hi im running a fiat doblo 19 multijet on a 07 plate, got a recurring problem with the engine failure light coming on. Diagnostic code shows 2002 diesal particulate filter efficiency below threshold. Bank1
On control module $10. Could anyone tell me if they have come across this and whats req to fix it. P.S where is this filter located.

Hi,

2002 is a non-fiat code (P2002?) & filter is on the exhaust.

My advice is to let a dealership deal with this (unless you have fiatscan) as the DPF parameters have to be carefully monitored before a correct diagnosis can be made.

could I check these perameters using a Gendan (EOBD) scan tool, and what do i need to go into to do it.

gdove said:

could I check these perameters using a Gendan (EOBD) scan tool, and what do i need to go into to do it.

Click to expand...

The DPF isn't covered by EOBD, so a standard tool wouldn't cover it.
If FiatECUScan covers your model that's probably a better bet.

I had the "engine failure" message on Wednesday. I immediately took it to a garage in a small village that I was driving past. They read the code, said DPF needed a regen and performed the regen. The mechanic said that if the light stayed off for the remaining 125 miles of my journey then the DPF was ok, if not then I might need a new one.

The light stayed off, DPF is ok! The mechanic said that he had done an identical regen 6 months before, the "engine failure" message would seem to be a bit of scaremongering designed to lead you to the dealership.

Try a good independant garage, see what they say.

(The garage I was at was Belmont Motors, Wix, Essex)

Robin_Whitby said:

the "engine failure" message would seem to be a bit of scaremongering designed to lead you to the dealership.

Click to expand...

I think you are being a little harsh. A DPF clogging/blockage etc. is an important issue to attended to as quickly as possible. Likewise for engine related component failures (e.g. Lambda sensor causing over fuelling and burning the CAT out at great expense.)

Many of us here have sufficient knowledge and experience to "read between the lines" etc. and are able to make sensible judgements. Most car drivers have little or no knowledge so have to be given SIMPLE and LIMITED IN SCOPE messages to get them to get their cars to a garage to have (hopefully) someone more experienced and with appropriate kit (if required) to determine the real state of the vehicle.

Of course the ECUs/control units could issue more meaningful messages (which they do like: Front LHD open) but in reality many of the 1000s of error messages that could be posted would mean nothing to many and they would have difficulty in try to relate the message to the garage over the phone. Garage would almost certainly say "bring the car in for us to look at". (Engine Failure - Return to Dealer)

Hi do you think there's a problem with the DPF on the Doblo 1.9 multijet. This is the first fiat ive owned and other than the DPF issue im very pleasd with it I would be very interested on your thoughts and from any other members who own a Doblo 1.9 multijet 07-2010

I have no experience of the Doblo DPF.

However I have a Croma 2005 on 50K miles with no DPF issues.

What is critical for diesel DPF filters is getting sufficent mileage between engine starts and stops to ensure that the engine/ECU is able to do a propper regenerative cycle.

Short start/stop journeys for vehicles fitted with DPF filters is the kiss of death for the DPF and/or the engine (if oil dilution by excess fuel takes places).

With kit like FiatECUScan or Fiat Examiner or other professional diagnostic kit then DPF parameters can be read and DPF regenerations enforced.

Longlife Exhaust Systems


Improve your Diesel Car Performance

Modern Diesel engine cars are fitted with Diesel Particle Filters (D.P.F.).

With the constant “Stop/Start” of normal urban driving D.P.F’s will clog up with soot. The engine management will regenerate the DPF by injecting a larger amount of fuel to raise the temperature to burn off the soot. Regeneration cannot clear all the soot from the DPF so eventually the car will lose power, increase fuel consumption resulting with the Engine Management System placing the car in “Limp Mode”.

2 Options

Remove and replace the D.P.F.
Example: Citroen Xara Picasso 1.6 HDI D.P.F. £425.26 inc vat
Fluid £104 inc vat
Plus removal and fitting !!!!!

2) Alternative: Remove D.P.F. and fabricate a replacement Stainless Steel Pipe, read and re-map ECU to standard program or re-map to a performance enhanced program.
Gains
No future expense of D.P.F.
Increased performance and economy
No effect on emissions

Example: Citroen Picasso 1.6 HDI 90 BHP increases to 112 BHP
Torque 215 Nm increases to 247 Nm

Torque increases will result in higher miles per gallon

Call Dean 0121 643 3320
[email protected]

citds,

this is blatant advertising..

No one will have problems with thir DPF unless they only drive short trips or drive like a granny.

When I got mine I had warning messages about DPF.

I ran a Fiatscan forced regen did not help so I put an injector cleaner in the tank and went for a long thrash up the motorway.

Holding the engine at 3000+ revs for an hour or two will clean out all the crud.. however keep your eyes peeled for the nice Mr Plod man.. 3000 = 80+ MPH (120BHP 08 Doblo)

No problems now I try to give it a 20 min 80+ run each week and now DPF nice and clear!

Hi which injector cleaner did you use, ive seen a diesal particulate filter cleaner (granville) on Ebay this is also just added to the tank, wot's your thoughts on this, do you think this does the same type of work. My doblo is on a 07 with 88000 miles on the clock and other than the DPF issue ive had no other probs.

additives work but over time

gdove said:

Hi which injector cleaner did you use, ive seen a diesal particulate filter cleaner (granville) on Ebay this is also just added to the tank, wot's your thoughts on this, do you think this does the same type of work. My doblo is on a 07 with 88000 miles on the clock and other than the DPF issue ive had no other probs.

Click to expand...

I have no experience with the Granville product so not sure, I expect they are nearly all made from similar compounds so should do the trick.

Thing is if your injectors are blocked or gummed up then you will make more smoke so blocking the particulate filter up quicker.

I have used and can recommend Millers Desiel Ecomax which really cleans the injectors and provide a good power boost too

This time I used STP diesel Injector cleaner. One shot 250 ml added to tank at £2.99 from local car spares shop.. it did the job.

DPF's will only re-generate so many times and dealers are charging £900 + vat + fitting, could be worse VW's ar £1100 + vat + fitting !! I do not see the point of DPF's they stifle our engines and hoodwink us into thinking they are good for the environment. How can they be good for the environment? To re-generate every 1200km the ECU instructs the engine to over-fuel to raise the temperature at high speed, this blows some of the crud out of the exhaust pipe, so who pays for the fuel?

Putting into fiat dealers tomorrow having a diagnostic test done (£60.00) just to be on the save side. Light back on again today, car also seems to lack power whilst its on so getting a bit sick now I will post results of test tomorrw.

citds,

The regeneration only happens when the on board computer "sees" a large preasure difference between the ends of the DPF filter indicating its blocked.

Fiatscan can reset the DPF regen counter, making the system think its got a new DPF filter installed and I think its also automatically reset when you reset the oil change (% oil degraded) option in Fiatscan.

Certainly there are stories of the DPF not regenerating if this is not reset.

I am not a tree huger by any means.. however I remember going to London, after the "clean air act" which forced people to use smokeless coal and so stopped the Thick smog's that killed lots of people every winter, however the amount of smoky buses and taxi's filled the air with almost invisible fog of particulates which caused instant thick black snot.

These fine particulates penetrate deeper into the lungs than even tobacco smoke and are highly cancerous.

Hence Particulate filters.

Shortly the MOT test WILL include a smoke test sensitive enough to detect the removal of the particulate filter.. when your vehicles WILL FAIL!

I am sure some MOT testing stations will already be installing the upgraded kit.. so its going to be pot luck which garage will fail a DPF removed car and which will pass it.

Hi fiat dealers carried out diagnostic test, found DPF blocked. To repair it would require, removal of the DPF, clean using chemicals,refit, change oil and filter reset fiatscan to carryout regen.
Cost £60.00 to carry out diagnostic test to trace fault plus £365.00 to repair it.
Was also informed fiatscan does re-set reg count at each oil change.

I have a late 2007 1.9 multijet and I don't think it has a dpf. Its the 105 version. I think the 1,3 has but not sure about the 120 version of the 1.9 multijet.

yeah thats my model 2007 1.9 multijet 120, fiat should supply a fiatscan with these cars cause unless you use main dealers you seem to be right up the creek. Every time you have a oil change you should re-set the oil change (oil degraded) option in fiatscan. BET NOT MANY PEOPLE NEW THAT.

Not many non-Fiat garages have the kit to reset the oil degraded counter..

The warning light will not come on until you have done some 30,000 kilometres.. and hopefully no one is daft enough to go that far without changing their oil at least 2 times!

I can totally recommend Fiatscan. Its an essential peice of kit for any Fiat car.

No Fiat dealer will supply it with a car .. how could they rip you off otherwise?

Only joking.. I am sure no Fiat dealer would think of ripping off a customer...

I recommend all Fiat owners get a copy of Fiatscan and then they can have their cars serviced anywhere and not get the oil degraded error.

Alternatively check to see if your garage of choice has the software.. I know Fiat Dealers have a much more sophisticated Genuine Fiat version..

But they charge £50 each time they reset the Oil degraded counter..

Fiatscan costs about £100 with a set of good leads.