Changing DS3 fuel injector

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Paul-R
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Re: Changing DS3 fuel injector

Unread post by Paul-R »

Do the injectors need coding in? I can't see anything obvious on the top of the injector (presumably hexadecimal) that would be a code.

tomjyoutwit
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Re: Changing DS3 fuel injector

Unread post by tomjyoutwit »

I've seen things written about it Paul but not too sure. I can't see it being too much of a problem - especially seeing as I currently have no use of the vehicle!

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GiveMeABreak
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Re: Changing DS3 fuel injector

Unread post by GiveMeABreak »

Yes, they do and the code on your original picture for this specific injector is arrowed in green (B4FJKJ) in this example.
Tom Injector Code.PNG
I'll be putting something up shortly as promised, it takes me a while to do...

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Re: Changing DS3 fuel injector

Unread post by tomjyoutwit »

Thank you Marc appreciate it.

Should I be in a rush to programme them?

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GiveMeABreak
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Re: Changing DS3 fuel injector

Unread post by GiveMeABreak »

Yes, because a unique code is generated for each injector during the stages of manufacturing that specifically relate to the exact tolerance range of the needle and assembly. This info is needed by the engine ECU to provide the correct fuelling. Considering that the fuel is injected through a nozzle that it a thirtieth of the width of a human hair, it is important to code them.

Possible issues if they are not coded / coded correctly can lead to refusal to start, poor running, smoking, increase in fuel consumption, increased emissions etc., so not a good idea to leave this.

Anyway, I have completed the illustrated guide for you and it can now be found in the Resources Section of the Member's Area:

DS3 1.6 HDi (DV6C) Siemens Injector Removal / Replacement

tomjyoutwit
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Re: Changing DS3 fuel injector

Unread post by tomjyoutwit »

Thanks Marc- is that only through Lexia? Is this what every marque does?

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GiveMeABreak
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Re: Changing DS3 fuel injector

Unread post by GiveMeABreak »

If you are referring to injector coding, this will be required for every modern car that uses a common rail high pressure direct injection and later petrol models too.

The Diagnostic tool used by PSA for their vehicles is a hardware Vehicle Communications Interface (VCI - the hardware) and the software - Lexia for older cars and Diagbox for later models circa 2007 /8 on.

The coding operation is handled by the diagnostic equipment and is a guided procedure. Other Marques will have their own diagnostic kits to do a similar operation.

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Paul-R
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Re: Changing DS3 fuel injector

Unread post by Paul-R »

Interesting that the code is not hexadecimal and is only 6 characters long.

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GiveMeABreak
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Re: Changing DS3 fuel injector

Unread post by GiveMeABreak »

Just a Hex code on this one.

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Re: Changing DS3 fuel injector

Unread post by Hell Razor5543 »

GiveMeABreak wrote:
30 Jun 2020, 20:32
Just a Hex code on this one.
So long as it works properly, and has not been 'hexed'! :D

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Paul-R
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Re: Changing DS3 fuel injector

Unread post by Paul-R »

It can't be hex if it has 'J' or 'K' in it. It must be some other system.

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GiveMeABreak
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Re: Changing DS3 fuel injector

Unread post by GiveMeABreak »

I meant as of 6, not the abbreviated Hex. from Hexadecimal.

tomjyoutwit
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Re: Changing DS3 fuel injector

Unread post by tomjyoutwit »

Ta dah!

Waiting for the replacement to arrive. Can anyone provide the size I need for a replacement copper washer for the bottom?
DA7E0101-92CE-47AC-8485-0721147094CE.jpeg

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GiveMeABreak
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Re: Changing DS3 fuel injector

Unread post by GiveMeABreak »

Tom Injector Washer.PNG
Item (8) is Part: 1982G6 (Engine Injector Protection)
Item (9) is Part: 198194 (Injector Seal) 7.07/14.9 EP2.1-CN

If that helps

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Re: Changing DS3 fuel injector

Unread post by tomjyoutwit »

Thanks Marc, not sure if possible but can I find a list of cars and years that use the same injector?