Technical DPF clogged, regen failed maybe?

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Technical DPF clogged, regen failed maybe?

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when i picked my car up from the body shop last week after they had has it a month, there was a bit of paper in it with code wrote on.

p2009 flow shutter valve ( i dont know what that is? )

p1206 particulate filter ( i know what one of them is)

Any way i asked the guy at body shop what it was and he said he had no idea :bang:

whilst car has been in body shop its been taken to fiat dealer to have a pas loom upgrade @ cost to me

and an oxygen sensor @ cost to body shop.

car had to go back to body shop monday as the repair it actually went in for hadn't been done right. today i collected it again, on way home engine light comes on.

code now is P1206 clean or replace dpf!
same code as 1 what was on the bit of paper found in my car :chin:

when i still had the car on sunday i drove 260 miles of motorway and dual carriageways.

i tried a regen with multiecuscan, looks like it wont do it because dpf is too clogged?

this is screen when i started it.. (click picture to see bigger)

first.JPG
this is screen after, says complete but still clogged.

second.JPG
How do i clean it, take it off and pour petrol through it?
 
Fully clogged is 250 % strangely enough and the temperature required for regen is in excess of 600 degreees! I think forced regen should be done whilst stationary, otherwise you risk damaging the engine.
The problem is that the ecu basically takes an educated guess at what it thinks the state of the DPF is, based on readings from several sensors. For example, when I gutted mine the ECU said it was 110% clogged and carried on increasing, despite the fact that it was an empty shell! 79% isn't particularly high so the problem may lie elsewhere.
 
Fully clogged is 250 % strangely enough

New one on me. As far as I was aware 100% is just that - i.e. USed.

Normal regen happens at 35-40% to enable for a few failed regens before it reaches about 65-70% when forced needs to be done to prevent the filter from becoming completely broke.

600C sounds right, I did think that earlier, but didn't it seemed right :eek:
 
When you do a forced regen, then the ECU will automatically bring the temperature up by forcing extra fuel into the engine. It does sound like something else is amiss. What is the oil degradation reading? The oil may need changing and the counter resetting.
 
Dave, Oil degradation could be your problem, see if you can zero it. You will not get a regen with that amount of oil degradation, which is a counter that most garages can't reset. The ECU assumes that the oil will not stand the extra temperature. After the 18000 mile oil change it allows another 2000, then refuses to regen.
Diesels don't warm up on tick over, you need to get it out on the road and try to keep it above 3000 rpm after warm up.
I see it has apparently been getting very frequent regens. My 2.4 regens about 400 miles, but I do very little traffic or motorway.
Keith
 
Also I usually have the instant mpg readout switched on, so that I know it is doing a regen when the expected mpg is suddenly half, and it has finished when it goes back up.
 
I agree with Keith - reset the oil change counter.

If you can't do it with the current free version of FiatEcuScan (or whatever it's called these days) then there's an older free version that can do it.

Also agree about the interval between regens. Perhaps if it decides to regen then doesn't bother because of the old oil then it still counts it as a regen. So yours keeps trying but fails to properly start (just a theory).

Did you not get any dashboard warning with the oil showing as that far degraded? Or perhaps it told the previous owner for a while then gave up.

What I don't understand is why it says 48500km (I think) to the next oil change. It should be lower if the oil's that far gone. What does your mileage read in the car if you change the scale to km using the buttons next to the steering wheel? I'm wondering what distance it has done since it last had an oil change it knew about.

I'm wondering whether the degredation is one of those that's negative even though they don't tell you - does 100% actually mean freshly changed? I've got a vague memory of something like this when I last played with mine.
 
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So it sounds like the car doesn't bother telling you if the oil has degraded. Is this right?
 
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