Originally posted by krypto
View Post
Announcement
Collapse
No announcement yet.
2.8L DPF Regen tracking
Collapse
X
-
Regen is the only process that cleans the dpf. It gradually blocks as you drive, until the difference in pressure between its inlet and outlet becomes great enough for the ECU to decide to "do a burn" basically dumping excess fuel into the exhaust, raising the revs and on engines with flaps (exhaust brakes) closes them.Silver '04 KZJ120~Manual~GXL~Dobinson/Kings lift~Custom valved Ironmans~Detroit Locker~Endless Air~X9 Superwinch~Madman EMS1~TJM Dual Battery~Rhino Roof Tray~120W solar panel~Foxwing awning~Bushskinz UVP~Long Ranger water tank~Bushman fridge~Steinbauer P-Box~Beaudesert 2 3/4"~Airtec Snorkel~TJM Sliders~Prico Boost Gauge~BFG-KO2s~TPMS~GME TX3420~Front and Rear Cameras~Ultimate Camper hanging off the back!
Comment
-
I am tracking this everytime it happens, and will be reporting to Toyota at my 10K service, as I have spoken to the Service Manager, and he is trying to tell me it is normal.
09-Oct-15
10-Oct-15
19-Oct-15
27-Oct-15 - 3926 km - let it complete DPF burn (return to normal idle 700rpm)
30-Oct-15 - 4386 km - let it complete DPF burn
1-Nov-15 - 4696 km - engine turned off during DPF burn
2-Nov-15 - 4700 km - let it complete DPF burn
2-Nov-15 - 4704 km - let it complete DPF burn
This seems a little excessive to me ;-)
Comment
-
Originally posted by BradO2K15 View PostI am tracking this everytime it happens, and will be reporting to Toyota at my 10K service, as I have spoken to the Service Manager, and he is trying to tell me it is normal.
09-Oct-15
10-Oct-15
19-Oct-15
27-Oct-15 - 3926 km - let it complete DPF burn (return to normal idle 700rpm)
30-Oct-15 - 4386 km - let it complete DPF burn
1-Nov-15 - 4696 km - engine turned off during DPF burn
2-Nov-15 - 4700 km - let it complete DPF burn
2-Nov-15 - 4704 km - let it complete DPF burn
This seems a little excessive to me ;-)
Comment
-
Originally posted by Scruffy View PostPerfectly normal!!! Please get a life and enjoy your Prado. The only things to be concerned about with this are is the oil or fuel consumption high? If the answer is no then the DPF is doing its job! If you want less regens drive the car faster and do less city mileage! Simples! Please leave this poor Service Manager alone he probably has many more customers who actually have real problems with their cars!
Due to the travel that I actually do, I would not expect to see the regen this many times, on a normal day I do a MIN of 40km of Highway drive plus 20km of 60-70km/h and this is each way. I don't do city driving at all.
And as per the blog posted by snapper
How can I ensure that the DPF regeneration process completes successfully?
By creating frequent opportunities for the ECU to complete its normal regeneration programme. Quite simply, this means regularly driving the car at a sustained speed above 40mph (60km/h) for a period of at least ten minutes.
Comment
-
So it's doing a minor regen every 300-500Km, that is perfectly fine from what I've seen in trucks, buses and cars. The only oddity is the two regens after stopping the vehicle in the middle of one, but I always advise customers to never shut the engine down in the middle of a regen, it causes the computer to do funny things. Fuso Rosa buses are the worst for this, they crack the shits big time if you shut them down in the middle of a burn. I do think you're stressing too much about it at this stage.[LEFT]Silver 150 Facelift
TJM Bullbar, Lightforce Genisis Spots, Dual Battery System with bits from everyone, Powerful 4x4 slider/steps, Kaymar rear bar, "Genuine" Roof Racks, MSA Seatcovers, Dashmat, Tint, LED Interior Globes, Bridgestone D697s [/LEFT]
Comment
-
Just found this on the net, it's from the UK Automobile Association and it might explain why the regen isn't occurring, interesting reading.
We're seeing some evidence of DPF systems failing to regenerate even on cars used mainly on motorways.
On cars with a very high sixth gear the engine revs may be too low to generate sufficient exhaust temperature for regeneration. Occasional driving in a lower gear to maintain around 2,000rpm should be sufficient to burn off the soot in such cases (refer to the vehicle handbook).
http://www.theaa.com/motoring_advice...e-filters.html
Regards...Mick
Comment
Comment