to catch all them fugging wee particulates as demanded by various Euro authorities. We get them in many Australian market cars "because"..

I have a 2012 Nissan Navara D22 ( or my missus does actually ) , one of the last non-DPF equipped diesels sold. I wanted it that way as I knew from UK contacts that they ( DPF's) were trouble waiting to happen.

Now even on that D22 , after a while between tankfills , if you have been cruising at a steady speed and then floor/accelerate swiftly , it chucks out big black clouds from the exhaust, almost embarrassing, that's on an 88,000 K's vehicle with the engine oil changed every 5,000 !

Down to Supercheap and in with the Diesel injector cleaner ( does not matter which brand , just the cheapest/best bulk deal on the day ).

That lasts for a wee while , sometimes 6 to 8 weeks and you're up for it again.

As for the "long run" scenario, if we head out into the wheatbelt and have a 350/400 K's day the Nissan runs so sweet after.

On that note so does my CVO Springer , maybe for the same reasons ?

https://www.news.com.au/technology/innovation/motoring/car-advice/new-toyota-corolla-recalled-for-cvt-transmission-fault/news-story/1246cab48bb9d9427533fd1b18b687e7

I’m pretty far from an expert but the mob I work for have a pretty big fleet of Kenworths. It can’t be a coincidence that the 10 or so ERG trucks we had got traded in way earlier and we’re still running trucks that are a good 5 years older. 

From what I’ve seen, Toyota has been having the most trouble with its DPF’s, compounded by the sheer amount of 2.8lt engined vehicles they have sold since around 2016 when they were first introduced (think of all those Hilux’s, Prado’s and a couple Fortuna’s. All(?) dispels now have to have DPF’s for emissions purposes, though I believe you can get work around done (but this would void your warranty and be illegal).

I drive a Isuzu work truck with the diesel burn off system and its a pain in the arse, you be driving down main north road doing 90km hour and next thing ya think the truck is a bloody steam train with the amount of smoke it blows. Everybody behind me changing lanes its a sight to see. Mind you the truck has done 177000 km's but motor has not missed a beat with only a few minor issues here and there

I never realised that Toyota utes and similar don’t have a stationary DPF burn mode.  All of the buses and light trucks where I worked (the ones that had DPF) had this option and most had an override.

This is a very interesting post. Putting in a blanking S/S plate for EGR today in Diesel 4. Knowledge is great and lets have more.

One of my riding mates has a Mitsubishi Triton ute to tow his caravan.

He has done many mods to it whereas my 2012 Nissan Navara ute is 100% stock bar a K&N stock airbox air cleaner element.

Just last week I was looking into a plug and play unit from Chip Tuning to switch off the EGR system thru' the ECM

( SOUND FAMILIAR FELLOW HARLEY DUDES ??)

Module on the way at $129 posted and delivered

Why ? It is a 2.5 diesel ill handling lump of course , so no need or point in "go faster".

It will give a cleaner response in the exhaust smoke output under certain circumstances , and keep the inlet manifolds and system cleaner.

Better fuel consumption to boot and quicker Turbo spool up they reckon.

Whoooah ! VW prices my goodness !

This "Nissan Common rail Diesel EGR OFF Module" is as said $129 delivered.

I probably shoulda fitted it 88,000 K's or 7 years ago FFsake !

Will post "how it goes" , as the only mod this vehicle ever got was the K&N stock replacement air filter and DIY 5,000 K oil changes.

This model is "older tech" than the D40 and has no DPF , I researched that from new and stayed away from DPF as long and far as I could !

Many years ago I was an MOT tester and "Nominated inspector" in the UK annual MOT system.

Smoke testing for diesels came in there probably 1990 as part of the MOT on any diesel vehicle, so I was acutely aware of potential problems.

6 month on update.

I did buy and fit "Chip tuning" EGR off module. Had to order specifically to the manufacturer/model/year/engine

Fairly simple "plug and play" no mechanical intervention at all required. No EGR block off plates or similar.

Thought I may 'hafta" go down that road , but so far not required 

Car runs just as well as before but NO black smoke puff on acceleration. The Mrs was well iffy about that "must have been my servicing"..

Indeed the turbo probably spools up a wee tad quicker , not sure if that's a Placebo but it seems/feels so. Fuel use same or slightly better.

In truth all I was trying to do was stop the "black puff" that was becoming chronic.

Now I see others on my morning commute ,black puffing Billies many of them. Tritons the worst , some Hiluxes too ! 

Thanks for the update. I still see plenty of Hilux's blowing smoke (burn off) but not for Rangers or others.