Fuel pressure!

Need technical Q/A then you're in the right place

Moderator: martauto

Daf318is
E30 Zone Camper
E30 Zone Camper
Posts: 1260
Joined: Mon Jul 30, 2007 11:00 pm
Location: North Wales (Denbighshire)

Post Thu Jun 18, 2009 7:58 pm

If anyone can shed any light on this I'll send you a months supply of :beer: !

My car has all the symptoms of low fuel pressure - it has done (on and off) ever since I put the M50 in it.

When I take off a high pressure fuel hose all I get is a trickle - even if I've bridged the fuel pump relay 10 seconds before hand!

I have tried the following
- 3 fuel pumps
- 3 FPRs
- Fuel rail + injectors

and there are no leaks!
Image
Now driving an E46 320D touring :(, but it get's worse..... the new project is going to be Ford powered!
Top
DanThe
E30 Zone Team Member
E30 Zone Team Member
Posts: 28647
Joined: Sat Sep 10, 2005 11:00 pm
Location: Staffs

Post Thu Jun 18, 2009 8:40 pm

Just replied to your message, you didnt mention a months supply of beer! Im back on the stella again BTW winkeye
Top
Daf318is
E30 Zone Camper
E30 Zone Camper
Posts: 1260
Joined: Mon Jul 30, 2007 11:00 pm
Location: North Wales (Denbighshire)

Post Thu Jun 18, 2009 9:40 pm

If you can sort it I will give you a years supply of beer after all the bits you've helped me with winkeye
Image
Now driving an E46 320D touring :(, but it get's worse..... the new project is going to be Ford powered!
Top
Bob_S
Engaged to the E30 Zone
Engaged to the E30 Zone
Posts: 5412
Joined: Sat Jun 11, 2005 11:00 pm
Location: chester, cheshire

Post Fri Jun 19, 2009 1:01 am

Daf318is wrote:If you can sort it I will give you a years supply of beer after all the bits you've helped me with winkeye
no need to worry about the fuel being paid for.. there'll be no money to pay for it at the rate Dan is swilling them.

I know what's wrong.
Bollocks to this 24v scrap!
Top
Daf318is
E30 Zone Camper
E30 Zone Camper
Posts: 1260
Joined: Mon Jul 30, 2007 11:00 pm
Location: North Wales (Denbighshire)

Post Fri Jun 19, 2009 9:15 am

Bob_S wrote:I know what's wrong.
You do?
Image
Now driving an E46 320D touring :(, but it get's worse..... the new project is going to be Ford powered!
Top
hongkongfuey
Mad-tango-geezer
Posts: 3304
Joined: Fri Jun 08, 2007 11:00 pm
Location: portsmouth

Post Fri Jun 19, 2009 1:55 pm

something silly but have you changed the fuel filter? If you have is it wrong way round? Is the fuel line blocked? Have you tried a length of fuel line(seperate from the one on the car) from the pump to the fuel rail ?
if there wern't people like me,
with cars like mine,
who would you put down to make yourself feel better?
Top
Daf318is
E30 Zone Camper
E30 Zone Camper
Posts: 1260
Joined: Mon Jul 30, 2007 11:00 pm
Location: North Wales (Denbighshire)

Post Fri Jun 19, 2009 2:38 pm

I have tried a new fuel filter on it and it is the right way 'round! But it made no difference!

I've bridged the fuel pump relay with the fuel rail disconnected and it poors out fuel so I'm sure there is no blockage in it.
Image
Now driving an E46 320D touring :(, but it get's worse..... the new project is going to be Ford powered!
Top
hongkongfuey
Mad-tango-geezer
Posts: 3304
Joined: Fri Jun 08, 2007 11:00 pm
Location: portsmouth

Post Fri Jun 19, 2009 6:06 pm

fuelpump/dme relay???
if there wern't people like me,
with cars like mine,
who would you put down to make yourself feel better?
Top
Daf318is
E30 Zone Camper
E30 Zone Camper
Posts: 1260
Joined: Mon Jul 30, 2007 11:00 pm
Location: North Wales (Denbighshire)

Post Fri Jun 19, 2009 6:51 pm

Just pinched the return hose and tried it. I have pressure if I do that. Can it be possible that I've tried 3 faulty FPRs? :eek:
Image
Now driving an E46 320D touring :(, but it get's worse..... the new project is going to be Ford powered!
Top
hongkongfuey
Mad-tango-geezer
Posts: 3304
Joined: Fri Jun 08, 2007 11:00 pm
Location: portsmouth

Post Fri Jun 19, 2009 7:05 pm

the fuel and return hoses not on back to front???
if there wern't people like me,
with cars like mine,
who would you put down to make yourself feel better?
Top
Daf318is
E30 Zone Camper
E30 Zone Camper
Posts: 1260
Joined: Mon Jul 30, 2007 11:00 pm
Location: North Wales (Denbighshire)

Post Fri Jun 19, 2009 7:23 pm

hongkongfuey wrote:the fuel and return hoses not on back to front???
Lol no! The car runs fine 50% of the time - rest of the time it's a pain in the butt!

Just tried driving it with mole grips on the fuel return and it was a bit better! Going to try ANOTHER FPR tomorrow I think! :banghead:
Image
Now driving an E46 320D touring :(, but it get's worse..... the new project is going to be Ford powered!
Top
Bob_S
Engaged to the E30 Zone
Engaged to the E30 Zone
Posts: 5412
Joined: Sat Jun 11, 2005 11:00 pm
Location: chester, cheshire

Post Fri Jun 19, 2009 7:36 pm

Daf318is wrote:
hongkongfuey wrote:the fuel and return hoses not on back to front???
Lol no! The car runs fine 50% of the time - rest of the time it's a pain in the butt!

Just tried driving it with mole grips on the fuel return and it was a bit better! Going to try ANOTHER FPR tomorrow I think! :banghead:
I know the answer.
Bollocks to this 24v scrap!
Top
Chris-W
E30 Zone Team Member
E30 Zone Team Member
Posts: 7219
Joined: Tue May 24, 2005 11:00 pm
Location: South Cheshire

Post Fri Jun 19, 2009 7:51 pm

Go on then!
Image
Top
Daf318is
E30 Zone Camper
E30 Zone Camper
Posts: 1260
Joined: Mon Jul 30, 2007 11:00 pm
Location: North Wales (Denbighshire)

Post Fri Jun 19, 2009 7:57 pm

Chris-W wrote:Go on then!
It's Bobs FPR I'm trying tomrrow so if he knows that's NOT the answer and he still sells it to me I'll make him eat it! :evil:
Image
Now driving an E46 320D touring :(, but it get's worse..... the new project is going to be Ford powered!
Top
Bob_S
Engaged to the E30 Zone
Engaged to the E30 Zone
Posts: 5412
Joined: Sat Jun 11, 2005 11:00 pm
Location: chester, cheshire

Post Fri Jun 19, 2009 8:03 pm

it's because Dafs has a very small right foot and isn't operating the big pedal on the right in accordance with the m50 driving rules part 3.4 of the 2nd edition 2009
Bollocks to this 24v scrap!
Top
Daf318is
E30 Zone Camper
E30 Zone Camper
Posts: 1260
Joined: Mon Jul 30, 2007 11:00 pm
Location: North Wales (Denbighshire)

Post Fri Jun 19, 2009 8:11 pm

Bob_S wrote:it's because Dafs has a very small right foot and isn't operating the big pedal on the right in accordance with the m50 driving rules part 3.4 of the 2nd edition 2009
Think you should be made to eat that fuel rail and FPR after such a comment. How am I ever going to sleep tonight knowing you've said that :cry:

Just watch out for my dust in the meet next Sunday :P [if I ever get it running properly!]
Image
Now driving an E46 320D touring :(, but it get's worse..... the new project is going to be Ford powered!
Top
DanThe
E30 Zone Team Member
E30 Zone Team Member
Posts: 28647
Joined: Sat Sep 10, 2005 11:00 pm
Location: Staffs

Post Fri Jun 19, 2009 11:10 pm

Did you check the vacuum thing? Ive never known or heard of a fpr to go wrong, only leak
Top
Bob_S
Engaged to the E30 Zone
Engaged to the E30 Zone
Posts: 5412
Joined: Sat Jun 11, 2005 11:00 pm
Location: chester, cheshire

Post Sat Jun 20, 2009 12:46 am

Daf318is wrote:
Bob_S wrote:it's because Dafs has a very small right foot and isn't operating the big pedal on the right in accordance with the m50 driving rules part 3.4 of the 2nd edition 2009
Think you should be made to eat that fuel rail and FPR after such a comment. How am I ever going to sleep tonight knowing you've said that :cry:

Just watch out for my dust in the meet next Sunday :P [if I ever get it running properly!]
2 of 3 of my running fleet are quicker than your is matey jim bob!! ;)
Bollocks to this 24v scrap!
Top
Daf318is
E30 Zone Camper
E30 Zone Camper
Posts: 1260
Joined: Mon Jul 30, 2007 11:00 pm
Location: North Wales (Denbighshire)

Post Sat Jun 20, 2009 7:18 pm

Bob - go iron your dick!
Image
Now driving an E46 320D touring :(, but it get's worse..... the new project is going to be Ford powered!
Top

Return to “E30 Technical Help”