disabling particulater filter

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citroenxm
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Post by citroenxm »

CitroJim wrote:
spider wrote:Random question: What language is the code written in ?
French..


<runs and hides>
I Nearly fell off my chair with that one Jim! Like it, my style! :D :D :lol: :lol: :lol: :lol:


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Post by dieselnutjob »

I disabled the DPF on my 607 HDI
You don't need Lexia and it won't help
as people say
read eprom with galetto or kwp2000
modify with ecusafe
write with galetto or kwp2000

you need to make sure that your laptop is 100% reliable, fully charged etc
not on the net so that antivirus or MS update doesn't suddenly kick in
make sure screen saver/power saving doesn't kick in either

also make sure that the car has a good solid supply voltage throughout the write
persoannly I put jump leads onto my other car with the engine running just to be 100% sure but the normal advice is to disconnect the coolant fan and make sure the battery is good
I thought jump leads was simpler

my car seems a little more responsive
a nasty engine shake has gone (probably due to not having 5kg of DPF hanging on the back of the engine)
My economy has gone up from about 29mpg to 35mpg and I suppose my CO2 emissions will now be lower as well
the is no visible smoke from the exhaust
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Post by Paul-R »

dieselnutjob wrote:I disabled the DPF on my 607 HDI. You don't need Lexia and it won't help
I'm sorry but I'm not convinced that a Lexia can't do the job. Unfortunately (or probably fortunately!) neither of my HDi engined cars have a DPF so I can't test the theory myself.

I'm not saying that the Galletto route isn't a simple, effective way (providing you have the correct file to write back in) but you stand just as much chance (probably more) of making your car brain dead this way compared to the Lexia.
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Post by dieselnutjob »

I suppose that if a main dealer wanted to apply a software update they would use Lexia so maybe you are right.
Whether Lexia can read out the eprom contents is another matter as I don't see why a main dealer would ever need to do that, and whether it produces a file that ecusafe can understand is also unlikely I would say.
Therefore I would say that Lexia is unlikey to be of use, rather than saying that it's definitely of no use.
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Post by picnmix »

I agree, if Citroen had a need for their technicians to disable the FAP I'm sure they would update the Lexia software with the facility to do this.

As I see it, its not something Citroen would want to do. FAP enabled cars have lower 'benefit in kind' taxation for company car drivers due to their lower particulate levels; for their dealers then to remove it could be questionable and they also generate good income for servicing FAPs.
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Post by Paul-R »

I think we're looking at the Citroen view the wrong way. It's not a case of why should they have the option to disable the FAP; it's a case of it being one of the many (many!) options that are available on C5s.

As I said, neither of my cars have a FAP but there certainly is a 2.0HDi 110 with FAP in some markets. As far as I can ascertain it loses 2bhp (107bhp rather than 109bhp) and has an engine type RHS (DW10ATED4) rather than RHZ (DW10ATED). I've also seen various options (including forcing a regeneration sequence) when poking around with the Lexia to do with the FAP - all fortunately set to disabled on my car.

Last thought. If a new ECU is fitted surely you have to go through just this process enabling and disabling options as required?
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Inside every old person is a young person wondering what the hell happened.

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Post by citroenxm »

You ask a dealer about remaps - I think they tell you ooooo you cant do that... it will invalidate your warrenty....or similar...

A customer got told by them locally, who wanted a Handbook for a Xsara for the fuse table, "..... oh, it wont be any good for you, it wont tell you that!"

Um, dont all hand books tell you how to change a fuse and give a fuse table..


Paul
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Post by chrischester »

wheeler wrote:
chrischester wrote:
DickieG wrote:I believe the code you are looking for is 01134.
Hi, tried this code and did not like it. Where did you get this from to try it?
cheers
Try 03114 instead & see how that works.
Hi
That code worked thanks.now I'll drive it and see if it stops the regens. Then if it does i'll drill the filter or just clean it out regularly.Just wondered where the code is from.

Many thanks
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Post by steelcityuk »

I stick with my method of disabling the the cooling fan(s) and using a 'stable' source, power pack, charged standalone battery, etc. If the cooling fan comes on on either car it could be cause a voltage dip/spike that could corrupt the ecu.

I'm not the luckiest person in the world with these things...

Steve.
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Post by dieselnutjob »

Paul-R wrote:If a new ECU is fitted surely you have to go through just this process enabling and disabling options as required?
I bet that the ones with FAP have an ECU with a different part number.
The 2.2 was never sold without a FAP so there probably isn't a nonFAP configuration for that ECU at all.
I suspect that ecusafe kills the FAP functionality in some way that isn't standard.
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Post by dnsey »

I stick with my method of disabling the the cooling fan(s)
And, I'd suggest the suspension pump, which can take a big gulp of current on start-up.

I'd agree that the ECU almost certainly uses machine code. Even if it's initially written in something else, it would surely be compiled once complete.
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Post by spider »

dieselnutjob wrote:
I bet that the ones with FAP have an ECU with a different part number.
The 2.2 was never sold without a FAP so there probably isn't a nonFAP configuration for that ECU at all.
I suspect that ecusafe kills the FAP functionality in some way that isn't standard.
Quite likely. It will probably just have a jump over that section of code or possibly write it over with a NOP instruction (do nothing) or suchlike so the 'regen' is never called.
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Post by DickieG »

dieselnutjob wrote:
Paul-R wrote:If a new ECU is fitted surely you have to go through just this process enabling and disabling options as required?
I bet that the ones with FAP have an ECU with a different part number.
The 2.2 was never sold without a FAP so there probably isn't a nonFAP configuration for that ECU at all.
Just a few days ago I fitted and configured a new ECU to my HDi Xantia and yes you do enable or disable various options and configurations (cruise control was one which AFAIK was never available on an HDi).

I'm pretty sure I saw the option to disable FAP when I had my Lexia plugged into a 2.2 C5, I've also spoken to a well known C5 specialist who states that its easily done using a Lexia.
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Post by corsehf »

There are several members of this forum with 2.2 HDi's that have had their DPF filter, eolys fluid and pressure sensors removed and disabled (myself included), and all completed within 30 minutes using a laptop with a Galletto cable.
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Post by Paul-R »

corsehf wrote:There are several members of this forum with 2.2 HDi's that have had their DPF filter, eolys fluid and pressure sensors removed and disabled (myself included), and all completed within 30 minutes using a laptop with a Galletto cable.
That's not in dispute.

What I said was that I was not convinced that a Lexia couldn't do the same job by altering options in the installation menus.
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.

Inside every old person is a young person wondering what the hell happened.

"Trying is the first step towards failure" ~ Homer J Simpson​
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