Home Forums Articles How To's FAQ Register
Go Back   Xoutpost.com > BMW SAV Forums > X5 (E53) Forum
Fluid Motor Union
User Name
Password
Member List Premier Membership Search Today's Posts Mark Forums Read

Xoutpost server transfer and maintenance is occurring....
Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management


Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 03-24-2020, 05:19 PM
Member
 
Join Date: Nov 2015
Location: Dallas, TX
Posts: 27
Tn52 is on a distinguished road
Low fuel pressure sensor?

Hi everyone:
Is there a low fuel pressure sensor for our car? if so, could someone please give me the part number, it location and/or a picture? Thanks!
2005 X5 (E53) 3.0L Auto.
Reply With Quote

Sponsored Links

  #2  
Old 03-24-2020, 06:23 PM
upallnight's Avatar
Member
 
Join Date: Aug 2012
Location: Cook County
Posts: 6,583
upallnight is on a distinguished road
There's a fuel pressure regulator fitted with the fuel filter.
__________________
2006 Infiniti G35
2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD
Lotus Europa 1970 Destroyed by fire
Lotus Europa 1970 S2 Renault Powered
Lotus Type 52 1970 Twincam Webers Powered
PORSCHE 911 Targa 1982 The Garage Queen
Audi Avant donated to Kars for Kids
BMW 525IT Sold
Audi 4000CS Quattro Sold
Jensen Healey Lotus Powered Sold
Opel 1900 Sold
Triumph Spitfire 1971 Sold
Triumph Spitfire 1968 Sold
Plymouth "Cuda" 340 Six pack SOLD
Reply With Quote
  #3  
Old 03-24-2020, 07:34 PM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 5,474
andrewwynn is on a distinguished road
Diesel might have pressure sensor not petrol models. You can access the pressure on the fuel rail at the front of the engine.

I've gotten away with using tire gauge but don't use a digital one and expect it to keep working.
__________________
E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
Reply With Quote
  #4  
Old 03-25-2020, 09:58 PM
upallnight's Avatar
Member
 
Join Date: Aug 2012
Location: Cook County
Posts: 6,583
upallnight is on a distinguished road
Quote:
Originally Posted by andrewwynn View Post
Diesel might have pressure sensor not petrol models. You can access the pressure on the fuel rail at the front of the engine.

I've gotten away with using tire gauge but don't use a digital one and expect it to keep working.
Didn't know BMW made a Diesel 2005 X5 (E53) 3.0L Auto.
__________________
2006 Infiniti G35
2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD
Lotus Europa 1970 Destroyed by fire
Lotus Europa 1970 S2 Renault Powered
Lotus Type 52 1970 Twincam Webers Powered
PORSCHE 911 Targa 1982 The Garage Queen
Audi Avant donated to Kars for Kids
BMW 525IT Sold
Audi 4000CS Quattro Sold
Jensen Healey Lotus Powered Sold
Opel 1900 Sold
Triumph Spitfire 1971 Sold
Triumph Spitfire 1968 Sold
Plymouth "Cuda" 340 Six pack SOLD
Reply With Quote
  #5  
Old 03-25-2020, 10:00 PM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 5,474
andrewwynn is on a distinguished road
I was contrasting against the "other" type of car
__________________
E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
Reply With Quote
  #6  
Old 03-26-2020, 04:13 AM
wpoll's Avatar
Member
 
Join Date: Sep 2015
Location: South Island, New Zealand
Posts: 3,157
wpoll will become famous soon enough
Quote:
Originally Posted by upallnight View Post
Didn't know BMW made a Diesel 2005 X5 (E53) 3.0L Auto.
I own one so I guess they did.
__________________
Wayne
2005 BMW X5 3.0d (b 02/05)
2001 BMW F650GS Dakar (b 06/01)
Reply With Quote
  #7  
Old 03-26-2020, 11:06 AM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 5,474
andrewwynn is on a distinguished road
And does it have a pressure sensor for fuel? I donít think any of the petrol models do but I would not be surprised if the diesel model does.
__________________
E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
Reply With Quote
  #8  
Old 03-26-2020, 03:13 PM
wpoll's Avatar
Member
 
Join Date: Sep 2015
Location: South Island, New Zealand
Posts: 3,157
wpoll will become famous soon enough
Quote:
Originally Posted by andrewwynn View Post
And does it have a pressure sensor for fuel? I donít think any of the petrol models do but I would not be surprised if the diesel model does.
Sure does - the DDE modulates the output of the HPFP to raise and lower the fuel rail pressure and uses a fuel rail pressure sensor as part of the control loop. With fuel pressures up to 1650 bar, monitoring the exact pressure is pretty important.

I've not studied the M54 fuel system. I know it only runs at around 3.5 bar max pressure but assume that there's no actual pressure control beyond a simple mechanical regulator in the fuel line somewhere and therefore not likely any sensor to monitor the fuel pressure.
__________________
Wayne
2005 BMW X5 3.0d (b 02/05)
2001 BMW F650GS Dakar (b 06/01)
Reply With Quote
  #9  
Old 03-26-2020, 04:29 PM
andrewwynn's Avatar
Member
 
Join Date: Jun 2015
Location: Racine, WI
Posts: 5,474
andrewwynn is on a distinguished road
Never saw any mention of a sensor but every time Iíve measured it was within 1/2 psi of design. (It has to be pretty close since the fuel is regulated by milliseconds of pulse and an assumed 50psi).

Itís why I tell people to measure their pressure when they have lean or rich situation not easily traced to a vaccine leak.
__________________
E53 / M54 2001 3.0i gas LHD (pair of them: his & her)
Reply With Quote
  #10  
Old 03-26-2020, 04:45 PM
wpoll's Avatar
Member
 
Join Date: Sep 2015
Location: South Island, New Zealand
Posts: 3,157
wpoll will become famous soon enough
Looking at newtis.info, the M54 fuel pressure regulator is replaceableÖ as UAN stated.



https://www.newtis.info/tisv2/a/en/e...l-unit/ABwpdCb
__________________
Wayne
2005 BMW X5 3.0d (b 02/05)
2001 BMW F650GS Dakar (b 06/01)
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On





All times are GMT -4. The time now is 12:13 AM.
vBulletin, Copyright 2020, Jelsoft Enterprises Ltd. SEO by vBSEO 3.6.0
© 2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.