GO FISHING, use SLABSAUCE Fishing Attractant
Results 1 to 8 of 8

Thread: removing fuel pressure

  1. #1
    Join Date
    Jan 2007
    Location
    Dayton Ohio
    Posts
    1,483

    Default removing fuel pressure

    How do you remove the fuel pressure on the hoses that feed the fuel pump? I need to pull the fuel sending unit and clean it. I have heard you can pull the fuel pump fuse and start the car until it dies. I also heard you can enter a code (OBC) that will disable the fuel pump, then run the car until it dies. Any one know the code? Is there another way? I am guessing the tank is at about 1/2 level and I need to get this done asap.

  2. #2
    Join Date
    Aug 2005
    Location
    Iowa, USA
    Posts
    407

    Default

    Unless there is another code, the CODE feature on the OBC prevents the car from starting. You can't engage it while the car is running.

    Seems like pulling the fuse sounds reasonable.
    1995 525i "Stefanie"

  3. #3
    Join Date
    Dec 2003
    Location
    Eastern Tennessee USi
    Posts
    14,843

    Default

    Quote Originally Posted by mzarifkar View Post
    Seems like pulling the fuse sounds reasonable.
    pressure will still be in the line.
    95 E34 530I V2.37
    ===========
    Those who make peaceful revolution impossible will make violent revolution inevitable.

    John F. Kennedy

  4. #4
    Join Date
    Sep 2008
    Location
    Gold Coast, Australia
    Posts
    178

    Default

    pull the fuel relay in the dme box?

  5. #5
    Join Date
    Aug 2008
    Location
    Pennsylvania
    Posts
    206

    Default

    Pull the fuse and start the car. The line will have fuel in it, but it won't be under such pressure that will cause it to shoot out everywhere.

  6. #6
    Join Date
    Feb 2006
    Location
    Oldham, England
    Posts
    3,078

    Default

    I dont even bother trying - the motor will die before you get rid of the fuel pressure. Just have a large rag handy. One of her best tea towels is plenty big enough

  7. #7
    Join Date
    Mar 2007
    Location
    Liverpool UK
    Posts
    1,536

    Default

    Quote Originally Posted by whiskychaser View Post
    One of her best tea towels is plenty big enough
    LOL!! I second that motion!!! Hahahaha... Don't be using any old thing either, only the best will do.
    1995 XJR: 4.0L S/charged straight 6 Auto

    What... It's not broken??? I can still fix it

  8. #8
    Join Date
    Oct 2005
    Posts
    518

    Default

    +3 on the big rag idea. Tried the fuse method before as well as applying vacuum to the FPR. In the end, the rag saves the day anyway. Just don't smoke while doing this

Similar Threads

  1. Replies: 8
    Last Post: 10-08-2007, 08:16 PM
  2. HELP! can't get fuel pressure regulator out of fuel rail....
    By ryan roopnarine in forum 5 Series BMW
    Replies: 2
    Last Post: 01-21-2007, 09:26 PM
  3. Replies: 4
    Last Post: 01-13-2007, 01:47 AM
  4. Removing the Fuel Tank
    By Kobe Diesel in forum 5 Series BMW
    Replies: 4
    Last Post: 02-28-2006, 06:31 PM
  5. removing fuel injectors
    By panzershreck in forum 5 Series BMW
    Replies: 1
    Last Post: 09-18-2004, 01:21 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •