grunf wrote:Had the switch installed today. Manual switch will only work if the DPF gets full and DPF light or a message (depending on a hilux model) is displayed on the dashboard. You can't manually start DPF burn just for the sake of it.
cauchs wrote:grunf wrote:Had the switch installed today. Manual switch will only work if the DPF gets full and DPF light or a message (depending on a hilux model) is displayed on the dashboard. You can't manually start DPF burn just for the sake of it.
This seems useless to most people, particularly those requesting a manual button due to driving in paddocks/bush tracks.
I run a scan gauge and have used this once to do a manual burn before driving through paddocks when I knew a burn would have otherwise automatically occurred. I was thinking a manual button would just make this easier however it doesn’t appear to be the case. It would be handy if the manual button worked so you could hit it when you are on a good stretch of highway knowing you will be turning off into paddocks or the bush rather than having to stop and wait while it does it’s thing.
Andyfive wrote: button is useless
Bushwalker8 wrote:Andyfive wrote: button is useless
The button is intended as a last ditch emergency option that will get you out of serious mechanical risk &/or show stopper situation if you reach a critical level in a difficult environment and particularly a long way out.
It's reassuring to know I have a plan B bailout option if things really go pear shaped.
grunf wrote:say you have been driving offroad, slow, low range most of the time and for a long time ...
for example you go on a camping/touring trip, so its few days like this and car due to very slow driving or frequent stops can not perform regeneration, then dpf light comes on - you would be able to use this manual button in that scenario and get out of dodge sort of speaking
or for people who live in suburbs and dont do a lot of freeway driving or long trips at all, their car dpf will get clogged and eventually the light is going to come on, - use the button then
ggreenie wrote:grunf wrote:say you have been driving offroad, slow, low range most of the time and for a long time ...
for example you go on a camping/touring trip, so its few days like this and car due to very slow driving or frequent stops can not perform regeneration, then dpf light comes on - you would be able to use this manual button in that scenario and get out of dodge sort of speaking
or for people who live in suburbs and dont do a lot of freeway driving or long trips at all, their car dpf will get clogged and eventually the light is going to come on, - use the button then
I don’t think you know how the whole system works
grunf wrote:Please educate me then. Im realy keen to hear your expert opinion.
Or lets see if others think if I know how system works or not.
Andyfive wrote:I'm curious, could you please elaborate on these "scenarios".
ggreenie wrote: A manual burn button will not remedy that.
Bushwalker8 wrote:ggreenie wrote: A manual burn button will not remedy that.
Incorrect, the button does exactly that. The manual regen process specifically increases RPM and raises DPF temperatures sufficiently to enable the burn. That's why the manual switch instructions state not to squat on flammable material or touch the exhaust while you are doing it.
ggreenie wrote: it can’t instantly bring everything up to temperature.
Bushwalker8 wrote:ggreenie wrote: it can’t instantly bring everything up to temperature.
Sorry incorrect again, nobody said "instantly". The manual regen process can take something like 20 mins to get up to temperature and complete the burn.
The button starts the process.
Have you read your manual?
ggreenie wrote:grunf wrote:Please educate me then. Im realy keen to hear your expert opinion.
Or lets see if others think if I know how system works or not.
The problem in the scenarios you described is frequent stops/lack of driving time. A manual burn button will not remedy that. The system still needs time to get up to temperature.
ggreenie wrote:Bushwalker8 wrote:ggreenie wrote: A manual burn button will not remedy that.
Incorrect, the button does exactly that. The manual regen process specifically increases RPM and raises DPF temperatures sufficiently to enable the burn. That's why the manual switch instructions state not to squat on flammable material or touch the exhaust while you are doing it.
No, no, no. Wrong. It isn’t a blowtorch, it can’t instantly bring everything up to temperature.
The burn cannot commence until the system is at operating temperature. Otherwise the fuel coming out of the 5th injector won’t ignite.
ggreenie wrote: The button does literally nothing unless the whole system is already at operating temperature.
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