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Injectors and the DPF

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Right, my car needs new Injectors which was confirmed today from my local dealer.

So.....this got me thinking

A lot of members have complained, me included that there 170 PD TDi engines are always regenerating and the DPF filter is getting full so the light on the dash comes on. I was Informed by a chap at Skoda UK that the fault with the injector's was that with them being bathed in oil that some of the oil was leaking into the injectors causing a build up of sludge ect with in the injectors.

Therefore diesel and oil was being burnt within the engine, oil causing more soot which in turn was clogging up the DPF. This would also explain the increase of MPG due the new injectors not being clogged up with sludge. I put a tin of JLM DPF cleaner into my fuel tank and the light hasn't come on since. Do you think this had "cleaned " the injectors in some way allowing more "clean" fuel into the engine.

Does all that make sense?

The logic makes sense to me but I can only run in horror and fear that his thread is going to launch

684_467.jpg

Does the JML cleaner say what's actually in it on the container? Just wondering if its similar in composition to the additive that PSA/Ford DPF diesels add to their own fuel tanks? That doesn't clean the injectors AFAIK, it just allows regeneration of the DPF to happen more easily and effectively at lower exhaust temperatures. I suspect manually adding some of that additive to the tanks of other makes would clean the DPF on those too, which may be what the JML stuff is perhaps.

  • Author

Does the JML cleaner say what's actually in it on the container? Just wondering if its similar in composition to the additive that PSA/Ford DPF diesels add to their own fuel tanks? That doesn't clean the injectors AFAIK, it just allows regeneration of the DPF to happen more easily and effectively at lower exhaust temperatures. I suspect manually adding some of that additive to the tanks of other makes would clean the DPF on those too, which may be what the JML stuff is perhaps.

Technical Details

  • JLM DPF Cleaner (available in 100ml) is added to the fuel tank every service interval to for maximum cleaning power of the Diesel Particulate Filter (DPF).
  • It cleans blocked diesel filters (1st stage warning) and enables full diesel filter regeneration in difficult drive cycles (ie. city driving).
  • * JLM Diesel Particulate Filter Cleaner - Cleans dirty Diesel Particulate Filters.
  • * Helps Prevent Diesel Particulate Filters blocking.
  • * This is the very latest additive available especially designed to improve the performance of, and to assist in the cleaning of Diesel Particulate Filters (DPF), ensuring long term durability of diesel filter systems.

Product SpecificationsProduct InformationBrand:JLMManufacturer Part Number:JO2210

Product Description

Product code: KAL-JO2210. JLM Diesel Particulate Filter Cleaner JO2210 100ml. JLM DPF Cleaner (available in 100ml) is added to the fuel tank every service interval to for maximum cleaning power of the Diesel Particulate Filter (DPF). It cleans blocked diesel filters (1st stage warning) and enables full diesel filter regeneration in difficult drive cycles (ie. city driving). Product Features. * JLM Diesel Particulate Filter Cleaner - Cleans dirty Diesel Particulate Filters. * Helps Prevent Diesel Particulate Filters blocking. * This is the very latest additive available especially designed to improve the performance of, and to assist in the cleaning of Diesel Particulate Filters (DPF), ensuring long term durability of diesel filter systems. * JLM Diesel Particulate Filter Cleaner (JLM DPF Cleaner) is available in 100ml shots. HOW JLM DPF WORKS. * JLM's DPF Cleaner has many benefits. For best results use as a preventative by simply adding the 100ml JLM DPF Cleaner dose to the diesel tank when servicing. * The additive operates in two ways. * First, it uses a catalyst to adhere to the soot particles during combustion, lowering the temperature at which they can be burnt off at. * Secondly , the additive also increases the fuel burn temperature, in turn increasing the exhaust temperature , which increases the temperature inside the soot trap ,burning off the soot, regenerating the filter. * JLM DPF Cleaner burns of the soot at lower temperature so it will not cause a 'runaway' regeneration, or cause a filter failure due to excessive heat during regeneration. * Adding JLM DPF Cleaner 100ml to the diesel tank every 10,000 kilometers & every service interval will ensure the filter regeneration takes place fully with all DPF types, in all driving conditions. Dependent on soot load & filter condition & age. Nielsen CDG Recommend JLM Product Code- KAL-JO2210 Bar Code- 8718274350999

Whats a DPF again? :rofl:

Ps

I never added additives :no: to diesel in my life, nor do I intend to.

Edited by dieseldogg

I'd never heard of it before but after googling I found loads more info about it on their website:

http://www.dieselparticulatefiltercleaner.com/Home/home.html

They actually sell a version of it for re-filling the PSA auto additive dosing systems, so it does appear to be basically the same stuff. If so, yes it does work, or at least the OEM cerium diesel additive that PSA use works ( more or less! ).

  • Author

The logic makes sense to me but I can only run in horror and fear that his thread is going to launch

684_467.jpg

I like worms...Mmmmmmmmmmmmmmmm Yummy

I like worms...Mmmmmmmmmmmmmmmm Yummy

Do they do salted ?

Edited by deecee

Right, my car needs new Injectors which was confirmed today from my local dealer.

So.....this got me thinking

A lot of members have complained, me included that there 170 PD TDi engines are always regenerating and the DPF filter is getting full so the light on the dash comes on. I was Informed by a chap at Skoda UK that the fault with the injector's was that with them being bathed in oil that some of the oil was leaking into the injectors causing a build up of sludge ect with in the injectors.

Therefore diesel and oil was being burnt within the engine, oil causing more soot which in turn was clogging up the DPF. This would also explain the increase of MPG due the new injectors not being clogged up with sludge. I put a tin of JLM DPF cleaner into my fuel tank and the light hasn't come on since. Do you think this had "cleaned " the injectors in some way allowing more "clean" fuel into the engine.

Does all that make sense?

Mine is due for new injectors tomorrow so I too will be interested to see what happens. When I took delivery of my car back in early 2007 I had 3 months of hell. It was rare to drive more than 75 miles without either the DPF or glow plug lights coming on even during motorway driving. No faults were recorded and dealer was as frustrated as me. Eventually the ECU was changed on the advice of SUK - I then had a different car and have only had the DPF light come on once since then and I suspect that was due to being stuck in a major slow moving Motorway snarl up for 3 hours!

Two other things - my dealer is also a Superchips agent and suggested driving quality and fuel consumption was likely to show an improvement in a modified car. I went the Bluefin route and to say I am impressed is an understatement. Performance, flexibility and fuel consumption is fantastic - ignoring the first 1000 crap miles my car has now averaged just on 49MPG for the last 47,000 miles. The other thing I was 'unofficially' recommended was Millers diesel additive, this however was not a surprise to me as I have used it since 1993 in all my previous diesel cars.

Back to the original question - only time will tell so I will keep you all posted on what happens from Thursday onwards.

  • Author

just to add:-

Lots of cars have had so called faulty sensors replaced due to the DPF so called clogging up

" could this be linked to the Injector Problem"

Just a thought

My vRS is now back from dealer fitted with shiny new injectors and harness! It definitely feels different - much smoother and far better pickup. Luckily before taking it to have work done I reloaded standard mapping from my Bluefin just in case...... Worksheet shows recoding so waiting for SC to confirm if a Bluefin upgrade is needed before reloading my Bluefin remap.

I understand the logic but a few people have had more DPF issues since having the injectors swapped, myself included.

I had never seen the light come on in the 9 months previous to the injector change but it came on a couple of times afterwards and it seemed to be doing regens all the time.

Although it does seem to have calmed down now. The light hasn't been on for a while and its not doing regens every 5 mins *fingers crossed*

  • 3 months later...

My car is due for the recall for the injectors i have had the dfp deleted and the car is remapped. If they change the injectors will the map be deleted or will this cause me problems?

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