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DPF Issue with 2009 Honda Accord 2.2 Dti


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#1 Mohsin

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Posted 01 January 2014 - 01:06 AM

Hi,

Today while driving locally at 30mph i had a warning symbol come up on my car's dashboard. I did not know what it was until i checked in the handbook, apparently it is the DPF (check system). My car is a 2009 diesel saloon executive honda, it has done 90,000 miles, serviced annually at honda dealership.

Does anyone know anywhere local where i can get the particle filter unblocked from as in the book it indicates that my particular filter is blocked, the filter needs repairing or replacing. Now i know the cost to replace the filter is high, would this be necessary? I am based in slough and i was wondering if there was any where close by that i could go to get this particular filter cleaned/unblocked, rather then going to the dealership who will charge a arm & leg for this.

Any help would be really appreciated.


thanks
Mohsin

#2 F6HAD

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Posted 01 January 2014 - 09:57 AM

We do both regeneration and removals. Have a look at our website and Facebook page.

I'm in the M4 corridor most weeks but am out of the country until 17th Jan if you can wait.
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#3 Mohsin

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Posted 01 January 2014 - 10:09 AM

Hi Fahad,

Thank you for your reply, what is your website address?

Thanks
Mohsin

#4 F6HAD

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Posted 01 January 2014 - 10:23 AM

Click on the link in my signature mate.
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#5 Mohsin

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Posted 01 January 2014 - 11:00 AM

Hi Fahad,

How much will it cost to regen my dpf filter and when can you do it? Ideally i needed this done as soon as possible? Also do you know of any other company that does this?

Thanks
Mohsin

#6 brett

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Posted 01 January 2014 - 11:03 AM

Hi Fahad,

How much will it cost to regen my dpf filter and when can you do it? Ideally i needed this done as soon as possible? Also do you know of any other company that does this?

Thanks
Mohsin

Mohsin are you 100% it needs a regen or just needs to be booted down the motorway to clear the DPF.
Normally the car will give you a warning light to do this before it gets to this state for a regen
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#7 Mohsin

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Posted 01 January 2014 - 11:10 AM

Hi Brett,

The symbol that has come up is the dpf filter with the exclamation mark, when i read on the book it says the dpf filter is blocked. The funny thing is the dpf filter symbol which comes on with no exclamation mark did not appear, as this is the symbol that the handbook indicates requires long drive at 70mph. This warning symbol never appeared first, only the other one did.

Can you recommend what i should do? Go to dealer? Does the dpf filter require forced regen or shall i just drive the car on a long journey today.



Thanks
Mohsin

#8 brett

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Posted 01 January 2014 - 11:16 AM

Hi Brett,

The symbol that has come up is the dpf filter with the exclamation mark, when i read on the book it says the dpf filter is blocked. The funny thing is the dpf filter symbol which comes on with no exclamation mark did not appear, as this is the symbol that the handbook indicates requires long drive at 70mph. This warning symbol never appeared first, only the other one did.

Can you recommend what i should do? Go to dealer? Does the dpf filter require forced regen or shall i just drive the car on a long journey today.



Thanks
Mohsin

I'm not an expert on this but if the car has not gone into Limp mode it might be worth going on a long drive to see if it clears.
Someone hear will confirm this.
Also have you got any warranty on the car if so they should do a regen for free
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#9 richsprint

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Posted 01 January 2014 - 11:23 AM

Sounds like you just need to get a forced regeneration done at a Honda dealer, they plug the car in and send the command to force regenerate the DPF which should clear the blockage. They can also check your car has the latest software updates on, as the DPF software has been changed a few times to help stop this problem, updates are free also. Ring several dealers for the best deal, in your area you have about 5 dealers within 20 miles.

I've read they charge anything up to £120 for a forced regen, so not too bad.

Longer term, if you only do urban driving, then a modern diesel with a DPF isn't for you, you need a petrol car. DPF will keep blocking up with soot.

Also only use good brand diesel, ultimate and vpower etc, check your car has the right Honda approved 0w/30 low saps oil, as anything else can cause DPF problems. DPFs are however a service item, so they do wear out after 90-100k miles, so it might need changing.

Hope it gets sorted with minimum wallet surgery…
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#10 Mohsin

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Posted 01 January 2014 - 11:37 AM

Sounds like you just need to get a forced regeneration done at a Honda dealer, they plug the car in and send the command to force regenerate the DPF which should clear the blockage. They can also check your car has the latest software updates on, as the DPF software has been changed a few times to help stop this problem, updates are free also. Ring several dealers for the best deal, in your area you have about 5 dealers within 20 miles.

I've read they charge anything up to £120 for a forced regen, so not too bad.

Longer term, if you only do urban driving, then a modern diesel with a DPF isn't for you, you need a petrol car. DPF will keep blocking up with soot.

Also only use good brand diesel, ultimate and vpower etc, check your car has the right Honda approved 0w/30 low saps oil, as anything else can cause DPF problems. DPFs are however a service item, so they do wear out after 90-100k miles, so it might need changing.

Hope it gets sorted with minimum wallet surgery…



#11 Mohsin

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Posted 01 January 2014 - 11:41 AM

Hi Rich,

Thank you for the advice, so should i just take the car to the main honda dealer in slough? Or shall i just go on a long drive? How often do i need to drive the car on long journey to keep the dpf block free? The symbol came on yesterday evening and since then i have not driven.

Brett- the car has not gone in limp mode and no longer in warranty although i have a 4 year tailored service plan with the car. I have 3 years left on that.


thanks
Mohsin

#12 richsprint

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Posted 01 January 2014 - 12:08 PM

Sorry I don't know all the answers, thats for you to work out. This is why I have a petrol, none of these problems.

But I'd ring a few Honda dealers and ask what they charge for a forced regen, prices vary, lots around you.

Might be worth taking it on the motorway, keep it in 5th or 4th to keep the revs up, it might, clear, 70mph at least.

Edited by richsprint, 01 January 2014 - 12:08 PM.

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#13 F6HAD

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Posted 01 January 2014 - 12:59 PM

Have a good read through the threads on dpf's to understand how they work.

No software update in the world will cure this problem, as it relates more to the driving profile of the car than any particular component failure. The very basic design of DPF technology is flawed and relies on a certain regular pattern of long distance driving to ensure it remains within threshold levels for constant regeneration.

You should never see the DPF light. If the light is on it's because the system has been unable to complete a successful regen under normal driving conditions.

You could try a good long blast down the motorway in 4th gear at around 2200rpm for 10 miles. It may temporarily unlock it but in my experience once you see this symbol it will keep happening.

We charge £60 for a forced regen and full diagnostic with engine health check and drop me a line to enquire on pricing for a complete removal with Stage 1 or 2 Remap including DPF and EGR OFF.

We would need the car in Bradford for the DPF removal.

Plenty of examples of our work and what's involved on our website and Facebook page.

Hope that helps.
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#14 Mohsin

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Posted 01 January 2014 - 01:35 PM

Hi Fahad,

Thank you for your reply, does a forced regen fix this issue and i have been told you should not need to chnage the dpf filter as the filter can be unblocked.

Thanks
Mohsin

#15 F6HAD

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Posted 01 January 2014 - 02:05 PM

Nope it just regens it but there are no guarantees. Honda will give you no guarantees with a forced regen either and you will be charged every time you need one.

Your options are to either regen, replace or remove.

All a forced regen does is try and bring it back down to acceptable soot levels within threshold but it's still a used cartridge which will have carbonised deposits that cannot be shifted.
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#16 mikeutton

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Posted 26 October 2014 - 06:53 AM

Hi

My dpf light came on recently so i put dpf flush, redex and thrashed the car down the motorway for 4 hours but it is still in limp mode.

I am resigned to getting rid of the dpf but want to find someone near to Nottingham Derby or Leicester to do the removal and ECU remap. Can anyone suggest anywhere please?

The alternative is to split the dpf, take the innards out then re-weld it, has anyone done this succesfully before?

I am desperate to get this fixed Asap

#17 F6HAD

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Posted 26 October 2014 - 10:45 AM

If you simply remove the internals without correctly clearing the ecu ash counter first and remapping the ecu, your car will be stuck in an endless loop and you have a major problem on your hands.

There are no shortcuts here, do the job properly.

Drop me a line for details if you are interested in us doing the work.
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#18 Dorsetmark

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Posted 31 October 2014 - 07:39 PM

Hi

There is an alternative to removing the DPF filter. I have just had my 2010 Accord 90k go into limp mode with DPF with ! indicating that the filter is full. I didn't get the first warning. Before I bought he car I knew it had to have a forced regen, and for over a year it was great, but I was doing 100 miles a day high speed commute, now I am retired I am doing local short journeys, so I was half expecting this. My local garage tried to force the regen and this didn't work. Then then removed the filter and sent it to a company called DPF Clean Team, they clean and test the filter, removed 75 grams particulate, reduced the back pressure from 0,089 to 0.016 millibars. The filter is set to my local garage and the ECU is reset. Much cheaper than a new filter. I know lot of companies off removal but if this is spotted at the MOT it is now a fail, plus the problems with using revised ECU software etc etc. Also by removing it this filter it invalidates its type approval which makes it illegal to drive, although I doubt that you would ever be caught, but it could invalidate your insurance. My garage charged me £354 inc VAT. Still expensive but not as bad as I thought it could be. The filter has a 6 months warranty, beyond that they offer a reduced charge if it needs doing again. Only picked the car up today, so early days, but it the car does another 90k before it needs cleaning again I'll be happy. If I get any more problems I'll report back to the forum.

#19 F6HAD

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Posted 01 November 2014 - 07:48 AM

Unfortunately this is only another temporary solution and once you've seen the inside of a DPF you will know why nobody can actually accurately tell you what the actual ash and soot content of your DPF cartridge is.

The ecu is simply estimating according to temperature and pressure differential readings.

Regarding MOT, I'm yet to hear of a failure.

I hope it lasts for you, but it's not a permanent solution and another way of delaying the inevitable. Plus you are still sending soot back up to the turbo which is going to lead to build up inside the vanes.
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#20 Dorsetmark

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Posted 01 November 2014 - 09:01 AM

Hi

I am quite impressed with the way these filters are being cleaned, they use an ultrasonic bath and chemicals. I understand this cleaning system as we use it on scuba equipment. They do a filter test to check it against specification. I can see why this shouldn't reset the filter back to near original condition. As for removal this is what the AA says...........


Removal is not a legal option
It is suggested from time to time that the answer to failed DPF regeneration is get the DPF removed from the exhaust system rather than pay to get it repaired/renewed. Indeed there are companies advertising just such a service including reprogramming of the engine management software, but is it legal?

DPFs are fitted to meet European emissions regulations designed to reduce vehicle emissions of particulate matter (soot) associated with respiratory disease and cancer.

According to the Department for Transport, it is an offence under the Road vehicles (Construction and Use) Regulations (Regulation 61a(3)) to use a vehicle which has been modified in such a way that it no longer complies with the air pollutant emissions standards it was designed to meet. Removal of a DPF will almost invariably contravene these requirements, making the vehicle illegal for road use.

Insurance
You must notify your insurer if the vehicle is modified but such a modification could in turn invalidate any insurance cover because it makes the vehicle illegal for road use.

MOT
From February 2014 the inspection of the exhaust system carried out during the MOT test will include a check for the presence of a DPF. A missing DPF, where one was fitted when the vehicle was built, will result in an MOT failure.

With an original equipment DPF removed from the exhaust the car may or may not pass an MOT smoke test - a Euro V (September 2009 diesel) is more likely to fail than one designed to comply with earlier emissions standards.