C4 gp 1.6hdi wiring diagrams

This is the Forum for all your Citroen Technical Questions, Problems or Advice.
User avatar
GiveMeABreak
(Donor 2016)
Posts: 41989
Joined: 15 Sep 2015, 19:38
x 6956

Re: C4 gp 1.6hdi wiring diagrams

Unread post by GiveMeABreak »

Ok, so you keep changing engines! - this is a completely different engine above and this one does have an emission control oxygen sensor at the arrow. As emissions standards and controls become more strict, later diesels have many more emissions equipment fitted to comply, so that's why some do and some don't.

The 207 (DV6TED4) in your previous post does not have one, nor does the C3 Picasso (also a DV6TED4 engine). Both these engines are Euro 4.

The last engine in the picture in your your post above is likely from a DV6C engine which is a later engine with tighter emission controls. The 207 and C3 Picasso models are Euro 4 engines, the DV6C is a Euro 5. The newer the engine the higher the Euro standard and so have stricter emission controls and therefore more emissions equipment.
Please note, I'm no longer active on the Forum, so won't respond to messages.

Marc
Sponk
(Donor 2026)
Posts: 51
Joined: 04 Oct 2023, 19:33

Re: C4 gp 1.6hdi wiring diagrams

Unread post by Sponk »

It makes so much sense ๐Ÿ˜Š I'm retrofitting the particle filter.

It must be said that my experience in diesel is new. It was therefore also only when I acquired the particle filter that I found out that the catalyst is not only on petrol, but also on diesel (I didn't know either). I bought this complete from the 308 with same engine size, which should therefore fit the 207 without filter, but gradually found out more and more, finally the lambda that I put in (didn't have a dummy screw that fit) And struggled quite a bit to find out if it was for the lambda or maybe an high temperature sensor, could find that it must be the lambda. But now I know that I don't have to think anymore about connecting the lambda to the 207, but only the temperature and pressure sensor, and here I now know for sure which ECU it should be connected to ๐Ÿ‘๐Ÿ’ช๐Ÿฅต

My "jumping around" is because I have searched for information from cars that would be controlled by ECU16C34

(The 207 without filter VF3**************[VIN obfuscated, can be read by forum staff])
Sponk
(Donor 2026)
Posts: 51
Joined: 04 Oct 2023, 19:33

Re: C4 gp 1.6hdi wiring diagrams

Unread post by Sponk »

GiveMeABreak wrote: 18 Oct 2023, 10:24 The last engine in the picture in your your post above is likely from a DV6C engine which is a later engine with tighter emission controls. The 207 and C3 Picasso models are Euro 4 engines, the DV6C is a Euro 5. The newer the engine the higher the Euro standard and so have stricter emission controls and therefore more emissions equipment.
Marc, can you find diagrams based on this information only - 207 1.6D 9HR SID807 - oldest possible with Euro5
User avatar
GiveMeABreak
(Donor 2016)
Posts: 41989
Joined: 15 Sep 2015, 19:38
x 6956

Re: C4 gp 1.6hdi wiring diagrams

Unread post by GiveMeABreak »

No, I require the VIN as diagrams are vehicle engine and option specific.

Engine ECU hardware is for specific vehicles with specific equipment and have specific software to work with those engines, so I can't advise you on whether this will even work, because you have to factor in the additive system that is engine ECU controlled (but older vehicles could of been fitted with a separate additive ECU linked to the engine ECU), so it gets complicated. Some are multiplexed additive pumps some are not. The engine ECU has to support all the required sensors for a specific system that was fitted and have the software to operate the system and make the calculations for correct operation. Switching on glow plugs and consumer power devices like heated mirrors and rear screen and increasing engine load are other things to be considered that are required for regeneration under certain circumstances, along with upstream and downstream differential pressure sensors......
Please note, I'm no longer active on the Forum, so won't respond to messages.

Marc
Sponk
(Donor 2026)
Posts: 51
Joined: 04 Oct 2023, 19:33

Re: C4 gp 1.6hdi wiring diagrams

Unread post by Sponk »

GiveMeABreak wrote: 20 Oct 2023, 08:33 No, I require the VIN as diagrams are vehicle engine and option specific.

Engine ECU hardware is for specific vehicles with specific equipment and have specific software to work with those engines, so I can't advise you on whether this will even work, because you have to factor in the additive system that is engine ECU controlled (but older vehicles could of been fitted with a separate additive ECU linked to the engine ECU), so it gets complicated. Some are multiplexed additive pumps some are not. The engine ECU has to support all the required sensors for a specific system that was fitted and have the software to operate the system and make the calculations for correct operation. Switching on glow plugs and consumer power devices like heated mirrors and rear screen and increasing engine load are other things to be considered that are required for regeneration under certain circumstances, along with upstream and downstream differential pressure sensors......
๐Ÿ‘

Yes, why I thought I would see what else, if any, was the difference between the two ECU types. Difficult, but will have to search some more and see which model might seem like an option.

Unfortunately, I am the type of person that if there is a empty plug, it must also be connected ๐Ÿ˜” as with lambda, I know I can just put a blind bolt in, but since there are options, I might as well investigate whether it can be made fully supported. For now, many thanks for your input๐Ÿ’ช
User avatar
GiveMeABreak
(Donor 2016)
Posts: 41989
Joined: 15 Sep 2015, 19:38
x 6956

Re: C4 gp 1.6hdi wiring diagrams

Unread post by GiveMeABreak »

You should also be aware that some 'plugs' are intentionally left blank where the harness may have been standard but where the equipment is not fitted.

I really wouldn't want you to waste time in fitting bits that won't work.
Please note, I'm no longer active on the Forum, so won't respond to messages.

Marc
Sponk
(Donor 2026)
Posts: 51
Joined: 04 Oct 2023, 19:33

Re: C4 gp 1.6hdi wiring diagrams

Unread post by Sponk »

GiveMeABreak wrote: 20 Oct 2023, 13:55 You should also be aware that some 'plugs' are intentionally left blank where the harness may have been standard but where the equipment is not fitted.

I really wouldn't want you to waste time in fitting bits that won't work.
I know ๐Ÿ˜Š The empty plugs I'm thinking of, the ones you find in "lower/cheaper models". Neither I nor my loved ones are people who just go down and buy a new car, so we have to make do with what we have. In its day, it was cars with manual windows that I "upgraded" to electric ones and so on ๐Ÿ˜Š

Do not abuse my time but do understand you, and definitely don't want to abuse your time. I cam only become wiser by investigating the possibility and know better moving forward ๐Ÿ‘

Ok this is the oldest I could find with Euro V VF3**************[VIN obfuscated, can be read by forum staff] and can see it is not a SID but a 17C10
Sponk
(Donor 2026)
Posts: 51
Joined: 04 Oct 2023, 19:33

Re: C4 gp 1.6hdi wiring diagrams

Unread post by Sponk »

Sponk wrote: 20 Oct 2023, 14:34
GiveMeABreak wrote: 20 Oct 2023, 13:55 Ok this is the oldest I could find with Euro V VF3**************[VIN obfuscated, can be read by forum staff]**************[VIN obfuscated, can be read by forum staff] and can see it is not a SID but a 17C10
Still haven't made the connection, but without information it wasn't going to be Euro 5 ๐Ÿ˜”
IMG_2633.jpeg
Thanks for the info ๐Ÿ’ช??
Sponk
(Donor 2026)
Posts: 51
Joined: 04 Oct 2023, 19:33

Re: C4 gp 1.6hdi wiring diagrams

Unread post by Sponk »

Hi again Marc. Can you help me with the connection from additive pump for the same model as below diagram?
GiveMeABreak wrote: 05 Oct 2023, 12:55 Ok, so here are 2 diagrams. One for the particle filter system and one for the main injection:

Image

Can you help me with the connection from additive pump for the same model as above diagram?
GiveMeABreak wrote: 17 Oct 2023, 19:15 For a list of codes look here on the wiki - most are here and in sections of numerical hierarchy:

https://frenchcarforum.co.uk/wiki/Elect ... ring_Codes
And do you have a new link to the list?
User avatar
GiveMeABreak
(Donor 2016)
Posts: 41989
Joined: 15 Sep 2015, 19:38
x 6956

Re: C4 gp 1.6hdi wiring diagrams

Unread post by GiveMeABreak »

We're moving the old Wiki content. The Wiring Diagram Index is now a Global Sticky accessed from the top of most of the Sub-forums:

viewtopic.php?t=80489
Please note, I'm no longer active on the Forum, so won't respond to messages.

Marc
Sponk
(Donor 2026)
Posts: 51
Joined: 04 Oct 2023, 19:33

Re: C4 gp 1.6hdi wiring diagrams

Unread post by Sponk »

Found it, also the connection to the tank-cover??
hatiboglufatih
Posts: 3
Joined: 04 Sep 2023, 18:45

Re: C4 gp 1.6hdi wiring diagrams

Unread post by hatiboglufatih »

GiveMeABreak wrote: 23 Sep 2021, 18:48 I'll sort it - I've deleted the previous diagrams in lieu of these:

Injection
Image


ESP

Image
Could you also give the meanings of the numbers on the diagram, such as BSI, ECU, etc. Which number represents what?thenks :wink:
User avatar
GiveMeABreak
(Donor 2016)
Posts: 41989
Joined: 15 Sep 2015, 19:38
x 6956

Re: C4 gp 1.6hdi wiring diagrams

Unread post by GiveMeABreak »

With the exception of the wiring codes, most of the component codes are indexed here:

PSA Electrical Diagrams - Wiring & Symbols Codes Index
Please note, I'm no longer active on the Forum, so won't respond to messages.

Marc