User Tag List

Thanks Thanks:  0
Likes Likes:  0
Page 1 of 3 123 LastLast
Results 1 to 10 of 25

Thread: fault codes

  1. #1
    Regular Member Big Knox's Avatar
    Join Date
    Feb 2009
    Location
    Edinburgh
    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 fault codes

    P0400 - Exhaust Gas Recirculation Flow Insufficient Detected
    (5A) - Present
    P0621 - Generator Lamp "L" Control Circuit Malfunction
    (01) - Present
    P0400 is EGR so just wondering how much success people have with cleaning it? Am I just delaying the inevitable replacement or does it actually bring the EGR valve back to life?

    P0621 I think is related to the alternator. I replaced my alternator a few months ago after the original died so hope I don't need another one. No battery lamp on the dash though. Anyone got any thoughts on the above code?

    Cheers.

    PS I have 1.9 CDTi [150]

  2. #2
    Regular Member Big Knox's Avatar
    Join Date
    Feb 2009
    Location
    Edinburgh
    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


  3. #3
    Regular Member
    Join Date
    Sep 2007
    Location
    West
    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

    I haven't even removed mine on my cdti yet, i did on my preface dti & it made a big difference...
    If your running around with that code present it certainly won't do any harm to strip it & clean etc...

  4. #4
    Regular Member Big Knox's Avatar
    Join Date
    Feb 2009
    Location
    Edinburgh
    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

    this is my task for this afternoon. Going to pop to halfrauds and get some carb cleaner and then give the EGR and boost sensor a skoosh

  5. #5
    Regular Member
    Join Date
    Sep 2009
    Location
    middlesbrough
    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

    Could the alternator code just be a stored fault that wasn't deleted?

  6. #6
    Regular Member djr69uk's Avatar
    Join Date
    Feb 2008
    Location
    Midlands
    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

    Regarding the P0621. I've read that some replacement alternators can throw this up. It happened after I got mine replaced a year ago. You don't get EML or spanner light, just the stored fault right? If so... my advice, as long as the glow plugs are working and you get GP light on for few seconds first thing in the morning as normal... then just ignore it. It doesn't seem to cause any problems.

    With regard to the EGR. Strip and clean as per the 'how 2'. You are essentially servicing this item and as long as you do it semi regularly (I do mine about every 6 months), then it should last.

  7. #7
    Regular Member djr69uk's Avatar
    Join Date
    Feb 2008
    Location
    Midlands
    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

    Taken from another forum post...

    P0621 - "This happens if you fit the wrong alternator. On older types the L circuit was simply connected straight to the warning lamp. On a Canbus car it goes to the ECU which controls the warning light. I am guessing your alternator does not comply with Canbus.

    This is a known problem when fitting an aftermarket alternator. Not all of them are correctly listed!"

    I'd ignore it chap. I have been lol!

  8. #8
    Regular Member Big Knox's Avatar
    Join Date
    Feb 2009
    Location
    Edinburgh
    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

    yeah, not sure if the alternator is throwing up the fault. The spanner light then the EML light came on and when I put OP-COM on the car, the two faults came up together so I'm assuming perhaps the EGR is the cause of the lights and the alternator one might be from the past.

    This afternoon I got the EGR out and cleaned it and also cleaned the boost sensor. Still getting the spannerlight although no EML so far. Still getting P0400-5A, any other suggestions for what I can do?

  9. #9
    Regular Member djr69uk's Avatar
    Join Date
    Feb 2008
    Location
    Midlands
    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

    Quote Originally Posted by Big Knox View Post
    yeah, not sure if the alternator is throwing up the fault. The spanner light then the EML light came on and when I put OP-COM on the car, the two faults came up together so I'm assuming perhaps the EGR is the cause of the lights and the alternator one might be from the past.

    This afternoon I got the EGR out and cleaned it and also cleaned the boost sensor. Still getting the spannerlight although no EML so far. Still getting P0400-5A, any other suggestions for what I can do?
    Did you take it completely apart and drill out as per the 'how2'? If not then you need to do this chap.

  10. #10
    Regular Member Big Knox's Avatar
    Join Date
    Feb 2009
    Location
    Edinburgh
    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

    spoke to soon, EML back on. I have to admit I just cleaned the valve. I didn't have time to punch out the solenoid. I guess that's my next step. is there anything else this could be other than EGR or boost sensor? solenoid side of EGR didn't look too bad visually.

Page 1 of 3 123 LastLast

Thread Information

Users Browsing this Thread

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

Similar Threads

  1. fault codes?
    By farley2708 in forum Engine & Drivetrain
    Replies: 10
    Last Post: 5th February 2012, 00:18
  2. fault codes
    By ADAM123 in forum Engine & Drivetrain
    Replies: 3
    Last Post: 31st January 2012, 19:02
  3. Fault Codes
    By tony100la in forum Vectra C / Signum Car Chat
    Replies: 0
    Last Post: 10th November 2010, 09:49
  4. Fault Codes
    By cdms811 in forum Vectra C / Signum Car Chat
    Replies: 1
    Last Post: 15th November 2007, 14:17

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
  •