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Old 20-12-2019   #91
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Re: Sedici random blue smoke

I didn't notice it first kick in, was on motorway, but no smoke at all when I noticed that the live mpg had dropped from 48ish to 24ish, no smell of post burnt fuel. I'll do a forced regen when the elm and adaptors arrive.
Merry Christmas to you too!
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Old 01-01-2020   #92
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Re: Sedici random blue smoke

Hi, remember to initialise data on the precat once you get your ELM, this from the manual.
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Old 01-01-2020   #93
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Hi, yes I did that soon as I got elm, that was 2 days after fitting pre cat. At that point it had just done the first regen and was showing Dpf 32% clogged.
I plugged elm in yesterday, Dpf showing 78% clogged. I was on motorway today and noticed another regen by mpg drop, no smoke. That's the first one since resetting the precat, just over 200 miles since last regen.
I've attached a couple of pics that I took on my phone of these readings, a bit blurry I'm afraid.
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Old 02-01-2020   #94
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Re: Sedici random blue smoke

Looks like your problem is solved, I have received my precat, so waiting for a nice day to fit it, did it come out through the bottom of the engine or lift through the top? Where does the precat sensor plug into the wiring harness?
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Old 02-01-2020   #95
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Re: Sedici random blue smoke

Precat is removed from underneath and the sensor plug is just by the side of it.
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Old 09-01-2020   #96
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Re: Sedici random blue smoke

had a short regen tonight @ 134miles, smoke and strong fuel smell (not yet fitted precat) but as soon as it completed the oil warning light started flashing., stopped enging and let it sit, restarted light was off, i drove 5 miles to garage and topped up with 1 ltr oil, drove round a roundabout light started flashing, oil level high (probably fuel in oil), light was off as i drove home.

Anyone got an opinion, its about 2000 miles since oil n filter change.
I am thinking contaminated oil and thinned out with diesel (so low oil pressure), so I will change it tommorrow and see.(or prhaps bad contact on oil sensor??)
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Old 10-01-2020   #97
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Re: Sedici random blue smoke

Oil was like water, thin, full of diesel, fitted precat but bother getting the turbo side brass clamp in place, i will have to stip front of turbo to gain access.
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Old 10-01-2020   #98
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Re: Sedici random blue smoke

Yes I had difficulty getting that in place, in fact it's developed a slight leak from there and I'm going to redo it when I have a chance
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Old 10-01-2020   #99
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I purchased a new clamp and gasket but it is narrower than the original which makes it more difficult.
Did you reuse the original?
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Old 11-01-2020   #100
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Re: Sedici random blue smoke

Reusing original clamp with new metal gasket, but no access withour removing the heat shield (which I will do tommorrow) and get it in place and tightened then see how it runs.
My old precat looks in good condition sooty on inlet side (from engine) but filter clean on outlet, filter looks unmarked,. So I will see how it goes.
Oil was very thin and contaminated with diesel.
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Old 11-01-2020   #101
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Re: Sedici random blue smoke

The main difference between my old precat and the new one is the temp, the old one was reaching around 80°whereas the new one reaches 127°. Hopefully you will get it sorted tomorrow.
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Old 12-01-2020   #102
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Re: Sedici random blue smoke

Thats it in place, absolute nightmare, no access, no room for spanners , started sleeting halfway through job, My missus (spanner assist) was soaked through but we got it done as darkness fell.
fiat software identifies precat as unknown?? but said completed, so see how it runs tommorrow.
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Old 12-01-2020   #103
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Re: Sedici random blue smoke

That sounds horrendous! It was pretty tight on the Doblo, about 2 clicks on the ratchet space back and forth.
Did software say precat unknown after you reset it? That's weird. I didn't get a completed notification but reset to zero.
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Old 13-01-2020   #104
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Re: Sedici random blue smoke

OK, started school run and sedici decided on immediate regen, fuel dropped , no smell, and no noticable smoke, it was dark so not easy to see, but it gave a puff of blue followed by a puff of black soot on accelerating away from a roundabout, but this seems a one off in a virtually smoke free regen.
I will try a forced regen when i get a chance. I took a pic not long after of the readings





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Old 13-01-2020   #105
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Re: Sedici random blue smoke

Brilliant, I have found that you get the odd puff of exhaust smoke on hard accelerations in regen. All looking good, let us know how the force regen goes I've not tried one yet.
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