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That damned DPF...

dpf

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16 replies to this topic

#1 Paxmanmerv

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Posted 21 March 2020 - 02:21 PM

Afternoon all!

No doubt this has been done to death but so much conflicting info..

2.2 TDCI stgV with DPF issues.

UK car that i have had for a couple of months with under 100,k on the clock & all was good. EML pops on & drops into LHM so plug in Launch scantool & get these in this order :-

P246B

P2463

P246C

No worries, try a static regen. No good. Dig a bit & find the vapouriser blocked. New one in, sorted....no. Same codes. Look at DPF differential pressures & reading 0.49kpa with engine not running. New DPF pressure sensor supplied & fitted, you guessed, no good. Pipes off pressure sensor & blown through  & all clear, no good..

Starting to get a bit tedious now! Even tried regen via Snapon scantool incase the car doesnt speak Chinnese but same results.

Is there a different route to do a static regen & clear the DPF or is a new one the only way forwards?.

Had a word with the previous owner, said he had some problems for the previous 12 months or so but his garage kept resetting the light as he was selling it anyway :eek13:.

Many thanks in advance guys `n gals!

 



#2 PURPLE_2L_LX

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Posted 21 March 2020 - 02:45 PM

Did you reset the values using Forscan or similar?

 

Once it reads 300%  (odd figure but thats what it says)  it wont do a regen until you clear

the figures.

 

What i did was get the car upto temperature and then find a clear dual carriageway, find a safe

place to park and then reset all the figures to zero. Then only start the car when its clear to pull

out. As you start to drive the figures increase, as it gets to 80% it should start a regen and

fingers crossed it actually works.

 

The software warns of doing a static regen once its reached its limits. The DPF can overheat

and cause damage to it.


MK4.5 TDCI 140 Business Estate.

 

MK3 FUSE INFO CLICK HERE ... FORD WIKI CLICK HERE .... FORD ETIS CLICK HERE

Adding your location may find someone local who could offer assistance.

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#3 riikomi

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Posted 21 March 2020 - 02:46 PM

If not already done, I'd start with resetting DPF learned values.



#4 Glenn_

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Posted 24 March 2020 - 08:50 PM

These 2.2 are a fookin nuisance. I've had a few problems with my dpf.

Mine still smokes when the car is doing a regen when I'm driving the car.

#5 riikomi

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Posted 25 March 2020 - 06:23 AM

*
POPULAR


Mine still smokes when the car is doing a regen when I'm driving the car.

 

My 2.2 started smoking at around 125,000 km (80,000 mls). No more smoking after I reset the DPF learned values. I guess that the ECU has various regen modes for 'new' vehicles and cars which have higher value on the clock.


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#6 frembrit

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Posted 25 March 2020 - 08:48 AM

Is it smoke or just a cloud of burnt soot? Mine chucks out a good cloud of soot especially when driving slow (in traffic) during a regen


Mondeo 2.2 TDCI Titanium X Sport (MK4.5), Panther Black | S-Max 2.5T front brake calipers and 316mm discs |  Fuel Log

 

Now Dead - Mondeo ST24, 2000 W reg, Amparo Blue | ST170 Calipers and Discs | Goodridge Hoses | GW Decat | K&N Panel Filter | Black eyes | LPG

 

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#7 riikomi

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Posted 25 March 2020 - 09:01 AM

^Burnt soot is actually invisible CO2. I believe that the 'smoke' is unburnt fuel, caused by excess feed by ECU.



#8 SteveyG

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Posted 25 March 2020 - 09:17 AM

Did you use a genuine fuel vaporiser from Ford? The ones are ebay appear to be junk and never work.

 

What does the DPF temperature get up to? It needs to be above 600C, normally 620C



#9 Paxmanmerv

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Posted 25 March 2020 - 07:25 PM

Evenin all!

Soooo.. all the learned values of dpf & differential pressure sensor & still no static regen. So out we go & give it some beans.. Successful regen!

Many thanks all for the advice & suggestions, expect more to follow. :banana:



#10 Glenn_

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Posted 28 March 2020 - 09:38 PM


Mine still smokes when the car is doing a regen when I'm driving the car.


My 2.2 started smoking at around 125,000 km (80,000 mls). No more smoking after I reset the DPF learned values. I guess that the ECU has various regen modes for 'new' vehicles and cars which have higher value on the clock.

My car has about 108k miles on it now. The smoke is like a grey colour. The strange thing with mine is when I fitted the genuine dpf and the car did its first regen. It never smoked.





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