User Tag List

Thanks Thanks:  0
Likes Likes:  0
Page 1 of 2 12 LastLast
Results 1 to 10 of 14

Thread: Fault codes 0422 0432

  1. #1
    Regular Member jamesr's Avatar
    Join Date
    Nov 2006
    Location
    Lancashire
    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 0422 0432

    I keep getting the error codes :

    0422 and 0432

    Main catalyst below threshold Bank 1
    Main catalyst below threshold Bank 2


    Any ideas on a cure?

  2. #2
    Regular Member Gsi3.2's Avatar
    Join Date
    Jul 2005
    Location
    Technical directors office
    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

    yep, you need to change the cats in the manifolds....best bet is to get a set off of ebay...you need the manifolds off a 2.6V6 or 3.2V6 with the cats in between the two lambdas

  3. #3
    Regular Member jamesr's Avatar
    Join Date
    Nov 2006
    Location
    Lancashire
    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

    Will this cause the car the run a bit "rough"?

    Especially at higer speeds and an acceleration cos it seems to have lost a bit of ooomph!

  4. #4
    Regular Member jamesr's Avatar
    Join Date
    Nov 2006
    Location
    Lancashire
    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 Gsi3.2 View Post
    yep, you need to change the cats in the manifolds....best bet is to get a set off of ebay...you need the manifolds off a 2.6V6 or 3.2V6 with the cats in between the two lambdas

    Think I need to book my car in at the GSi 3.2 garage

  5. #5
    Regular Member Gsi3.2's Avatar
    Join Date
    Jul 2005
    Location
    Technical directors office
    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 jamesr View Post
    Will this cause the car the run a bit "rough"?

    Especially at higer speeds and an acceleration cos it seems to have lost a bit of ooomph!
    it won't cause rough running.. it just means the car is not running as 'clean' as it can...

    as there is no differential across the readings of the two lambda's per cat it can't meter the fuel ratio as correctly as it would wish, so may well be running of 'average baseline' values...

    lost oomph may well be the cat breaking up as well and blocking the downpipes, BUT if it is running off baseline values it will be down on power anyway ..

    don't buy the manifolds new.. they are over £500 each..

  6. #6
    Regular Member jamesr's Avatar
    Join Date
    Nov 2006
    Location
    Lancashire
    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 have managed to get hold of the manifolds/cats.

    Is it worth changing the main cat too? and will this fit off the 2.6?

    I bet fitting is a B$tch?
    Once fitted how do I stop it running on"baseline values"?

    Thanks

  7. #7
    Regular Member Gsi3.2's Avatar
    Join Date
    Jul 2005
    Location
    Technical directors office
    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

    once it detects a correct range of figures from the 2nd stage lambdas it will revert to those....

    ignore the main cat, they are more or less superfluous on these cars as they are after the measuring systems...

    to change the manifolds, you just need to drop the front pipe down...disconnect the lambdas from the wiring looms, remove the rear heatsheilding from the back bank and be double jointed enough to get at all the manifold fixings..swap over your lambda sensors to the new cats and hope they are in good condition or it will all be to no gain....

  8. #8
    Regular Member jamesr's Avatar
    Join Date
    Nov 2006
    Location
    Lancashire
    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

    So.....when are you free

  9. #9
    Regular Member Gsi3.2's Avatar
    Join Date
    Jul 2005
    Location
    Technical directors office
    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

    LOL... it's easy... you can do it at home...

  10. #10
    Regular Member jamesr's Avatar
    Join Date
    Nov 2006
    Location
    Lancashire
    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

    So I could lose the main cat? put a straight thru pipe in?

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. fault codes
    By Swedge in forum Electrical & ICE (including SatNav)
    Replies: 0
    Last Post: 17th November 2012, 17:30
  2. Fault codes???
    By lukesignum in forum Engine & Drivetrain
    Replies: 7
    Last Post: 11th January 2010, 20:15
  3. Fault code 0422 on 3.2 V6
    By Annalogg in forum Engine & Drivetrain
    Replies: 3
    Last Post: 12th December 2009, 10:48
  4. 2 fault codes
    By bigmac in forum Electrical & ICE (including SatNav)
    Replies: 1
    Last Post: 1st April 2009, 12:49
  5. Fault code 0422
    By jamesr in forum Engine & Drivetrain
    Replies: 2
    Last Post: 4th May 2008, 09:56

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
  •