User Tag List

Thanks Thanks:  0
Likes Likes:  0
Page 1 of 2 12 LastLast
Results 1 to 10 of 19

Thread: Majorly doing my head in

  1. #1
    Regular Member StephSCO's Avatar
    Join Date
    May 2012
    Location
    Luton
    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 : Vectra C

    Trim : Hatchback

    Engine : 1.9cdti

    Year : 2006

    Mileage : 146275

    Default Majorly doing my head in

    Hi everyone, sorry for my first post to be one begging for info but I have searched the internet for days and I keep coming up with the same web pages.

    My problem is the EGR valve, yes I know all about the blanking and cleaning, I did all that but found the car to be worse so I suspect the inlet manifold is in need of changing.

    But to my current problem, I have installed a brand new GM EGR valve and yet I still get the same error code "P0400 - Exhaust Gas Recirculation Circuit Open
    (04) - Present"


    So I checked the connection and there is 4 connectors on the socket but only 2 on the EGR, the top two connectors have power and earth constant to them, the ones that connect to the EGR only has constant earth, the power one seems dead. Is there a fuse or relay that controls the EGR valve, or does the power come on at a specific time as I cannot get rid of this fault code.

    I have ran diagnostic on the old and new valves, even put some power to the old one and the valve went in and out when I turned the 12v power supply on and off, so I know the old EGR valve works, but yet it doesn't seem to be getting any power to it. I have checked the cables as far as I can trace them and cannot find any breaks in them.

    Any help or advice would be appreciated as it is driving me mad, I want to fix this before I strip down the engine to do the inlet manifold.

    Many thanks in advance

  2. #2
    Regular Member StephSCO's Avatar
    Join Date
    May 2012
    Location
    Luton
    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 : Vectra C

    Trim : Hatchback

    Engine : 1.9cdti

    Year : 2006

    Mileage : 146275

    Default

    I meant to say that I have a 04 plate, Vectra C 1.9 CDTI 150 if that helps.

  3. #3
    Regular Member simplesi's Avatar
    Join Date
    Aug 2009
    Location
    probably off taking photos
    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 : 1.9 cdti 150

    Trim : elite


    Year : 2006

    Default

    sounds like you need to swap the connecters about to get the power and earth going to the EGR rather than the 2 earths m8 HTH

  4. #4
    Regular Member StephSCO's Avatar
    Join Date
    May 2012
    Location
    Luton
    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 : Vectra C

    Trim : Hatchback

    Engine : 1.9cdti

    Year : 2006

    Mileage : 146275

    Default

    But doing that turns the EGR valve on constant, so it is always open.

  5. #5
    Regular Member simplesi's Avatar
    Join Date
    Aug 2009
    Location
    probably off taking photos
    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 : 1.9 cdti 150

    Trim : elite


    Year : 2006

    Default

    if you only have 2 earths running to it and no power its not going to open or close , i think theres a relay or sumat to that effect on the car that switches the power off and on , i may be wrong but its the only thing i can think of . no power connection to the EGR means it wont open or close . as i say i may be wrong and someone with a little more knowledge may be along soon .

  6. #6
    Regular Member
    Join Date
    May 2006
    Location
    scotland
    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

    "if there is no power connection to the EGR means it wont open or close". As I understand it (and have had mine in bits and have played about with one on the bench with a 12 V supply), the physical spring within the EGR will default to it being closed with no power applied (unless there is such a build up of crap which prevents this but a new one would defo be in the closed position with no power).

    There sounds for sure to be a wiring or relay problem in Stephs vehicle.

  7. #7
    Regular Member 19CDTi's Avatar
    Join Date
    Jul 2009
    Location
    Perth, Scotland
    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

    More importantly, why would a 4-connector lead come off the car into a 2-connector port on the EGR? Wrong part perhaps?

    Or have I not visualised this correctly?

    Stuart

  8. #8
    Regular Member Critch's Avatar
    Join Date
    Dec 2009
    Location
    wirral
    Problems Posted
    0
    Problems Solved
    0
    Best Answers
    0
    Good Answers
    0
    Post Thanks / Like
    Mentioned
    36 Post(s)
    Tagged
    0 Thread(s)
    Vehicle InfoStats

    Vehicle : Mk1 renault scenic... I know I know but it drives

    Trim : Basic

    Engine : 1.6 16v

    Year : 2003

    Default

    Has the connector been changed?

    the egr should be ecu controlled once the ecu sees set engine conditions

  9. #9
    Regular Member StephSCO's Avatar
    Join Date
    May 2012
    Location
    Luton
    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 : Vectra C

    Trim : Hatchback

    Engine : 1.9cdti

    Year : 2006

    Mileage : 146275

    Default

    Quote Originally Posted by wickedwillie View Post
    "if there is no power connection to the EGR means it wont open or close". As I understand it (and have had mine in bits and have played about with one on the bench with a 12 V supply), the physical spring within the EGR will default to it being closed with no power applied (unless there is such a build up of crap which prevents this but a new one would defo be in the closed position with no power).

    There sounds for sure to be a wiring or relay problem in Stephs vehicle.
    I too have done the bench test and with power going in, switch it on and off the valve does work as it should by going in and out. I have now tested new one and it works the same but a lot faster, which I am assuming is due to it being brand new lol.




    Quote Originally Posted by 19CDTi View Post
    More importantly, why would a 4-connector lead come off the car into a 2-connector port on the EGR? Wrong part perhaps?

    Or have I not visualised this correctly?

    Stuart
    The connector is actually 6 pins lol, two middle ones are empty, both left and right upper and lower have connectors in there. It is the right connector as it fits perfectly in to the egr. Just seems strange that there would be power to the connector that doesn't go in to the pins on the egr.

    Quote Originally Posted by Critch View Post
    Has the connector been changed?

    the egr should be ecu controlled once the ecu sees set engine conditions
    No this looks like the original connector as it looks as old as the car is. I have used OP-COM to test the EGR, which should make it do what it should do and you should hear a clicking sound but nothing is going on, which makes me think that the power to the EGR is on an intermittent supply and not a constant one, which would be controlled either by the ECU or a relay. I have disconnected the battery, done it last night and just reattached the cables 30 minutes ago, at 16.30 so almost 24 hours disconnected and yet OP-COM still says same error.

  10. #10
    Regular Member StephSCO's Avatar
    Join Date
    May 2012
    Location
    Luton
    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 : Vectra C

    Trim : Hatchback

    Engine : 1.9cdti

    Year : 2006

    Mileage : 146275

    Default

    I have just unplugged the socket going in to the EGR valve, ran diagnostics, and got these fault codes:


    P0400 - Exhaust Gas Recirculation Circuit Open
    (04) - Present

    P1125 - Throttle Actuator Feedback Circuit Malfunction
    (08) - Present

    P0638 - Electronic Throttle Control Circuit open
    (04) - Present

    P1109 - Swirl Actuator Feedback Circuit High Voltage
    (05) - Present

    P1110 - Swirl Actuator Circuit Open
    (04) - Present
    Once I plugged the EGR back in, and cleared the codes I only get these fault codes:

    P0400 - Exhaust Gas Recirculation Circuit Open
    (04) - Present

    P1125 - Throttle Actuator Feedback Circuit Malfunction
    (08) - Present

    P0638 - Electronic Throttle Control Circuit open
    (04) - Present
    So is it possible the Swirl Actuator feeds the EGR valve? And if anyone out there would be willing to check their connector and see if they are getting power to the EGR cable, as I said the top 2, have earth and supply, bottom 2 only has earth on the left pin thing as I look at the socket but nothing on the right. I will take a photo of it tomorrow and show what I am trying to explain.

Page 1 of 2 12 LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. Head gasket or head?
    By GCusdin in forum Engine & Drivetrain
    Replies: 1
    Last Post: 28th December 2012, 17:37
  2. Is it just in my head or is something not right?...
    By mattyc in forum Engine & Drivetrain
    Replies: 21
    Last Post: 23rd March 2011, 14:21
  3. Front head rests/rear head rests
    By mickontherun in forum Vectra C / Signum Car Chat
    Replies: 7
    Last Post: 12th July 2008, 23:29
  4. Front head rests/rear head rests
    By mickontherun in forum Vectra C / Signum Car Chat
    Replies: 0
    Last Post: 12th July 2008, 22:47
  5. A new head for my vec
    By rushy in forum Vectra C / Signum Car Chat
    Replies: 5
    Last Post: 17th June 2006, 04:25

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
  •