DPF clean failed

[steve.armitage Find all posts View Profile Close steve.armitage]

If the idle rpm is at 900 for Auto or 1200 for manual. Run the engine at about 2000 rpm for about 10 mins stationary (as mentioned by 404pug). This might just help clear the unit as the running DPF temp will be nearing 700 deg which seems to be far higher than when cruising at 100-110km/h. Seems like longer extended drives are whats causing these DPF issue so far from forum members.

Doug

I'll give that a go in the morning. The DPF light is no longer lonely

[brogers Advanced Member Find all posts View Profile Close brogers]

I wonder if its worthwhile keeping a bottle of stuff like "Penrite Enviro + DPF Cleaner" in the Prado?
Apparently, if you believe whats on the Penrite bottle, it cleans and regenerates DPFs, Clears blocked DPFs, prevents blockups and improves efficiency.
Its fairly expensive, and a 375 ml bottle is added to your tank with only 30 litres of diesel in it....who knows, it might help?

[Bellie_666 Lurker Find all posts View Profile Close Bellie_666]

Brogers:

The check engine light and the traction control light are because of the DPF light so don't worry. As I said I did nearly 3500 kms with the light on and Toyota was fine with that. So I would stress about stopping.

When the DPF failed the first time I used 4or 5 bottles of that penrite DPF cleaner (I had just filled up) disconnected the batter and the injector on the DPF and manaaged to force a burn but it failed again the next burn... always worth a shot!

[adrian5800 Advanced Member Find all posts View Profile Close adrian5800]

Better I don't comment

I think you just did...

[steve.armitage Find all posts View Profile Close steve.armitage]

I tried 10 minutes stationary at 2k revs this morning and nothing changed. The garage at Ceduna was shut, so I did another 500k to Port Augusta and am waiting for the guys to let me know

[steve.armitage Find all posts View Profile Close steve.armitage]

The real pain is that im in limp home mode that seems to stop the gearbox going above 4th, do was cruising at 110kmph at 3k revs burning 14l per 100. Must be like owning a petrol Prado! At least fuel here is cheaper at $1.20/l

[cuda Advanced Member Find all posts View Profile Close cuda]

I tried 10 minutes stationary at 2k revs this morning and nothing changed. The garage at Ceduna was shut, so I did another 500k to Port Augusta and am waiting for the guys to let me know

It will only help if the 5th injector is active. So you need to catch it when its doing a normal burn unless you have Techstream which allows you to initiate a burn. Would love to know what the differential pressure readout is on the DPF. If you can get a hold of a bluetooth OBD (ELM327) and run Torque pro it could help diagnostically to see whats going on.

Regards
Doug

[brogers Advanced Member Find all posts View Profile Close brogers]

Brogers:

The check engine light and the traction control light are because of the DPF light so don't worry. As I said I did nearly 3500 kms with the light on and Toyota was fine with that. So I would stress about stopping.

When the DPF failed the first time I used 4or 5 bottles of that penrite DPF cleaner (I had just filled up) disconnected the batter and the injector on the DPF and managed to force a burn but it failed again the next burn... always worth a shot!

Hey Bellie...when your DPF light (and or other warning lights came on), did your car go into LIMP mode?...because I think I would actually get worried if I went into limp mode.

[Phs Senior Member Find all posts View Profile Close Phs]

Any update Steve ?
It would be interesting to know if engine oil and fuel quality is a factor to these 2.8lt DPF issues

[awwricecracker Member Find all posts View Profile Close awwricecracker]

I'm in Fitzroy Crossing, and while not as remote, have experienced similar issues you describe with my 16 hilux. After 5 visits to Broome toyota of them telling me nothing is wrong, it stopped doing it. They must have done a software update on it. I left it idling for half hour, tried driving flat out, tried topping out 3rd for half an hour.. nothing worked until they "couldn't find the problem". It does need to do a regen everytime between here and broome, I think due to the low revs it sits on while highway driving

[Bellie_666 Lurker Find all posts View Profile Close Bellie_666]

I have a manual so I don't think it can go into limp mode... I did have throttle restrictions but that was due to the dirty MAS sensor and once I cleans that it was all good..

I would highly recommend getting one of the Bluetooth obd readers, can easily see what's causing the issues and Toyota will usually tell you if it's safe to keep driving or not.

[steve.armitage Find all posts View Profile Close steve.armitage]

At Port Augusta, they said the DPF sensor failed. They referenced TPF89/16 and said it should be replaced under warranty.

After cleaning and having the engine lights reset, I drove to Melbourne with no further issues. The Prado is at Airport Toyota today for more tests....

[wanted Member Find all posts View Profile Close wanted]

Is it too early for a recall?

[steve.armitage Find all posts View Profile Close steve.armitage]

At Port Augusta, they said the DPF sensor failed. They referenced TPF89/16 and said it should be replaced under warranty.

After cleaning and having the engine lights reset, I drove to Melbourne with no further issues. The Prado is at Airport Toyota today for more tests....

This is the report from Airport Toyota in Melbourne. Note the 5 week delivery on the converter assembly and pending software update....

[Bellie_666 Lurker Find all posts View Profile Close Bellie_666]

Well I'm not sure what they did to mine but it seems like they've disconnected the system, driven over 1000kms and the light hasn't come in once! The fuel usage has even dropped 1.5l per hundred!