DPF and white smoke

[nudgebar]

From what ive seen the cans are huge so one should be enough i suppose

[Pradosaur]

Got the car back, and they did 2 DPF burns and used one can of DPF cleaner....

One can of cleaner is that not enough or a lot? So did it work?

[LeadWings]

Got the car back, and they did 2 DPF burns and used one can of DPF cleaner....

[LeadWings]

Called my dealer last week and booked mine in for the ECU upgrade and also asked about a manual DPF burn button:

"Yes, that’s correct, we started going the recalibrations about a fortnight ago. It’s more involved than simply loading the new calibration on, we have to inspect the condition of the filter itself to determine if it requires replacing, as there’s no point putting the new calibration on if the filter is no good. It’s best to leave the car with us for half a day as it can take up to two hours just to check and obviously longer if it requires a replacement.

There is some trialling of an install of a manual DPF regen button for Hiluxes but not for Prados and it has to satisfy very strict guidelines for its installation and nor is it an easy install. Parts are on sales stop until data is provided, so it’s not something I can order. It’s basically meant for mining vehicles that never leave the site/underground and never get up to highway speeds and doesn’t affect DPF regeneration when the vehicle is operating at highway speeds."

[beatit99]

Yeah just an excuse I think. Battery was definitely removed not sure about the tray. Got it back Friday arvo so was good part of two days to change it out. They put a new software version on too but I forgot to take note of it.

[Pradosaur]

Anyone know how long the DPF change out procedure should take?
My 2016 2.8 50,000km went in for DPF check Wednesday, did three manual burns and it didn't clear so ordered a replacement DPF for Thursday morning. Job not finished yet (Friday midday), apparently because of after-market modficiation, which I presume is my second battery with Piranha tray.

Even if the battery tray is in the road ... how long does it take to pull the aux battery and remove the tray 30 mins doing it left handed? Jesus they try anything

[beatit99]

Anyone know how long the DPF change out procedure should take?
My 2016 2.8 50,000km went in for DPF check Wednesday, did three manual burns and it didn't clear so ordered a replacement DPF for Thursday morning. Job not finished yet (Friday midday), apparently because of after-market modficiation, which I presume is my second battery with Piranha tray.

[LeadWings]

Looks like the main stream media are beginning to pick this up - I'm sure Toyota aren't happy about getitng this sort of coverage! Only name Hilux, but given time I'm sure the issues with Prados and Fortunas will also get mentioned if not resolved.

https://www.news.com.au/technology/i...48954b3b51e234

[JohnLynn]

Thanks for posting, yes as you say the delta pressure is subject to a lot of variables, engine speed, load etc but after monitoring it in torque pro you can see the average rise and fall before and after a regen. Presumably as they already use this method on other vehicles it shouldn't be too hard to introduce it to the 2.8. Being a cynical type I must admit that I raised my eyebrows reading that they developed this algorithm method to extend the life of the DPF but they have now decided that it will be OK anyway??? One other thing that doesn't seem to be addressed in your email from them is the 5th injector. Apart from saying this will no longer keep injecting fuel if the "conditions are not met" (I guess they mean the DPF getting hot enough?) there is no mention of it getting carboned up and needing cleaning frequently.

[LeadWings]

Thank you for posting, your dealer seems to know more than most! At the risk of "I told you so" this appears to be what Cuda, myself and several others have suspected, that the regen cycle is controlled by an algorithm rather than the actual state of the DPF % soot level
It sounds like this could fix the issue although the reason for the ECU acting this way was to prolong the life of the DPF, it seems odd they have decided that it will stand higher temperatures after all?
Would you mind if I copy/paste this to the Fortuner forum or perhaps provide a link to your post?

John, I am subscribed to the Fortuner threads so will post over there too. I have posted about using the actual dP across the DPF - it will be difficult as it is a function of a lot of variables, but I'm sure with enough data/testing they can use it as an input.

[CamJam]

What did you buy CamJam ?

The only petrol 4WD capable of touring with a family of four... Nissan Y62 Patrol (at least, at $70K drive away, it's $20+K less than the LC V8 Petrols best quote, so for me it was a no brainer). So far the average fuel consumption has gone down to 14.8-ish (driving a work one at the moment - pick up mine on Friday) so I am happy with that. When the DPF was clean and good, I'd get 10.8 or so in the Prado - high 12's when it started to clog up (never saw less than 11 in the preceding 15,000km's). Having said that, when the Bar, rack and tyres go on I expect to get it up above 15 again. I'm budgeting for 17L/100 which for me has me paying around $900 per 15,000km's over and above the Prado fuel bill. Still get 1000km range (just) out of a tank.

If they had still sold the Petrol Prado, it's where I would have gone as I'd have been able to shift all my accessories over to it - but from what I am hearing I am getting just as good economy from the V8. And having the ability to overtake in something less than 1000m is a good feeling again.

One thing I will say - this forum sh*ts all over the others from what I can see in terms of knowledge, peeps helping others out and activity. This I will miss!

[nudgebar]

I do like that response , and it does make sense - BUT , it doesnt address the fact that the DPF sensor pipes need to be cleaned out while the DPF is replaced . and if those tubes block up then we are back to square one. And what are they doing to make sure the 5th doesnt get blocked as it is now?

thanks for the update BTW Leadwings im glad you have an honest service manager

[Rockhop]

Pick up the new non-DPF, non-EGR, non-Turbo, non-AdBlue car on Friday - trading the 21 month old Prado in. It was another issue with the engine (potentially related) that was the last straw. DPF's started the roller coaster. It's good to hear

LeadWings

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LeadWings that they're working on a better fix - I sincerely hope they do fix it.

It also marries up with my previous comment that the Toyota Engineer told me that at 100km/h there was too much cooling for it to get hot enough (mind new - it's not new information, or information that suddenly came from anyone at Toyota Japan 'relaxing' information flow, as I was told this by an Aus Toyota Engineer last February). That explains my two DPFs - I used to have an 86km one-way trip to work and then back each day - about 80km of it was at 110km/h. So I guess that left the weekend for a burn or when out tottering around the ranges.

Yeah it’s a shame,
if we had known our prado setup as a tourer was going to be using 13lts per 100 around the outer burbs unloaded we would have purchased something els..

I think the petrol equivalent would be using less.

The comment about backing off boost, fuel and timing makes sense, for a while I have noticed it goes really well sometimes and struggles other times

to be honest it’s been how long and they are still trying to sort this out, How much did They make make last year.
it just can’t be that hard for a company of this size.

There sales will take a big hit eventually this whole fiasco is making them look very dodge indeed, ever second day now you hear or see a smoking Toyota

What did you buy CamJam ?

[CamJam]

Hi Camjam,

forgive me for my forgetfulness, were you moving on from the prado due to this issue ?

Pick up the new non-DPF, non-EGR, non-Turbo, non-AdBlue car on Friday - trading the 21 month old Prado in. It was another issue with the engine (potentially related) that was the last straw. DPF's started the roller coaster. It's good to hear

LeadWings

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LeadWings that they're working on a better fix - I sincerely hope they do fix it.

It also marries up with my previous comment that the Toyota Engineer told me that at 100km/h there was too much cooling for it to get hot enough (mind new - it's not new information, or information that suddenly came from anyone at Toyota Japan 'relaxing' information flow, as I was told this by an Aus Toyota Engineer last February). That explains my two DPFs - I used to have an 86km one-way trip to work and then back each day - about 80km of it was at 110km/h. So I guess that left the weekend for a burn or when out tottering around the ranges.

[JohnLynn]

Thank you for posting, your dealer seems to know more than most! At the risk of "I told you so" this appears to be what Cuda, myself and several others have suspected, that the regen cycle is controlled by an algorithm rather than the actual state of the DPF % soot level
It sounds like this could fix the issue although the reason for the ECU acting this way was to prolong the life of the DPF, it seems odd they have decided that it will stand higher temperatures after all?
Would you mind if I copy/paste this to the Fortuner forum or perhaps provide a link to your post?