engine managment light

1. user_36815 Regular Poster Joined: Aug 2009 shrewsbury Posts: 389 mk 2 vtr & vts

   #1 21st March 2010, 21:09

   engine managment light lit up on my car, plugged in the code reader, looked up the code and it says, cat effiency below threshold bank 1, does anyone know what that means ??
2. dankzy Established Member Joined: May 2009 Middlesbrough Posts: 1143 citroen saxo 1.1 forte orange mango :)

   #2 21st March 2010, 21:17

   your catalytic converter isnt working right, probaly need replacing
3. Marky_C Established Member Joined: Nov 2008 Leeds Posts: 1361 Zetec S TDCI

   #3 21st March 2010, 21:18

   Yeah mate your CAT needs replacing. Think yours is in the manifold.
4. dankzy Established Member Joined: May 2009 Middlesbrough Posts: 1143 citroen saxo 1.1 forte orange mango :)

   #4 21st March 2010, 21:21

   if it a mk2 it in the manifold, so that will mean new manifold wont it? cause there built in, tho some early mk2 have under car, what reg is your car? up to W reg it prob under car, anything after it in manifold
5. grezza Newbie Joined: Jun 2009 newark Posts: 25 saxo 1.4 furio vectra c sxi vw caddy maxi

   #5 21st March 2010, 21:22

   had exactly same thing happen on my mrs saxo very recently....replaced cat and full exhaust...seems ok now
6. user_36815 Regular Poster Joined: Aug 2009 shrewsbury Posts: 389 mk 2 vtr & vts

   #6 21st March 2010, 21:25

   only had a new cat and full exhaust 5 months ago
7. dankzy Established Member Joined: May 2009 Middlesbrough Posts: 1143 citroen saxo 1.1 forte orange mango :)

   #7 21st March 2010, 21:29

   could be a fautly lamba sensor then, or you could be unlucky and the cat gone again, was it a new cat or second hand?
8. grezza Newbie Joined: Jun 2009 newark Posts: 25 saxo 1.4 furio vectra c sxi vw caddy maxi

   #8 21st March 2010, 21:30

   try lambda sensor...shows as same fault code...also damn site cheaper to buy
9. user_36815 Regular Poster Joined: Aug 2009 shrewsbury Posts: 389 mk 2 vtr & vts

   #9 21st March 2010, 21:31

   brand new, light has come 3 times now, had the car serviced last month and never came on before then.
10. dankzy Established Member Joined: May 2009 Middlesbrough Posts: 1143 citroen saxo 1.1 forte orange mango :)

    #10 21st March 2010, 21:33

    lamba about £50 new
11. user_36815 Regular Poster Joined: Aug 2009 shrewsbury Posts: 389 mk 2 vtr & vts

    #11 21st March 2010, 21:34

    sorry if i sound thick, but what amd where does that go ?
12. dankzy Established Member Joined: May 2009 Middlesbrough Posts: 1143 citroen saxo 1.1 forte orange mango :)

    #12 21st March 2010, 21:34

    maybe there knocked the lamba when servicing it and damage it, i would start with that mate, get a new lamba sensor, start with the cheapest first, it can only really be that or cat and since you said cat new, my money on sensor
13. Nyoung87 Newbie Joined: Jan 2010 Middlesbrough Posts: 4 '52' saxo VTR

    #13 21st March 2010, 21:36

    have same problem with mine at the moment just had the top sensor changed light came back on after 150 miles in to have other sensor changed this week fingers crossed this will sort it new sensor (uprated one ) cost me £140 fitted so by next week end £280 hopefully i wont have to change the cat after that
14. user_36815 Regular Poster Joined: Aug 2009 shrewsbury Posts: 389 mk 2 vtr & vts

    #14 21st March 2010, 21:36

    yes cheapest first is good, hope it is that and not the cat
15. dankzy Established Member Joined: May 2009 Middlesbrough Posts: 1143 citroen saxo 1.1 forte orange mango :)

    #15 21st March 2010, 21:36

    the lamba goes in the manifold and checks the exhaust emmissions, if the emission to high then your engine management light will come on, so it could be faulty
16. dankzy Established Member Joined: May 2009 Middlesbrough Posts: 1143 citroen saxo 1.1 forte orange mango :)

    #16 21st March 2010, 21:38

    you would be very unlucky for a cat to go after 5 months, unless you drive the car alot, and i mean alot lol
17. grezza Newbie Joined: Jun 2009 newark Posts: 25 saxo 1.4 furio vectra c sxi vw caddy maxi

    #17 21st March 2010, 21:38

    i agree with dankzy..would be very unlucky to be cat again..they dont go that quick...sensor is located further down pipe below the cat....i think
18. user_36815 Regular Poster Joined: Aug 2009 shrewsbury Posts: 389 mk 2 vtr & vts

    #18 21st March 2010, 21:38

    ah ok thank you.
19. user_36815 Regular Poster Joined: Aug 2009 shrewsbury Posts: 389 mk 2 vtr & vts

    #19 21st March 2010, 21:39

    dont drive the car much, have done a 1000 miles maybe since having the cat fitted
20. Nyoung87 Newbie Joined: Jan 2010 Middlesbrough Posts: 4 '52' saxo VTR

    #20 21st March 2010, 21:40

    there are 2 one before cat (bank 2 i think ) and one after