Heya all, am looking to improve my V6 fuel pressure. Having changed the Xantia V6 to the bosch 3.5 bar one , its really is quite nippy now , i would like to do the same with the C5 V6
Citroen part number for the C5 V6 petrol is 1563G4 and Bosch number on mine ( as fitted) is 0280161511
so, which one would i be looking for as an upgrade?
C5 V6 petrol fuel pressure regulator upgrade
Moderator: RichardW
-
- Donor 2023
- Posts: 913
- Joined: 11 Jan 2006, 21:11
- x 24
-
- Forum Admin Team
- Posts: 9097
- Joined: 09 Nov 2005, 22:03
- x 836
Re: C5 V6 petrol fuel pressure regulator upgrade
The C5 may still use the same regulator as the Xantia (I have not looked it up).
Be aware that if your C5 has a trip computer, it will under-read the fuel consumption and overestimate the range with the higher pressure regulator.
Be aware that if your C5 has a trip computer, it will under-read the fuel consumption and overestimate the range with the higher pressure regulator.
-
- Donor 2023
- Posts: 913
- Joined: 11 Jan 2006, 21:11
- x 24
Re: C5 V6 petrol fuel pressure regulator upgrade
Thank you - sadly they are different. On teh xantia its mounted under the forward fuel rail , whereas on my C5 its mounted off to the side . On the C5 it also doesnt have the vaccuum control pipe as well
Simon
-
- Forum Admin Team
- Posts: 9097
- Joined: 09 Nov 2005, 22:03
- x 836
Re: C5 V6 petrol fuel pressure regulator upgrade
On the Xantia and probably the C5, there are 2 pressure regulators, one with the vacuum connection and one without. The one with the vacuum connection sets the rail pressure, the other is a pulse damper.
-
- Donor 2023
- Posts: 913
- Joined: 11 Jan 2006, 21:11
- x 24
Re: C5 V6 petrol fuel pressure regulator upgrade
Am looking on service citroen ; the xantia ones are on both fuel rails - fuel pressure on the front one and pulse dampener on the rear. The C5 is very different - the pulse dampener is on the fuel pipes before the fuel rail and i cant find the regulator on the diagrams at all!
Simon
-
- Donor 2023
- Posts: 913
- Joined: 11 Jan 2006, 21:11
- x 24
Re: C5 V6 petrol fuel pressure regulator upgrade
Ok so having pulled the inlet manifold to repalce a duff coil these are both ends of the fuel rail:
https://ibb.co/hmY5hvp and
https://ibb.co/xzMq2HK
https://ibb.co/hmY5hvp and
https://ibb.co/xzMq2HK
Last edited by myglaren on 06 Aug 2019, 16:18, edited 1 time in total.
Reason: Images added.
Reason: Images added.
Simon
-
- Donor 2023
- Posts: 6950
- Joined: 07 May 2009, 16:24
- x 1383
Re: C5 V6 petrol fuel pressure regulator upgrade
Image not showing for me. Instead of using a hosting service why not upload the image directly here?
Instructions how: viewtopic.php?f=13&t=56796
EDIT you've changed the post to give links. It would still be better to upload them here.
Instructions how: viewtopic.php?f=13&t=56796
EDIT you've changed the post to give links. It would still be better to upload them here.
Last edited by Paul-R on 06 Aug 2019, 15:59, edited 2 times in total.
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
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
-
- Donor 2023
- Posts: 913
- Joined: 11 Jan 2006, 21:11
- x 24
Re: C5 V6 petrol fuel pressure regulator upgrade
Photobucket are paid accounts now - i changed the links, so maybe they are clickable?
Simon
-
- Forum Admin Team
- Posts: 25497
- Joined: 02 Mar 2008, 13:30
- x 4924
Re: C5 V6 petrol fuel pressure regulator upgrade
Images edited in.
-
- Donor 2023
- Posts: 913
- Joined: 11 Jan 2006, 21:11
- x 24
Re: C5 V6 petrol fuel pressure regulator upgrade
Thank you, sadly still none the wiser, dont know where it is on an ES9A in my C5!
Simon
-
- Forum Admin Team
- Posts: 37465
- Joined: 15 Sep 2015, 19:38
- x 5748
Re: C5 V6 petrol fuel pressure regulator upgrade
What's your VIN? - there are a few different EMS on these, I'll see what I have.
Please Don't PM Me For Technical Help
Marc
Marc
-
- Donor 2023
- Posts: 913
- Joined: 11 Jan 2006, 21:11
- x 24
Re: C5 V6 petrol fuel pressure regulator upgrade
VF7**************[VIN obfuscated, can be read by forum staff]
Thank you sir!
Thank you sir!
Simon
-
- Forum Admin Team
- Posts: 37465
- Joined: 15 Sep 2015, 19:38
- x 5748
Re: C5 V6 petrol fuel pressure regulator upgrade
You're going to kick yourself - the reason you can't find it is because it's in the fuel tank!
Here's the components of the fuel system for reference (Bosch ME 7.4.7) It's item (9) on the diagram.
Click Image to Zoom
It's a combined Pump, Fuel Filter and Pressure Regulator Assembly, made by Marwall.
So it's submerged in the tank, operates on 12V, with a pressure of 3 Bars, has a Flow rate of 115 to 120 l/h and the regulation pressure is 3.5 bars.
Here's the components of the fuel system for reference (Bosch ME 7.4.7) It's item (9) on the diagram.
Click Image to Zoom
|
|
|
It's a combined Pump, Fuel Filter and Pressure Regulator Assembly, made by Marwall.
So it's submerged in the tank, operates on 12V, with a pressure of 3 Bars, has a Flow rate of 115 to 120 l/h and the regulation pressure is 3.5 bars.
Please Don't PM Me For Technical Help
Marc
Marc
-
- Forum Admin Team
- Posts: 37465
- Joined: 15 Sep 2015, 19:38
- x 5748
Re: C5 V6 petrol fuel pressure regulator upgrade
^ Sorry about the delay - the Forum had an outage - just as I submitted my post!
Please Don't PM Me For Technical Help
Marc
Marc
-
- Donor 2023
- Posts: 913
- Joined: 11 Jan 2006, 21:11
- x 24
Re: C5 V6 petrol fuel pressure regulator upgrade
argh! so i literally cannot change it - its 3.5 bar already?
Thank you Marc!
Thank you Marc!
Simon