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Old 18-07-2009   #16
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Re: "engine failure" warning & lack of power

Injectors will pump more fuel to increase temp for example and switch on air-con,HRW etc to increase engine load thus temperature.

Despite what is often said the Fiat DPF system is very good but often mis-understood...dare I say even by some garages?

As said problems can arise from daily short trips to the shops (few miles) thus disrupting regeneration when it occurs.
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Old 19-07-2009   #17
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Re: "engine failure" warning & lack of power

Hi have just joined site and glad to find i,m not the only one having probs with DPF, thought i was paranoid.

My 1.9 MJ started playing up March 09 should say it is a taxi 07 plate 108k miles now.
Warning light came on took it to main dealer not the one i normally use diagnosed EGR valve faulty booked in to be replaced along with MOT and sevice.
Everything great until 2nd week in June light came back on, went to my local Fiat dealer this time as he is closer to where I stay.

Explained the prob, put it on the examiner diagnosed DPF clogged 108%? did see this on the examiner screen. Did a forced regen cleaned the filter went on my way no charge.

Three days later light came back on so back to dealer back on examiner result as above but also did software update that first dealer (arnie clark) should have done
now happilly on my way.

Two days later light comes on again back to dealer back on examiner DPF clogged again, examiner could not do forced regen kept aborting told needed new DPF (925+vat) it,s my livelyhood so told them to go ahead.

New DPF duly fitted got 1 full day's work in b4 light came back on back to dealer
usual story filter clogged left it with them Thurs 16th got it back Fri 17th worked that day everything great went out Sat 18th to work coming home at night light came on
loss of power just waiting till 1pm to go back to dealer.

Sorry for the saga.
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Old 19-07-2009   #18
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Re: "engine failure" warning & lack of power

Interesting. OH has a meriva & there are a few threads on the Vaux forums where engines have blown up. The cause has been attributed to the DPF not being regenerated - causing a blockage- causing diesel to get into the sump...
There are no warnings, just a sudden increase in rpm as you are driving along. Only way to stop the engine racing is to come to a dead stop in gear, & pop the clutch to stall the engine.
Some of these engines have only a few K on them
Vaux aren't interested as they blame the drivers for ignoring warning lights, yet they all say there were no lights! and the computer shows the fault clearly.
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Old 19-07-2009   #19
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Re: "engine failure" warning & lack of power

Quote Originally Posted by kipper28 View Post
Hi have just joined site and glad to find i,m not the only one having probs with DPF, thought i was paranoid.

My 1.9 MJ started playing up March 09 should say it is a taxi 07 plate 108k miles now.
Warning light came on took it to main dealer not the one i normally use diagnosed EGR valve faulty booked in to be replaced along with MOT and sevice.
Everything great until 2nd week in June light came back on, went to my local Fiat dealer this time as he is closer to where I stay.

Explained the prob, put it on the examiner diagnosed DPF clogged 108%? did see this on the examiner screen. Did a forced regen cleaned the filter went on my way no charge.

Three days later light came back on so back to dealer back on examiner result as above but also did software update that first dealer (arnie clark) should have done
now happilly on my way.

Two days later light comes on again back to dealer back on examiner DPF clogged again, examiner could not do forced regen kept aborting told needed new DPF (925+vat) it,s my livelyhood so told them to go ahead.

New DPF duly fitted got 1 full day's work in b4 light came back on back to dealer
usual story filter clogged left it with them Thurs 16th got it back Fri 17th worked that day everything great went out Sat 18th to work coming home at night light came on
loss of power just waiting till 1pm to go back to dealer.

Sorry for the saga.

Well I'm not an expert but I'd say the problem isn't the dpf, it's elsewhere in the system. Something is allowing the fuel to burn in such a way that it's producing shedloads of soot? The filter is doing its job by catching the soot but there's too much being produced for the filter to clear it.

Just a thought but my mate's got an 06 plate volvo & I noticed a very sooty exhaust, loads of black soot coming out as he was driving along. He took it to an indie & they found one of the hoses was resting against the engine, so had melted a large hole in it. Replaced said hose & everything OK. There was a similar problem on 'the garage' (cable telly) & I said to the family, "that's what was wrong with mymate's car" (this was a range rover) and sure enough, there was a hole in one of the large breather pipes.
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Old 19-07-2009   #20
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Re: "engine failure" warning & lack of power

Alot of problems are caused by not resetting the oil degredation index, this happens when non-fiat garages are used, seen it many times. Not saying this is your problem kipper but there are very few taxi owners/companies that use dealer servicing.
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Old 19-07-2009   #21
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Re: "engine failure" warning & lack of power

Quote Originally Posted by T14086 View Post
Alot of problems are caused by not resetting the oil degredation index, this happens when non-fiat garages are used, seen it many times. Not saying this is your problem kipper but there are very few taxi owners/companies that use dealer servicing.

So are you saying the computer still believes it is running on black, old oil & runs the car accordingly?
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Old 19-07-2009   #22
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Re: "engine failure" warning & lack of power

Quote Originally Posted by kipper28 View Post
Hi have just joined site and glad to find i,m not the only one having probs with DPF, thought i was paranoid.

My 1.9 MJ started playing up March 09 should say it is a taxi 07 plate 108k miles now.

Sorry for the saga.
Thanks for the info kipper - keep us posted please - it seems we might all have some dpf issues at some stage
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Old 19-07-2009   #23
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Re: "engine failure" warning & lack of power

Quote Originally Posted by T14086 View Post
Alot of problems are caused by not resetting the oil degredation index, this happens when non-fiat garages are used, seen it many times. Not saying this is your problem kipper but there are very few taxi owners/companies that use dealer servicing.

Totally agree with you about taxi owners but my local garage is a fiat dealer who I have a good relationship with.

Only ever seen oil change light come on once and that was week after first service. Not convinced warning light has anything to do with oil degredation more like a mileage setting.

This is my second Doblo but will be my last, had a jtd and it was a far superior vehicle in every respect.
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Old 19-07-2009   #24
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Re: "engine failure" warning & lack of power

Quote Originally Posted by kipper28 View Post
Not convinced warning light has anything to do with oil degredation more like a mileage setting.
if you mean the flashing oil light I can assure you it does.
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Old 19-07-2009   #25
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Re: "engine failure" warning & lack of power

Quote Originally Posted by T14086 View Post
if you mean the flashing oil light I can assure you it does.
Can you explain to me please in plain english not very mech minded
why the change oil warning would come on 700 miles after service.
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Old 20-07-2009   #26
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Re: "engine failure" warning & lack of power

because the oil degredation (in the ECU) was not reset after oil change...NOT the service light this is different.

(take back to dealer where oil change was done so they can reset it)
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Old 20-07-2009   #27
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Re: "engine failure" warning & lack of power

Will say 1st service was done at Arnie's but did not use him again until engine failure light came on in March. They cited egr valve as faulty, they said it would be done under warranty, was a bit surprised as i was at 95k and was booked into my own dealer for service following week.

Decided to let them do work + service & mot.

Everything fine until few day's b4 next service and light came back on and only fault that shows on examiner is dpf clogged, the only thing that has not been changed is the cat.

Would appreciate any pointer's you can give.
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Old 20-07-2009   #28
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Re: "engine failure" warning & lack of power

Quote Originally Posted by kipper28 View Post

Explained the prob, put it on the examiner diagnosed DPF clogged 108%? did see this on the examiner screen. Did a forced regen cleaned the filter went on my way no charge.
Kipper, was your fault code "P1206" ?
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Old 20-07-2009   #29
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Re: "engine failure" warning & lack of power

Cant say I noticed the code Rich and never asked for a printout.
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Old 20-07-2009   #30
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Re: "engine failure" warning & lack of power

Quote Originally Posted by RichDoblo120 View Post
Kipper, was your fault code "P1206" ?
and can you tell us what that code relates to and whether we have access to the full list somewhere
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