any reconmendations for dpf cleaner, in tank or exhaust off ?

[arther dailey]

So mitsi l200 passed mot , according to plug in nearly 700 miles to regen , after 250 the dpf light is flashing , limp mode , says now filter over loaded ! so any one used addative although probably not an option unless I can get it out of limp mode , or cleaner to clean cat and dpf with exhaust off. thanks in advance.

 

[anto44]

If you take it off and attach a hoover to the engine side of it so it's sucking through in reverse it will remove most of the soot. You'll actually notice it unclogging and the restriction reducing from the noise of the hoover.

 

[DanZac]

I used the Wynns off vehicle stuff on my Vivaro DPF when it was partially blocked last year. Cleaned it up a treat, and its been fine ever since.

Easy enough to do once you've got it off. I just blocked all the holes up, filled it up and let it sit for a few hours. Before draining and washing through as per the instructions.

Wynns DPF cleaner stuff

 

[Morrisman]

Some DPFs do a ‘regeneration’, whereby the burn up and spit out all the carbon nastiness that they are designed to capture. Sort of defeats the purpose, I’d have thought.

My Mondeo diesel apparently does it, but no idea how or when.

 

[DanZac]

Some DPFs do a ‘regeneration’, whereby the burn up and spit out all the carbon nastiness that they are designed to capture. Sort of defeats the purpose, I’d have thought.

My Mondeo diesel apparently does it, but no idea how or when.

They'll only "Regen" if the ECU sees the correct criteria. ie, Dpf blocked, fuel level above X, Engine temp above X, RPM above X, etc etc.

The problem comes when the criteria doesn't get met (lots of short trips, other faults, etc). In which case Regen never happens and it gets blocked up.

 

[arther dailey]

ok, sounds like hoover plus some Wynns cleaner..so put delphi on, set up for regen, temp correct and hit the button , revs automatically increased to 1500, says it should take 25 mins and light will go out , after 35 mins light still on and wont reset so looks like exhaust off as per sugested .Just glad it passed mot weeks ago

 

[Morrisman]

They'll only "Regen" if the ECU sees the correct criteria. ie, Dpf blocked, fuel level above X, Engine temp above X, RPM above X, etc etc.

The problem comes when the criteria doesn't get met (lots of short trips, other faults, etc). In which case Regen never happens and it gets blocked up.

A couple of times over the last few years I’ve gone to town, and back, 6 miles, and the cooling fan has been going full chatter when I got home, and kept going once the motor was turned off, and for quite a while after. I thought it had jammed on, but someone once suggested I had caught it mid-regen?

I’ve never heard the cooling fan going that hard at any other time. I don’t recall the rpm being high at idle though. I did take it round the block a couple of times to see if maybe that would sort the problem out, and the fan had gone off when I parked up again.

ETA: it passed MOT a few days ago.

 

[dobbslc]

It idles high when it's been forced to regen.

 

[arther dailey]

I will check oil level tomorrow to see if forced regen has filled sump with diesel...

 

[dobbslc]

A great design perk that

 

[DanZac]

I will check oil level tomorrow to see if forced regen has filled sump with diesel...

Saves having to top the oil up.............

Oh, wait a minute.

 

[TEO]

+1 for the Wynn's

 

[chip]

I'm in the same boat with the wifes car dpf code, limp mode etc .she took it into halfords a few weeks back and left it with em,Im not sure what they actually did but it was fine for a week after that, then the same issues were back .
The bill was a little under a 100 notes so Im guessing they didn't take off the dpf for that money.

 

[arther dailey]

A great design perk that

would nt sleep well thinking on it ..so checked oil and still same . so looks like exhaust off and get at it , depending on weather if its dry and wether and when I feel like it

 

[Trevorleach]

Told the other day that cocacola left in a dpf for a few hours works well, I thought he was kidfing but he assured he has done it more than once.
Most I hear of do a delete!

 

[arther dailey]

Told the other day that cocacola left in a dpf for a few hours works well, I thought he was kidfing but he assured he has done it more than once.
Most I hear of do a delete!

probably does work, if you think how it cleans coins up so bright

 

[Melvyn Best]

It might be possible to use a compressed air tool to inject DPF cleaner through the sensor port which saves the hassle of removing the DPF . Leave it to soak then start the engine and inject more until the DPF is clear.? Obviously you need the right gear to do it that way but it works

 

[Turbo]

If there is direct access to the dpf matrix when the unit is removed a good wash with a steam washer using tfr will unblock them.

If there's a bend in the pipe preventing direct access you could add in a joint at one end of the dpf, this is allegedly a welding forum!

 

[Migmac]

My Hilux regens every second day, regardless how it’s been driven. Idles very fast when it’s going through the process. My old Ranger never did a regen on its own, the auto spark had to force a regen. I presume the Hilux is going by miles done

 

[m_c]

If the DPF is blocked, then this works well - https://www.eurocarparts.com/p/normfest-dpf100-diesel-soot-particle-filter-cleaner-400ml-nor2897380

However I don't really remember many DPF issues from dealing with L200s. Biggest issue was oil dilution faults from people not resetting the oil life when serviced.
I do seem to remember a couple sensor faults, so I'd be giving it a visual check over for split hoses, and a quick datalist check to make sure all values look OK, before cleaning the DPF.