User Tag List

Thanks Thanks:  0
Likes Likes:  0
Results 1 to 5 of 5

Thread: an idea to test an egr

  1. #1
    Regular Member
    Join Date
    Feb 2011
    Location
    portsmouth
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default an idea to test an egr

    If you suspect your egr is giving you poor running issues i.e hesitating etc, would it not be possible to leave the mechanical side of the egr on the manifold and unbolt the electromagnet side off to stop the egr opening the valve ? that way you know the valve is shut but not getting stuck during its operation ?

    im guessing the egr opens on lift off etc ? So it shouldnt cause too much of an issue driving it like this ... just a thought

  2. #2
    Regular Member
    Join Date
    Apr 2007
    Location
    Bristol
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats

    Vehicle : CDTI 150

    Trim : Design

    Engine : Z19DTH

    Year : 2005

    Default

    Would still give an EML as the ECU monitors the MAP sensor and looks for a chnage in vacuum when the EGR is commanded to open.
    So whilst the idea will work as such it is no more effective then just unplugging the EGR connector.

  3. #3
    Regular Member barney490's Avatar
    Join Date
    Dec 2009
    Location
    PRESTON
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    The common problem is that the egr valve sticks in the open position and whilst cleaning the valve can sometimes help prolong it, the only real way is to replace.

    just for info and as i understand it, before any smart *ss trys to rip my post apart, an egr valve opens when the ecu determines that the temperature of the ignition stroke has reached a certain value and then allows inert exhaust gases into the combustion chamber to lower the temperature of the burn. This is done to meet emission standards by reducing NOx that are produced at high temperatures. So it would seem that a valve when permenantly stuck open, would give the classic poor running when cold or below a certain rpm that so many owners have experienced.

  4. #4
    Full Member GazVXLINE170's Avatar
    Join Date
    Jun 2007
    Location
    Scotland
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    7 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats

    Vehicle : Insignia

    Trim : SRI VX-Line Nav

    Engine : 2.0 CDTI [170 PS]

    Year : 2015

    Mileage : 27000

    Default

    Quote Originally Posted by barney490 View Post
    The common problem is that the egr valve sticks in the open position and whilst cleaning the valve can sometimes help prolong it, the only real way is to replace.

    just for info and as i understand it, before any smart *ss trys to rip my post apart, an egr valve opens when the ecu determines that the temperature of the ignition stroke has reached a certain value and then allows inert exhaust gases into the combustion chamber to lower the temperature of the burn. This is done to meet emission standards by reducing NOx that are produced at high temperatures. So it would seem that a valve when permenantly stuck open, would give the classic poor running when cold or below a certain rpm that so many owners have experienced.
    Oddly that's it. On idle they are shut, between 1,000-2,000rpm they are open. Before anyone rips that post apart that's what a diesel specialist told me.

    Gazza4
    Insignia VX-Line Nav CDTI 170.

  5. #5
    Regular Member
    Join Date
    Feb 2011
    Location
    portsmouth
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats





    Default

    That's what I like , decent replies which you can learn and understand :-) thannkyou for the in depth explanation chaps :-)

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Good idea / Bad idea......?
    By david.aka.judas in forum Vectra C / Signum Car Chat
    Replies: 8
    Last Post: 3rd September 2009, 09:09
  2. A better idea!
    By Vaux-Man-G in forum Comedy & Humour
    Replies: 0
    Last Post: 24th March 2009, 18:29
  3. superchip good idea or bad idea
    By lewrymyster in forum Vectra C / Signum Car Chat
    Replies: 21
    Last Post: 3rd July 2008, 19:14
  4. superchip good idea or bad idea
    By lewrymyster in forum Vectra C / Signum Car Chat
    Replies: 3
    Last Post: 26th June 2008, 19:09

Visitors found this page by searching for:

Nobody landed on this page from a search engine, yet!

Bookmarks

Posting Permissions

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