NOT ASKING TO DRIVE TO REGEN

[smar344]

I am no longer getting the message that comes up and says to drive to clean the DPF of my 2020 1.5 diesel Ford Transit Connect. Instead I am just getting the amber engine warning light coming on. So far I have had the DPF pressure sensor replaced, the intercooler hose has been replaced as it split, the battery has been replaced, Knox sensor was replaced, It has had a static regen by a Forddealer, it has had the adblue nozzle cleaned and another regen, and the DPF has been cleaned twice, it’s also had a full service too, this has all happened over the last 6 months or so. Has anyone had this happen to their Transit connect, if so what was the repair that you had done to fix this issue please? This is not a DPF problem, I believe this is a problem with something else not allowing the regen to happen, probably a sensor thats faulty. Any ideas would be very much appreciated.
Thanks
Tim

[metalworker0]

There is only one thing to do to find out what it is, that is plug in a scanner .

Forscan - that's what they recommend here .

NOTE: you can use forscan to get correct fault codes with proper explanation of them - a generic fault code reader may be somewhat misleading

"Forscan" is FREE software that you download to a laptop..you buy the interface cable -- this is just the cable you need a laptop)
You can join the forscan forum ..again free, to get the software and more answers.

https://forscan.org/forum/

without - you are lost ..must be done this way .

then you come here list the fault codes here ..and we will work on solving the problem

or if you use a cheap scanner

here is a list of all ford fault codes

https://www.slideshare.net/slideshow/al ... /259459141


all the best.mark

[smar344]

Hi Metalworker0, it's been on numerous scanners at ford dealers and various other garages. But hey don’t really know what they are doing especially at ford dealers! they just see that the DPF is full and do a regen, they aren't looking for the underlying fault that stops the van asking to be driven to regen.

[metalworker0]

All the better you start doing your own diagnosing then.

With forscan you can drive and see whats going on , see what comes up in real time "live data mode" see what's really happening, if ford dealer did this.

Sorry, this is the only way forward.

all you can do tyyoureself is

check van is coming up to temperature on the gauges
check wiring for visible faults and looseness on the connectors to sensors .
check battery is fully charged and is charging and in good health

check earths and positives to battery to body, battery terminals

check for more leaks in the turbo system boost pipes ,

check all vacuum hoses

that's about it

all the best.mark

[smar344]

Thanks

[smar344]

If anyone has had this problem, please feel free to chip in anytime. I have the van booked in again at another ford specialist tomorrow, if he comes back with anything I’ll post it on here again.
Thanks all

[smar344]

Further to the DPF problem with the van, I had the DPF replaced with an OEM Ford part. I would like to use FORScan to check on the condition of the DPF as it's been in for about a month now. But cannot find where to look in FORScan to look at last run regeneration, and other things DPF related. Any pointers would be appreciated. Thanks
Tim

[metalworker0]

See this video here

https://www.youtube.com/watch?v=ugUb4PmXsw8

You are basically going to live data and picking out from drop down menus what you want to see ... and populating the boxes

Once you've picked it . you then go live .. and it will be shown in real time what things are doing

In the case of the DPF it will be showing the percentage soot, with a brand new one it would probably be showing close to zero, but id imagine after a few weeks it will never show zero ever again, so you monitor this regularly to learn what's going on and you should see how things work .
As a percentage ... 45 percent is what i believe is what it regards as time to regenerate .. 85 percent is regarded as full and the fault light comes up.

somertimes not listed as percentage fior instance it may be in kpa.. you then change it percentage


Here's my pre-written explanation on how the dpf works and a link to O'Rileys

You can watch half a dozen of O'Rileys videos on youtube ..he's the guru of DPF problems on transits..

https://www.youtube.com/@ORileysAutos/videos

To give you some knowledge

The monitoring system has two pressure sensors one before the DPF and one after.
The one after will be reading a little greater than atmospheric pressure, when running, the one before will be a bit greater than that one .. when you have a brand new DPF because of a little bit of back pressure from the core.

As the DPF gets full of soot,, the sensor "before" measures a greater pressure.than the one after. the program in the ecu calculates what the difference is between both sides. as a percentage.
The program knows when the difference between one side and the other exceeds certain values ..it then activates the DPF regeneration.
if the difference is beyond when this can happen, it puts up a fault code . it will probably lead to check engine light and limited acceleration.

Failed regeneration's can be caused by vaporiser blockage..too many short trips or a DPF that is totally blocked... the vaporiser is as fuel injector type device that squirts neat diesel into or before the DPF ..it raises the temperature so that soot is burnt off .
There is also a temperature monitor ..so the ecu knows it is regenerating or if this has failed to happen or if its at too higher temperature ..in which case it shuts down the process, to stop it damaging the DPF .. leading to more codes and errors.

As mentioned watch Videos on youtube by "O'Riley's autos" he tells you how to get around all problems with DPFs , shows you cleaning methods and shows you how to interoperate what your scanner is showing ..how to force regeneration ..the pitfalls, the do's and the don'ts . as well as vaporiser servicing.

Diagrams of typical systems will be found with a google search.

Other things that can cause DPF blocking too soon are

Worn out engine that is using oil

Turbo charger that on its way out and leaking oil (caution can lead to diesel runaway)

Fuel injectors that are not performing

Boost pipe leaks - which upsets maf sensor and then it over fuels

O'Rileys videos teach you how to do a rough clean out of the DPF with chemicals before a forced regeneration


all the best.mark