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DPF removal/remapping (Depollution fault/EGR valve cleaning/change)

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bigstan   
Tue Nov 29 2011, 01:48pm
Member No: #18724
Joined: Mar 13 2011
Location: Runcorn
Embarrassingly enough it's not a DFPS , so before I say anything else, please finish laughing at me.

Finished?

So, my first question then, why would it give a ' DEPOLLUTION' fault message then?

@gmerry

I have thought it about as an economic write off, but it's a hard thing to do, especially as Im a student (albeit a mature one at 31).
gmerry   
Tue Nov 29 2011, 03:16pm
Member No: #11625
Joined: Nov 30 2009
Location: aberdeen
Bigstan, I told my wife for years not to brim the tank in order to conserve the Eolys: I too thought it had a DPF (2005 HDi 110 without FAP)

Re your car, if you don't want to write it off, try and separate the faults into those you can live with (and those you cant). When is the MOT due? Are you in a position to fix stuff yourself? Would you rather pay someone else to fix and get a student loan. Give us a clue and we might be able to give you some tips.

If your car has no FAP, the front intercooler pipe bracket may be a culprit for the depollution faults. Its a matter of eliminating the problems which are cheap to fix.

Regards
G
bigstan   
Wed Nov 30 2011, 05:09am
Member No: #18724
Joined: Mar 13 2011
Location: Runcorn
Cheers gmerry.

I am quite lucky regards the MOT, as I got it done last month, but the mechanic did say I would fail after April 2012 if I still have the ABS fault appearing due to the changes in rules.

I'm also trying my luck with Citroen, as I have taken it in today and got them to have a look at it with respect to the previous electrical fault, as I was already getting these errors messages, so I want to confirm it's related to the old fault or something new. I wont be paying for it either way so I should hopefully find out later.

You mentioned the front intercooler pipe bracket, do you have any more info on that?

I have considered changing the brake light switch, as mentioned in many threads regards the ESP/ABS fault, but I will leave paying for parts as a last resort or until I can as you say eliminate what its not.
Dave_Retired.   
Wed Nov 30 2011, 07:36am

Member No: #1
Joined: Aug 07 2006
Location: Northumberland
bigstan wrote ...


You mentioned the front intercooler pipe bracket, do you have any more info on that?



Read this 'Sticky' thread: - Click Here -
gmerry   
Wed Nov 30 2011, 09:02am
Member No: #11625
Joined: Nov 30 2009
Location: aberdeen
My advice on the ABS and ESP faults, given that you have long time to run on the MOT, is to just forget about them and spending money to fix them for the time being. Maybe next April if you have funds and/or money then you might want to do something (assuming you still have car and have fixed the other problems).

Re the non-starting problem, has this now been cured/gone away?

Regards
G
1 User said Thank You to gmerry for this Post :
 bigstan (30 Nov 2011 : 10:50)
bigstan   
Wed Nov 30 2011, 10:16am
Member No: #18724
Joined: Mar 13 2011
Location: Runcorn
Just got it back from Citroen and the mechanic said it is the EGR valve that needs replacing. The other faults will probably relate to that he said.

I was quoted a lovely £512+ for parts and labour.

However, I think the VIN numbers you have are wrong, as according to the the sheet from Citroen, it has DPFS??!

(Should hopefully be a picture attached)



Dave_Retired.   
Wed Nov 30 2011, 10:32am

Member No: #1
Joined: Aug 07 2006
Location: Northumberland
PM me the Vin from your car and I'll check for you.

You could try removing and cleaning the EGR valve. There is a tutorial in downloads.

EGR Valve Removal: - Click Here -

EGR Valve Cleaning: - Click Here -

You have nothing to loose and £500+ to gain
1 User said Thank You to Dave_Retired. for this Post :
 bigstan (30 Nov 2011 : 10:49)
Dave_Retired.   
Wed Nov 30 2011, 10:44am

Member No: #1
Joined: Aug 07 2006
Location: Northumberland
OK Vin check done and the car is NON FAP. I have e mailed the build spec to you
1 User said Thank You to Dave_Retired. for this Post :
 bigstan (30 Nov 2011 : 11:02)
bigstan   
Wed Nov 30 2011, 11:01am
Member No: #18724
Joined: Mar 13 2011
Location: Runcorn
@ C6 Dave, thanks, puts my mind at rest as I have one less thing to worry about! Strange that Citroen didnt recognise it though.

I will definately have a go at the EGR cleaning, so cheers for the links

@ gmerry

So far I haven't had a non start issue since, and as its been over 2 months now when it was happening every 3-4weeks, seems likely it was the ABS control module causing the problems. I was quite fortunate as the Chief Mech who was dealing with it, said originally the part could only be bought as a whole unit which cost over £1000! But now they sell them separate and costs £160. But is was the fault finding and wire testing that bumped it to £450.

With regards the EGR valve, how urgent is it that I get it cleaned or changed? If it needs changing, am I best buying from Citroen?

BigJohnD   
Wed Nov 30 2011, 12:08pm

Member No: #82
Joined: Jan 22 2007
Location: Hoylake
From the info on your quote, you have an early C4 with the 9HY engine, which is the 110hp diesel without the particle filter. You'll have a manual gearbox.

Details here: - Click Here -
sijones   
Wed Nov 30 2011, 03:40pm
Member No: #23077
Joined: Nov 26 2011
Location: Wirral
bigstan wrote ...

I will definately have a go at the EGR cleaning, so cheers for the links


If it's anything like what happens to the Audi EGR's, it gets coaked in [%*^#@!] and performance and MPG drop, once you clean it the car will feel much better, and worst case is you replace it yourself and save some money as well, usually not a hard job to do, but i've not seen where it is on Citroen's before...
Biohead   
Wed Nov 30 2011, 03:50pm

Member No: #6049
Joined: Nov 05 2008
Location: Bracknell
1.6HDi's are fairly easy to replace.
2.0HDi's are an absolutely nightmare to replace.
bigstan   
Wed Nov 30 2011, 05:00pm
Member No: #18724
Joined: Mar 13 2011
Location: Runcorn
Well, I've seen new ones listed on ebay for £90 and after reading C6 Daves info - Click Here - saying that it's false ecomony to clean, I'm in two minds what to do now.
Dave_Retired.   
Thu Dec 01 2011, 01:29am

Member No: #1
Joined: Aug 07 2006
Location: Northumberland
If you can get one for £90 and change it yourself then go for it as long as you intend keeping the car.

If you might be trading the car in the foreseeable future, then cleaning the EGR may be the lower cost option you need as a hard up mature student .
gmerry   
Thu Dec 01 2011, 06:57am
Member No: #11625
Joined: Nov 30 2009
Location: aberdeen
Hi again.

I had the EGR valve off when the clutch was being replaced with a view to cleaning it off the engine. I ended up putting it back in place without any cleaning. On the 1.6HDi 110 without FAP (ie should be same as the engine in BigStan's car) I could not see any possible way to clean the valve without knowing what the pin lineup is (4 pins in the EGR valve connector) and having a spare connector/loom and then forcing the valve open with the correct electrical signal. Dave, any chance of getting a wiring diagram for the valve showing the pin numbering and the actuator operating principle (pulsed signal or variable voltage plus position feedback ???). Here's a link to information on a similar EGR valve with the pin out information - Click Here -
Just to be clear, this EGR valve is not a vacuum operated valve, its also not the same as the one one fitted to the 2.0 HDi engine.

Personally I think the valve has to be replaced or at least cleaned by someone with some specialist knowledge/kit.

On the subject of replacement, if doing this yourself please be aware that the crimped connection on the gas outlet of the valve, has to be replaced with a clamp type. I think Citroen sell this as a service part but I don't know the part number. You will also need the thin aluminium gasket that goes on the inlet side.
You will also need to configure the new EGR valve using Lexia. Look at the grief this can cause - Click Here -


Regards
G
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