DPF Problems I Have Never Seen This Before
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- Опубліковано 23 тра 2020
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Wall-flow diesel particulate filters usually remove 85% or more of the soot, and under certain conditions can attain soot removal efficiencies approaching 100%. Some filters are single-use, intended for disposal and replacement once full of accumulated ash. Others are designed to burn off the accumulated particulate either passively through the use of a catalyst or by active means such as a fuel burner which heats the filter to soot combustion temperatures. This is accomplished by engine programming to run (when the filter is full) in a manner that elevates exhaust temperature, in conjunction with an extra fuel injector in the exhaust stream that injects fuel to react with a catalyst element to burn off accumulated soot in the DPF filter,[3] or through other methods. This is known as filter regeneration. Cleaning is also required as part of periodic maintenance, and it must be done carefully to avoid damaging the filter. Failure of fuel injectors or turbochargers resulting in contamination of the filter with raw diesel or engine oil can also necessitate cleaning.[4] The regeneration process occurs at road speeds higher than can generally be attained on city streets; vehicles driven exclusively at low speeds in urban traffic can require periodic trips at higher speeds to clean out the DPF.[5] If the driver ignores the warning light and waits too long to operate the vehicle above 60 km/h (40 mph), the DPF may not regenerate properly, and continued operation past that point may spoil the DPF completely so it must be replaced.[6] Some newer diesel engines, namely those installed in combination vehicles, can also perform what is called a Parked Regeneration, where the engine increases RPM to around 1400 while parked, to increase the temperature of the exhaust.
Diesel engines produce a variety of particles during combustion of the fuel/air mix due to incomplete combustion. The composition of the particles varies widely dependent upon engine type, age, and the emissions specification that the engine was designed to meet. Two-stroke diesel engines produce more particulate per unit of power than do four-strokediesel engines, as they burn the fuel-air mix less completely.[7]
Diesel particulate matter resulting from the incomplete combustion of diesel fuel produces soot(black carbon) particles. These particles include tiny nanoparticles-smaller than a one micrometre (one micron). Soot and other particles from diesel engines worsen the particulate matter pollution in the air and are harmful to health.[8]
New particulate filters can capture from 30% to greater than 95% of the harmful soot.[9] With an optimal diesel particulate filter (DPF), soot emissions may be decreased to 0.001 g/km or less.[10]
The quality of the fuel also influences the formation of these
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Due to factors beyond the control of Bodgit And Leggit Garage, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. Bodgit And Leggit Garage assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. Bodgit And Leggit Garage recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of Bodgit And Leggit Garage, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained
#dpf #dpfproblems #enginemalfunction - Авто та транспорт
you know how to make a small job into a big job,i knew it was just the sensor as soon as i saw the high reading
Otherwise known as a part changer congratulations I wish we all could be as good as you know exactly what's wrong without doing any tests it's all about showing people how to test things the proper way and how to get down to it without guessing
@@bodgitandleggitgarage exactly right.. I seen people replace the sensor not fixed the problem then say it's the wiring harness then say it's the EDC or ECU so on and so forth.. test and test again I say.. good video 👍
Maybe he's charging an hourly rate? He could have taken the sensor off to see all the crap inside, no need to break out dozens of scan tool toys for a job like this.
And that is why the bag was already opened, an, I know it all(only heard from when guessed correctly) has returned it previously.
We techs can diagnose and prove relatively quickly when not making a video of clarity for you. Please jump in on all videos and say proudly that you knew it was that part!
@@peterdatechmen5506 5.1KPa without the engine running? Why bother running a pressure differential? He then probed the power which also proved the sensor is giving a false signal but still felt the need to generate a signal. The term using a sledgehammer to crack a nut springs to mind. It doesn't take a genius to work out that a pressure sensor being exposed to exhaust gases is going to have a rough life. Most people would rightly take the sensor off to inspect it after seeing a spurious reading, he calls Chris Topher a "part changer" and attempts to publicly shame him by pinning the post, well he likes to call people names I have one for him too, a Bully! There is more than one way to a diagnosis.
"cause if I'm wrong I pay the part", wow, a honest mechanic with morals.
Hi this in my opinion was a awesome demonstration of the correct procedure of fault finding instead of doing gas work. The idea was not only show that the sensor had to be replaced but show and prove that everything else was fine before pointing at the clogged sensor.I have 25 years of experience and sometimes I rush things by being a parts changer and there was times where I was caught on the the wrong side.This video is purely based on theory for a apprentice/trainee. Well done I take my hat off for you despite the negative comments.
Really appreciate it mate thanks a lot Truly means a lot
So I have a BMW 335D & I suspect this to be the culprit as the high pressure does not change regardless of what the engine is doing.
Thanks for the detailed video on how far you go in trouble shooting problems. I wish I could have the confidence in knowing that all techs are as savvy as you are & as thorough in your trouble shooting process.
That was very helpful indeed, thank you very much, from a very pissed off kuga owner, with multiple dpf issues
Great video. Great diagnostics. Great call. Well done Leon. Super work.
Thanks mate
You are one clever dude. Love the videos and learn a lot. I used to get involved with a bit of diagnostic work but just spin filters and MOT these days. Keep up the good work.
Thanks a lot mate much appreciated
fantastic video. Very good job very well explained.
Love the diagnosis. You are doing it properly, and I learned a bit :-)
Thanks mate
Very good video helped to understand how to or where to find the problem
Only one question with the damage original sensor would the car had a higher consumption
Thank you for your video
Nice repair. Being able to verify before replacing the part is great
Thanks mate
Excellent video! Thank you so much for sharing it with us.
Anytime mate thanks for that for your excellent tools
This is a mechanic who knows his game 💪.
Thanks mate
I think he's just showing the standard, "test everything" method.
Did you cut the old sensor open to examine it, I would have.
I've had a similar problem with DPF readings... I've found you get carbon build up in the pipes and sensor and causing a faulse reading.. another way I like to check the sensor with a vacuum gun and potentiometer switch and read the live data... Good video 👌
Boom SORTED
beautiful diagnose !
Great video, got a knackered sensor and a split hose. On the sensor does the bigger pipe attach to the pre dpf pipe, and the smaller pipe go to the post (after dpf) pipe? Ripped the hoses off and can’t remember the configuration 😅 Cheers
Great video
I replaced this part and it solved the problem cost me £20 but my local garage said I needed a new DPF £700+ thank you UA-cam
I'm having the same problem my car is at the garage the mechanic says a new sensor my local parts place say it needs a new dpf
Excellent !
Amazing professional dignos well done. 👍
Thanks mate
I'm having the same issues with my T5 Transporter. My mechanic has done all the same tests and we are now waiting on the new sensor to be delivered. My van goes into limp mode after a few minutes of driving if you try to floor it. It won't do it as quick you're light footed. Doing the tests before changing parts is a must.
Good video BOOM
Boom SORTED
Your a bloody good smart arse with lots of toys to do lots of jobs, love the videos keep up your great work Leon
Lol thanks mate
Excellent job
Thanks mate
Ah your a smart cookie mate good job
Just wondering what you used to clean it?
top video good set of tools i need to invest in them
Thanks mate
thanks for sharing
Any time mate
Please may I ask where you got the pressure gauge from.
Great Vid Leon 👍
Thanks mate
Buum, nice troubleshooting skills. 👍🏻
Hello. Can a problem with DPF pressure hoses or sensor be the reason for too frequent DPF regenerations? Thanks!
Great job with the diagnosis. I would be very tempted to drive up from Tralee and see if you could sort out my problem for me on my 1.6 tdci Focus. If anyone can, I’m sure you can.
Lol thanks mate
Mine to do with the vaperiser on my focus 1.6tdci @stephenjohnbetts
Nice video Leon. 😁
Thanks mate
Leon thank you for your previous reply about issue with vw tiguan tdi smoking, bad mpg, diesel fuel contamination of engine oil, no engine management light+ no fault codes with cheapo ob2 tester
So i purchased a hex v2 / vcds scanned found 2 intermittent glow plugs which i have replaced and cleared via scan tool Fixed mpg restored / no fuel contamination of engine oil any more/ stopped smoking
Boom sorted 👍💪
Mike N hi when the engine is running the glow plugs are off so cannot understand how this impacted your mpg driving around. Can someone explain how this correlated, I’m interested.
Thank you
Fuel and oil contamination?
aqib2000 on a modern diesel the glow plugs run a lot of the time to keep combustion temps up for emissions
@@leexgx Yes when vw diesel engine dpf filter is being cleaned as in regen extra fuel is added via injectors on exhaust stroke some of which gets past pistons into sump oil
thank you for that
asalamaleikum - you have saved my caar from scrap. I was thinking to scrap it but now i am more happy. Thanks. Inshallah
Great diagnosis! Great video Leon. Have a good one.
Thanks mate
Hi john I have a Peugeot 3008 1.6 hdi 2010 giving me a anti pollution system fault but car drives fine ,do you accept cars for fixing are you actually machanic fixing cars?
Interesting fault, great diagnosis mate.
Thanks mate
I have an audi a3 2.0 tdi as soon as dpf gets to 11g soot content it jumps up to 21g and initiate a regen which complete perfectly would this be a pressure sensor issue no warning lights on dash no fault codes
Interesting...with a delta P type sensor, in the event 1 of the 2 sense lines ruptures. Is it possible because it is no longer sensing differential (ambient pressure one side of the diaphragm) this excessive delta could distort the sensing element. Off setting the Zero? Good Vid Thx
💪👍
Having some minor dpf issues lately made me monitor it for a couple of days. I was also curious of state of my DPF. It's a 2012 Mondeo 2.0 tdci. You can get so many opinions on the differential pressure that I am now even more confuzed if mine is good or not. So I get 0.0 kpa at idle. Driving in 5th gear, steady speed of 100km/h, 2000rpm, I get 2.0 - 4.0 depending on road incline, or last regen. 140km/h in 6th, I get around 7kpa. Full engine load at high speed gets up to about 17-18 kpa. Some say my dpf is blocked, some say it's totally fine. Does it sound like it's alright?
İ have the same problem fml its driving me crazy
Damn, i'm looking at getting a mark 2 2016 kuga diesel, this diagnosis looks complicated as Fk, like i could pay £££ just for the diag time. So now i'm thinking ''do i want to risk another diesel?'' living in a small village & only doing short commutes, both my zafira & vectra ended up with blocked dpf's.
But i do love my diesels, i was thinking i could buy a cheap scan bluetooth to phone thingy, im hoping such a thing will tell you when you are due a regen, ie.. a blast up the motorway. Really don't want a petrol. Would the tool give me such info?
broh how about the problem which says the diesle particulate filter differnetial pressure send is the minimum pressure not attained?
id it worth getting the dpf cleaned as part of routine maintenance
Nice diagnoses Leon. I can see you working for SpaceX monitoring EECOM and being polled for launch status and saying "Sorted!".
😂😂😂
Hi mate you got a link to that universal automotive pressure tester you've got looks a cracking bit of kit
Hi mate like I said in the video all the links in the description
best way to fix it is to get a petrol
😂😂
Diakun you do know modern petrol cars have a PPF? Petrol Particulate Filter which uses the same differential pressure sensing mechanism which is prone to the same high heat soot failure modes over the years of use?
Just dont buy ford shit
@@aqib2000 not all of them and very few before 2018. If it bothers anyone that much they source a car without one! Petrol particulate filters aren’t prone to getting blocked up like diesel particulate filters because petrol engines heat up quicker and run hotter than diesel engines, so more of the soot that’s collected in the filter is burnt off.
That type of Ford sensors are freaky. I've had them like that read and alter what looks like perfectly but with an offset voltage added to what it should be kicking out. The trouble is now I distrust the sensor immediately. I do have a known good sensor I keep to test with though. Good vid.
👍💪 let me know how it works out mate
Please I am having a problem on my 2005 Nissan Xtrail dCi and it is throwing the code P2002 and won't rev above 2000rpm. How can I resolve this problem?
Hi mate love your thought process, I have a fault with my vs sharan, I was a mechanic myself but for 18 year I have only been doing mot's, my car is constantly trying to return resulting in 23mpg instead of 45mpg, would you be able to do some consultancy ( paid of course ) or look at the car yourself. I would love to talk to you about this issue. Many thanks. Shaun
Regen not return
Citroën CX 2.0 HDI. Regeneration every 250 km too many short rides in town. With EGR Off regeneration every 900 km.
To check regeneration connect a control lamp to the rear window heater connection. When regeneration is active keep - lamp on - driving until the control lamp goes out. So you be sure regeneration proces is complete. If you not let complete the regeneration it will repeats over and over again. This means more consumption, degradation of te engine oil and faulty glow plugs.
💪👍
Nice one Geri, I have the same car and engine.Will implement an LED on the rear demister wire like you suggest 👍. Great tip
I've recently got my f30 318d dpf machine cleaned but the sign keeps coming back on, pressure sensor was changed, temperature sensor isn't going past 150 for some reason and its suppose to go to 240 in order for it to do regen... any advice?? Change temperature sensor??
Probley the vaperiser Thefoysol123
Hi 👋 please some advice I have same issue with my volkswagen passat b8 2,0 litre diesel 2017 model the car has 84k miles I du up 10k miles in one year us quite some time the particular filter show and with little bit of driving was going now it starts come every week and is not going with driving so I did some work I force self regeneration 2 and I clean the dpf without removing with this carbon clean I paid 250£ diden help at all so on every diagnostic the level of Ash is 000 or 003 % is very clean but the car stays for 1 or 2 days is high revision after that the particular filter light it will come up and if I dosen clean with driving it will go in limp mode I drop to main dealer and thay advice me to change dpf or take aut removing and clean I think is the sensor fold I wish some one to help me out
Can someone help me please? My reading every time I accelerate the presure go minus. I don't know why
We have been seeing lots of those sensors failing like that.
👍
Good Evening. I have the same problem. If I buy the sensor and replace it myself will it work normally or does it need to be done by a workshop?
first thing you need to do is make sure it is the centre at fault don't just replace it then you will need to program the new sensor into the car with a good scan tool
@@bodgitandleggitgarage OK thank you very much. The problem has been identified. I will go to my engineer to install it so that he can program it.
Where is your garage need mine doing
When you blow air through one end , should it vome out through the other one?
Took mine one out and i could blow air through one end and air will come out the other one
Where are you based in Ireland. Been thru 3 mechanics for similar issue with 2009 Volvo S40. Getting desperate! Live in N. Ireland btw
Could you help me out pal. On VW 2011 Passat b7 cay b, the dpf pressure sensor switch has 2 tubes, one connected/ going to dpf but where does the other tube go, mine is hidden underneath 1st tube on the clamp holder and not connected to anything, I get smoke coming from left hand side of the dpf ( not clamp side & only on under load ie driven not idle ) no light, no codes on vcds but the smoke is coming up from the bonnet after 20 miles. Arghhh
I make they are both connected to the dpf that's how it knows the difference in pressure ones connected to the front ones connected to the rear If you Ve got smoke coming out of one of them it sounds like the pipe is broken If you Ve got some live data you can see what the sense is the sensor is reading this will give you a good indication if you're a good indication if one of the pipes is broke
That’s how I found it was disconnected by checking the pipe that was going to dpf, it has a cover heat shield over it so took of the whole switch to check the pipes then found that one isn’t connected to anything and nothing to fit onto, plus pipe has no cracks or damage so think where the hell does this pipe get connected to
A very helpful fix for drivers would be if the car itself gave info on how full the dpf is . That way they could judge better when to take the car for a regeneration run . Long before the yellow drive to clear light comes on . This would help people manage the dpf and avoid costly repairs.
miti vac test is a very quick way to test the sensor values set at 200mbar 400mbar and 600mbar
İ have a problem with my dpf sensor to, we changed it, there is good pressure om it 3-5kpi on like 3k rpm and we resetted the code and learned the sensor to the ecu but the warninglight/engine light keeps coming back.. im getting sick of it can anyone help!? Code p2453-52 dpf sensor pressure diff. Aveo t300 2012 diesel. 1.3
Too much tech on cars nowadays.
Good set of toys you've got there 👍, Iam gonna get myself a new scan tool but only got a budget of approx £1000 any ideas would be appreciated preferably an Autel but to many cheap ones online which are obviously the Chinese ones, mixed reviews saying they are just as good cheers Kev 👍
Hi mate you've got lots of options there you can even go for a second-hand unit which would save you a lot of money as well well all depends on exactly what you need as update can be expensive for certain machines
@@bodgitandleggitgarage are you selling any 😉👍
Hi, my name is Christopher, I own an s-type jag, I think I may have this exact problem. I was wondering though what affect does this have on the car? my car goes into restricted performance. Living in Bulgaria, this is a bad thing because I need the sudden acceleration to get away from the slow and stupid drivers here. Fun and interesting video, BOOOM!
take care.
Lots of BOOMS. Have you checked the gas for leaks?
Boom!
Booom... Sorted :)
Boom
hi i have got 2007 2tdi glof i have no codes but i got managment light for dpf ,can you help
Hi mate it could be as you can see from the video too many things you will have to get it diagnosed properly if you don't have the tools you'll have to go to somebody that does there is no point guessing in this as it will cost you a fortune if you are wrong you can see what I had to do to make sure I got the diagnoses correct you do not just guess
Something doesn't add up with what you were doing at 7:38 if the fault was a damaged sensor. Or was the Hubitools thing not set to the correct scale?
Everything adds up perfectly what's the video again what's the end of the video the problem was the sensor was faulty it wasn't reading correctly it would only read from 50 mv upwards it would not read from 0 to 50 that's why by the wiring is ok the hubitools tool was ok I explained everything in the video
@@bodgitandleggitgarage no, but you said you had the correct voltage at 7:38. You said correct voltage but incorrect scan data
Not disputing the fix by the way
@@sdgelectronics what he did was get the pressure values mixed up...50mbar was the correct value at around 0.75v, 0kpa (0mbar) = 0.5v. 111kpa (1110mbar) = 4.5v
The sensor was blocked up with the diaphragm deflecting to 5kpa (50mbar) which is the 0.75v reading.
You should change the boom reactions to zoom because they can now zoom faster ha ha.
Good morning. I really need a little help before l get ripped off at Audi. I have a 2007 Audi a4 b7 2.0 tdi. And l the DPF Come up on my dashboard. Audi have told me l need to replace the DPF. @ £1100 odd plus the labour and vat. I only have a code reader. And got the code 2002. Which says DPF below criteria. Every time l clear the fault , it comes back straight away. Can you please if point me in the right direction. Any help here would be most gratefully received.
hi mate as you can imagine it's going to be impossible for me to guess and tell you what is wrong without looking and diagnosing the car properly but I would suggest you go to somebody who can do a forced regen or clean your DPF the chances that it is just blocked and can be saved is very high but it will need to be diagnosed properly before that no point me saying anything as I don't want to put you in the wrong place and cause you money and especially to waste your money but I would say it can be cleaned
Jeez i wish we Had GOOD HONEST Mechanics like YOU down South Wales, I have a VWW POLO 1.6TDI 2012 with just 32,000 [Genuine] Miles But because the OLDER GENT before i bought the car Just ran it at basically Idle To shops I had DPF Light come on I ran it in 3rd up n down Motorway and it Cleared [JOB DONE] Not soo fast, It happened again But this time the Glow Plug Light also came on and it went into BIDEN MODE [LIMP] i TURNED Off the Ignition /TURNED OVER ENGINE ALL lights out and out of BIDEN[LIMP]MODE But it;s come back and now it;s STUCK in Limp WTFARCK.
Same unit as fitted in Volvo V50, tap the pipes on clean blue roll and water comes out, condensate gets in them,
Kevin
👍💪
You may find the liquid which comes out isn't water/condensation but actually acid. There's been issues with the rubber pipes degrading which then allows the exhaust gas to react with the rubber causing an acid to be produced which goes into the sensor and buggers them up.
Ah BOOM!
Sorted....
boom
i wished you was my mechanic 👍
I'm nothing special mate
WOW!!!!!!!!!!!!!!!
Boom
Similar problem here... long list of faults when looking at Mode 6, as well as up to 11 permanent fault codes... all related to EGR and DPF.
Check engine light never comes on
In fact no on dash warnings at all
Realized I have a digital speedometre that taps into the OBD2 port,
Unplugged it, boom, everything in mode 6 and normal codes disappears
BOOM!!
Boom
Excellent diagnosis.
Would hope the customer would be understanding with a car that's done 258k miles. Lol.
Thanks mate
13.30 wow you have 3 hands which is very handy being a mechanic 😜
hahahahaah
@@bodgitandleggitgarage Hi Leon, wonder if you could help me with this one, I have a V50 1.6d and I have an issue where the car will often hesitate on light acceleration, I unplugged the electrical connector for the egr valve and problem went away so I cleaned the egr valve but problem was still there so then I suspected bad egr valve and replaced it, still does the same, I've had the car plugged in recently for another reason and they said the dpf pressure sensor is reading 0 all the time, could this be causing my hesitation issue do you think? Sorry it's a bit long-winded 🙄
@@kevr4698 hi mate it's certainly a possibility you are going to have to look at the DPF pressure sensor it should not be reading 0 all the time
@@bodgitandleggitgarage cheers mate, much appreciated 👍
Autel changes scale automatically, can be helpful and a PIA
Yes mate still getting used to it
Surprised you’ve never seen this before, by far the most common failed component when it comes to DPF issues on fords (second to blocked vaporisers). Around 0.42v with no pressure, 2.00v at 4.5psi. First test I do
Of course I've seen Senses Fail I just haven't seen them fail in this way before
please cut the old sensor open to see what went wrong
Will do
so what do u do when its bloked been ta ford and they 6 k ta frkk the car aint worth it
Do you not calibrate the new sensor using the functions? Gotta love a ford dirty diesel 😆
That's going to be a separate video coming very soon
@@bodgitandleggitgarage nice one .... just checking lol
@@SYDiagnostics it's a lot easier for people to find when you separate videos you can just title it it's just easier
@@bodgitandleggitgarage nice one, I'm still learning all this and starting to aim my videos towards a different demographic, steadily building views and subs. Just put a new video out today too
Thanks great video- one criticism- it’s a bit wordy 😀
BOOM💣💣💣🔫🔫🔫
SORTED
BE SAFE AND HEALTHY LEON
Thanks mate
Can you tell me where the tester came from please?
I mention in the video lots of times I also say everything to the video description it's from hubitools
can't they make cars less complicated?
Hi I have Mitsubishi Fuso canter 4p10
Fault codes
Spn520411 fmi 31
Spn520410 fmi 31 anyone please know these codes?
Thanks
My God! You mean that the system doesn’t self check itself for zero baseline. Quality science used there by the programmers. Must be modern science!
He might not have had this fault before fellas at that mileage a good idea to change anyway
I’m shocked You’ve never seen a Sensor fail like that. . .
I spoke to a lot of people I know when I spoke to have seen a sensor to fail in this way
BOOM! 0!
Sorted
Common problems