Fuel pressure regulator

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Shane_398
Started learning about 480
Posts: 59
Joined: Mon Mar 17, 2008 11:10 pm
Location: Atherton, Manchester

Fuel pressure regulator

Post by Shane_398 » Sun Nov 25, 2018 3:34 pm

Hi all

I was just wondering what/if anything would happen if i removed/bypassed the fuel pressure regulator since i'm pretty sure that is what i causing my intermittent issue with accelerating under load and the lack of power.

Tia
Shane

95, 480 Celebration 398/480. 2007-Present day
07, Jeep Cherokee 2.8CRD Limited. 2016-Present day
02, Astra 1.6 8v 2005-17
01, Jeep Cherokee 2.5TD Orvis
95, 460 Si 1.8i 2006-08
98, Astra 2.0 DTI Estate
91, 440 1.7GLE 2006
90, Peugeot405 Si 2004/5

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jamescarruthers
480 Is my middle name
Posts: 2501
Joined: Mon Jul 07, 2003 3:19 pm
Location: Cambridge

Re: Fuel pressure regulator

Post by jamescarruthers » Sun Nov 25, 2018 5:35 pm

You will blow your injectors up!

I have a brand new one you can try if you want it. I can post it tomorrow to you. Try it out. If you want to keep it, pay me the £25 I paid for it, or, send it back if it doesn't fix your problem.
1987 Volvo 480 ES, 507274, 217 - Red (Ness)
2006 Citroen C6 Exclusive 3.0 petrol/LPG
2008 Mini Cooper convertible (Mau)

Previous 480's:
J123 CFU -- ES
J449 MNL -- ES auto
D864 CPV -- ES
L691 JFC -- Turbo
F70 MNR -- ES
H858 FGV -- Turbo auto
E981 KHM -- ES (509849)

Shane_398
Started learning about 480
Posts: 59
Joined: Mon Mar 17, 2008 11:10 pm
Location: Atherton, Manchester

Re: Fuel pressure regulator

Post by Shane_398 » Sun Nov 25, 2018 5:40 pm

Hi James would you happen to have a picture of yours so I can check it against mine I can give you an email address if that's easier 😊
Shane

95, 480 Celebration 398/480. 2007-Present day
07, Jeep Cherokee 2.8CRD Limited. 2016-Present day
02, Astra 1.6 8v 2005-17
01, Jeep Cherokee 2.5TD Orvis
95, 460 Si 1.8i 2006-08
98, Astra 2.0 DTI Estate
91, 440 1.7GLE 2006
90, Peugeot405 Si 2004/5

User avatar
jamescarruthers
480 Is my middle name
Posts: 2501
Joined: Mon Jul 07, 2003 3:19 pm
Location: Cambridge

Re: Fuel pressure regulator

Post by jamescarruthers » Sun Nov 25, 2018 5:53 pm

It looks like this, but this is a stock image‎.
Image
Image
1987 Volvo 480 ES, 507274, 217 - Red (Ness)
2006 Citroen C6 Exclusive 3.0 petrol/LPG
2008 Mini Cooper convertible (Mau)

Previous 480's:
J123 CFU -- ES
J449 MNL -- ES auto
D864 CPV -- ES
L691 JFC -- Turbo
F70 MNR -- ES
H858 FGV -- Turbo auto
E981 KHM -- ES (509849)

Shane_398
Started learning about 480
Posts: 59
Joined: Mon Mar 17, 2008 11:10 pm
Location: Atherton, Manchester

Re: Fuel pressure regulator

Post by Shane_398 » Sun Nov 25, 2018 6:09 pm

Image

It doesn't look the same James mine doesn't have any holes for fixing bolts, just a straight "in" and "out" it's not attached to anything other than those for the inlet/outlet.
Shane

95, 480 Celebration 398/480. 2007-Present day
07, Jeep Cherokee 2.8CRD Limited. 2016-Present day
02, Astra 1.6 8v 2005-17
01, Jeep Cherokee 2.5TD Orvis
95, 460 Si 1.8i 2006-08
98, Astra 2.0 DTI Estate
91, 440 1.7GLE 2006
90, Peugeot405 Si 2004/5

User avatar
jamescarruthers
480 Is my middle name
Posts: 2501
Joined: Mon Jul 07, 2003 3:19 pm
Location: Cambridge

Re: Fuel pressure regulator

Post by jamescarruthers » Sun Nov 25, 2018 6:31 pm

I think that is just a non-return valve. Your regulator is on the end of your fuel rail. It is vacuum powered.‎

Photo borrowed from another post:
Image
1987 Volvo 480 ES, 507274, 217 - Red (Ness)
2006 Citroen C6 Exclusive 3.0 petrol/LPG
2008 Mini Cooper convertible (Mau)

Previous 480's:
J123 CFU -- ES
J449 MNL -- ES auto
D864 CPV -- ES
L691 JFC -- Turbo
F70 MNR -- ES
H858 FGV -- Turbo auto
E981 KHM -- ES (509849)

User avatar
jamescarruthers
480 Is my middle name
Posts: 2501
Joined: Mon Jul 07, 2003 3:19 pm
Location: Cambridge

Re: Fuel pressure regulator

Post by jamescarruthers » Sun Nov 25, 2018 6:47 pm

Apologies Shane, I've just checked the parts catalogue and the pressure regulator that I have might be for the later 1.7 cars‎, not the 2.0 cars. I will dig it out tomorrow and see which I have

Your fuel pressure regulator is still on the end of your fuel rail but the part number is 3464447‎. Item 5 in this picture:

Image

Image

Last edited by jamescarruthers on Sun Nov 25, 2018 6:52 pm, edited 1 time in total.
1987 Volvo 480 ES, 507274, 217 - Red (Ness)
2006 Citroen C6 Exclusive 3.0 petrol/LPG
2008 Mini Cooper convertible (Mau)

Previous 480's:
J123 CFU -- ES
J449 MNL -- ES auto
D864 CPV -- ES
L691 JFC -- Turbo
F70 MNR -- ES
H858 FGV -- Turbo auto
E981 KHM -- ES (509849)

User avatar
jamescarruthers
480 Is my middle name
Posts: 2501
Joined: Mon Jul 07, 2003 3:19 pm
Location: Cambridge

Re: Fuel pressure regulator

Post by jamescarruthers » Sun Nov 25, 2018 6:50 pm

Here's the valve you were looking at first.‎ I suppose it would be worth checking to see if it still works as a non-return valve while you have the fuel pressure regulator off if you do change it. I think it's purpose is to keep petrol available to the engine for easier starting.

Image

Image
1987 Volvo 480 ES, 507274, 217 - Red (Ness)
2006 Citroen C6 Exclusive 3.0 petrol/LPG
2008 Mini Cooper convertible (Mau)

Previous 480's:
J123 CFU -- ES
J449 MNL -- ES auto
D864 CPV -- ES
L691 JFC -- Turbo
F70 MNR -- ES
H858 FGV -- Turbo auto
E981 KHM -- ES (509849)

Shane_398
Started learning about 480
Posts: 59
Joined: Mon Mar 17, 2008 11:10 pm
Location: Atherton, Manchester

Re: Fuel pressure regulator

Post by Shane_398 » Sun Nov 25, 2018 8:52 pm

Well don't i feel like a burke... I thought it was that what i had circled even a mate who is big into mechanics told me it was that....Shows what he knows eh ! :nuts:

James thank you once again for going the extra mile to explain this to me, Now i understand... I Would have been knackered otherwise.

Just to clarify that the non return valve is fine it's never had a problem starting ever... :)

So it looks like i'm going to have to get to grips with this is.. Is it a particularly difficult job getting to the FPR or is it just a case of taking the bank of four pipes (Not sure of the technical term) of to get to the injectors etc...
Shane

95, 480 Celebration 398/480. 2007-Present day
07, Jeep Cherokee 2.8CRD Limited. 2016-Present day
02, Astra 1.6 8v 2005-17
01, Jeep Cherokee 2.5TD Orvis
95, 460 Si 1.8i 2006-08
98, Astra 2.0 DTI Estate
91, 440 1.7GLE 2006
90, Peugeot405 Si 2004/5

User avatar
jamescarruthers
480 Is my middle name
Posts: 2501
Joined: Mon Jul 07, 2003 3:19 pm
Location: Cambridge

Re: Fuel pressure regulator

Post by jamescarruthers » Sun Nov 25, 2018 9:05 pm

It's easy peasy to change it just depends whether or not you can get it off with the larger 2.0 manifold in place.‎ You shouldn't have to take the fuel rail off or any injectors as it is just bolted on the end of the rail. 

Two bolts, vacuum pipe, some fuel will spill‎.‎
1987 Volvo 480 ES, 507274, 217 - Red (Ness)
2006 Citroen C6 Exclusive 3.0 petrol/LPG
2008 Mini Cooper convertible (Mau)

Previous 480's:
J123 CFU -- ES
J449 MNL -- ES auto
D864 CPV -- ES
L691 JFC -- Turbo
F70 MNR -- ES
H858 FGV -- Turbo auto
E981 KHM -- ES (509849)

User avatar
jamescarruthers
480 Is my middle name
Posts: 2501
Joined: Mon Jul 07, 2003 3:19 pm
Location: Cambridge

Re: Fuel pressure regulator

Post by jamescarruthers » Sun Nov 25, 2018 9:20 pm

On our site, it mentions that is does non-return and damping to compensate for the injectors opening:
viewtopic.php?t=11172

Just read the French site (via Google translate) and it actually does some vibration damping in the return line to avoid the noise of the injectors reaching the cabin along with its more obvious function!
https://www.volvo-480.org/forum/viewtopic.php?t=41269

So, I've learnt something tonight too!
1987 Volvo 480 ES, 507274, 217 - Red (Ness)
2006 Citroen C6 Exclusive 3.0 petrol/LPG
2008 Mini Cooper convertible (Mau)

Previous 480's:
J123 CFU -- ES
J449 MNL -- ES auto
D864 CPV -- ES
L691 JFC -- Turbo
F70 MNR -- ES
H858 FGV -- Turbo auto
E981 KHM -- ES (509849)

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